Key Facts

From 1951 to 2025, long-record stations in United States warmed by +0.17 C per decade (+0.30 F) (95 percent interval +0.11 to +0.22 C), from 2,488 stations measured against each station's own 1961-1990 mean.
The latest year in the series for United States, 2025, was +1.24 C against the 1961-1990 mean.
In United States the daily minimum rose faster than the daily maximum, by 0.09 C per decade (the two intervals overlap).
Of 4,025 stations in United States with at least 50 complete years of record, 377 had 2024 as their warmest year.
In United States, the mean annual temperature of 2,140 stations changed by +0.97 C between the 1961-1990 and 2011-2025 periods.

Warming

United States, against 1961-1990

Annual mean temperature of the long-record stations in United States as a difference from each station's own 1961-1990 mean, 1951 to 2025. 2,488 stations in 66 grid cells of 5 by 5 degrees, area weighted. Years with too little coverage are left blank and the line or columns are not drawn across the gap; the earliest and latest years can rest on fewer of these stations than the middle years. The station set does not change from year to year. Zero line: each station's own 1961-1990 mean.

Annual mean temperature against the 1961-1990 mean, United States
Year	Difference from the 1961-1990 mean
1951	-0.25 C
1952	+0.16 C
1953	+0.73 C
1954	+0.43 C
1955	-0.26 C
1956	-0.20 C
1957	+0.31 C
1958	+0.10 C
1959	+0.08 C
1960	-0.09 C
1961	-0.09 C
1962	-0.01 C
1963	+0.15 C
1964	-0.26 C
1965	-0.21 C
1966	-0.33 C
1967	+0.03 C
1968	-0.27 C
1969	-0.08 C
1970	-0.16 C
1971	-0.38 C
1972	-0.46 C
1973	+0.10 C
1974	-0.01 C
1975	-0.37 C
1976	-0.34 C
1977	+0.33 C
1978	-0.10 C
1979	-0.20 C
1980	+0.20 C
1981	+0.71 C
1982	-0.25 C
1983	+0.14 C
1984	+0.08 C
1985	-0.26 C
1986	+0.59 C
1987	+0.61 C
1988	+0.28 C
1989	-0.08 C
1990	+0.65 C
1991	+0.57 C
1992	+0.10 C
1993	+0.01 C
1994	+0.34 C
1995	+0.41 C
1996	-0.11 C
1997	+0.21 C
1998	+1.06 C
1999	+0.49 C
2000	+0.51 C
2001	+0.64 C
2002	+0.65 C
2003	+0.60 C
2004	+0.57 C
2005	+0.77 C
2006	+0.86 C
2007	+0.66 C
2008	-0.08 C
2009	+0.04 C
2010	+0.38 C
2011	+0.47 C
2012	+1.04 C
2013	+0.22 C
2014	+0.48 C
2015	+1.24 C
2016	+1.63 C
2017	+1.18 C
2018	+0.93 C
2019	+0.66 C
2020	+1.11 C
2021	+1.04 C
2022	+0.72 C
2023	+1.20 C
2024	+1.67 C
2025	+1.24 C

From 1951 to 2025, the long-record stations in United States warmed by +0.17 C per decade (+0.30 F) (95 percent interval +0.11 to +0.22 C), from 2,488 stations in 66 grid cells of 5 by 5 degrees, each measured against its own 1961-1990 mean.

The latest year in the series, 2025, was +1.2 C (+2.2 F) against the 1961-1990 mean.

The five warmest years in the series are 2024 (+1.67 C), 2016 (+1.63 C), 2025 (+1.24 C), 2015 (+1.24 C) and 2023 (+1.20 C).

Trend

Warming trend per decade, United States
Measure	Trend per decade (C)	95% interval (C)	Years	Stations
Annual mean temperature	+0.17	+0.11 to +0.22	1951 to 2025	2,488

Warmest and coolest years in the series

Warmest and coolest years of the 1961-1990 anomaly series, United States
Rank	Warmest year	Difference from mean	Coolest year	Difference from mean
1	2024	+1.67 C	1972	-0.46 C
2	2016	+1.63 C	1971	-0.38 C
3	2025	+1.24 C	1975	-0.37 C
4	2015	+1.24 C	1976	-0.34 C
5	2023	+1.20 C	1966	-0.33 C

2,488 stations in 66 grid cells of 5 by 5 degrees. Each station is compared with its own 1961-1990 mean, so stations at different heights and latitudes can be averaged. Stations are averaged within each grid cell and cells are weighted by the cosine of latitude.

Warmest Years

United States, 4,025 stations

For each year 1870 to 2025, the number of the 4,025 stations in United States with at least 50 complete years of record that had it as their warmest year on record. A station counts once, so the bars add up to 4,025.

Stations that had each year as their warmest on record, United States
Year	Stations with this as their warmest year
1870	0
1871	0
1872	0
1873	0
1874	0
1875	0
1876	0
1877	0
1878	2
1879	1
1880	0
1881	0
1882	0
1883	0
1884	0
1885	0
1886	0
1887	0
1888	0
1889	0
1890	0
1891	0
1892	0
1893	0
1894	2
1895	0
1896	8
1897	1
1898	3
1899	0
1900	4
1901	2
1902	1
1903	0
1904	0
1905	0
1906	1
1907	1
1908	1
1909	0
1910	12
1911	29
1912	0
1913	7
1914	2
1915	2
1916	2
1917	2
1918	2
1919	2
1920	1
1921	282
1922	8
1923	0
1924	0
1925	7
1926	13
1927	47
1928	1
1929	0
1930	0
1931	294
1932	4
1933	69
1934	309
1935	1
1936	3
1937	0
1938	44
1939	25
1940	14
1941	15
1942	0
1943	5
1944	0
1945	2
1946	34
1947	0
1948	5
1949	76
1950	9
1951	1
1952	5
1953	65
1954	192
1955	1
1956	10
1957	5
1958	55
1959	13
1960	0
1961	0
1962	1
1963	14
1964	0
1965	2
1966	1
1967	2
1968	1
1969	1
1970	0
1971	0
1972	0
1973	3
1974	1
1975	4
1976	3
1977	1
1978	0
1979	0
1980	3
1981	41
1982	0
1983	2
1984	5
1985	0
1986	12
1987	185
1988	12
1989	7
1990	96
1991	10
1992	27
1993	1
1994	11
1995	4
1996	18
1997	9
1998	224
1999	31
2000	12
2001	12
2002	5
2003	30
2004	2
2005	4
2006	30
2007	20
2008	5
2009	2
2010	13
2011	11
2012	373
2013	3
2014	97
2015	122
2016	85
2017	67
2018	8
2019	52
2020	35
2021	31
2022	5
2023	89
2024	377
2025	101

Of the 4,025 stations in United States with at least 50 complete years of record, 377 (9.4%) had 2024 as their warmest year on record.

The years that were the warmest on record at the most stations are 2024 (377 stations), 2012 (373 stations), 1934 (309 stations), 1931 (294 stations) and 1921 (282 stations).

831 of the 4,025 stations (20.6%) had their warmest year in the 2010s.

By decade

Stations by the decade of their warmest year, United States
Decade	Stations with their warmest year in it	Share of stations	Stations with one of their five warmest years in it
1870s	3	0.1%	9
1880s	0	0.0%	11
1890s	14	0.3%	99
1900s	10	0.2%	120
1910s	60	1.5%	351
1920s	359	8.9%	1,249
1930s	749	18.6%	3,018
1940s	151	3.8%	1,139
1950s	356	8.8%	1,835
1960s	22	0.5%	269
1970s	12	0.3%	270
1980s	267	6.6%	1,345
1990s	431	10.7%	2,409
2000s	122	3.0%	1,254
2010s	831	20.6%	3,828
2020s (to date)	638	15.9%	2,919

The set is the 4,025 stations with at least 50 complete years (all twelve months with 20 or more days of maximum and minimum). A station's warmest year is the one with the highest annual mean temperature, a tie going to the later year. The count describes these stations, not the whole area.

Days and Nights

United States, against 1961-1990

Annual mean daily maximum, daily minimum and day-night range of the long-record stations in United States as differences from each station's own 1961-1990 mean, 1951 to 2025. 2,488 stations in 66 grid cells of 5 by 5 degrees, area weighted. The station set does not change from year to year.

Daily maximum, daily minimum and day-night range against the 1961-1990 mean, United States
Year	Daily maximum	Daily minimum	Day-night range (maximum minus minimum)
1951	-0.19 C	-0.30 C	+0.11 C
1952	+0.30 C	+0.01 C	+0.28 C
1953	+0.92 C	+0.54 C	+0.38 C
1954	+0.64 C	+0.22 C	+0.42 C
1955	-0.16 C	-0.37 C	+0.21 C
1956	+0.05 C	-0.45 C	+0.49 C
1957	+0.13 C	+0.49 C	-0.36 C
1958	+0.02 C	+0.18 C	-0.16 C
1959	+0.14 C	+0.03 C	+0.11 C
1960	-0.07 C	-0.11 C	+0.04 C
1961	-0.08 C	-0.10 C	+0.01 C
1962	+0.03 C	-0.05 C	+0.08 C
1963	+0.33 C	-0.03 C	+0.36 C
1964	-0.13 C	-0.40 C	+0.27 C
1965	-0.27 C	-0.15 C	-0.12 C
1966	-0.25 C	-0.41 C	+0.15 C
1967	+0.10 C	-0.03 C	+0.13 C
1968	-0.23 C	-0.31 C	+0.07 C
1969	-0.18 C	+0.01 C	-0.20 C
1970	-0.16 C	-0.16 C	0.00 C
1971	-0.37 C	-0.39 C	+0.02 C
1972	-0.51 C	-0.41 C	-0.10 C
1973	-0.06 C	+0.27 C	-0.33 C
1974	+0.05 C	-0.07 C	+0.12 C
1975	-0.43 C	-0.31 C	-0.12 C
1976	-0.06 C	-0.63 C	+0.57 C
1977	+0.36 C	+0.29 C	+0.07 C
1978	-0.18 C	-0.03 C	-0.15 C
1979	-0.25 C	-0.14 C	-0.11 C
1980	+0.23 C	+0.16 C	+0.07 C
1981	+0.71 C	+0.71 C	0.00 C
1982	-0.43 C	-0.07 C	-0.35 C
1983	-0.14 C	+0.42 C	-0.57 C
1984	-0.03 C	+0.19 C	-0.22 C
1985	-0.34 C	-0.18 C	-0.16 C
1986	+0.46 C	+0.71 C	-0.25 C
1987	+0.63 C	+0.59 C	+0.05 C
1988	+0.49 C	+0.07 C	+0.42 C
1989	-0.02 C	-0.15 C	+0.14 C
1990	+0.71 C	+0.60 C	+0.11 C
1991	+0.43 C	+0.71 C	-0.28 C
1992	-0.08 C	+0.29 C	-0.37 C
1993	-0.21 C	+0.22 C	-0.42 C
1994	+0.27 C	+0.40 C	-0.13 C
1995	+0.26 C	+0.56 C	-0.30 C
1996	-0.19 C	-0.03 C	-0.16 C
1997	+0.02 C	+0.40 C	-0.39 C
1998	+0.71 C	+1.40 C	-0.69 C
1999	+0.54 C	+0.43 C	+0.11 C
2000	+0.42 C	+0.61 C	-0.19 C
2001	+0.52 C	+0.76 C	-0.24 C
2002	+0.54 C	+0.76 C	-0.22 C
2003	+0.45 C	+0.74 C	-0.30 C
2004	+0.29 C	+0.84 C	-0.55 C
2005	+0.61 C	+0.93 C	-0.32 C
2006	+0.80 C	+0.92 C	-0.11 C
2007	+0.56 C	+0.76 C	-0.20 C
2008	-0.13 C	-0.04 C	-0.09 C
2009	-0.13 C	+0.22 C	-0.35 C
2010	+0.08 C	+0.69 C	-0.61 C
2011	+0.33 C	+0.62 C	-0.29 C
2012	+1.04 C	+1.05 C	-0.01 C
2013	-0.03 C	+0.47 C	-0.50 C
2014	+0.28 C	+0.68 C	-0.40 C
2015	+0.98 C	+1.49 C	-0.51 C
2016	+1.40 C	+1.86 C	-0.46 C
2017	+0.98 C	+1.39 C	-0.41 C
2018	+0.58 C	+1.27 C	-0.69 C
2019	+0.28 C	+1.03 C	-0.75 C
2020	+0.97 C	+1.25 C	-0.28 C
2021	+0.84 C	+1.23 C	-0.39 C
2022	+0.69 C	+0.76 C	-0.07 C
2023	+0.93 C	+1.47 C	-0.54 C
2024	+1.43 C	+1.91 C	-0.49 C
2025	+1.06 C	+1.41 C	-0.34 C

From 1951 to 2025, the daily maximum in United States changed by +0.12 C per decade (+0.21 F) (95 percent interval +0.06 to +0.18 C) and the daily minimum by +0.21 C per decade (+0.38 F) (95 percent interval +0.16 to +0.27 C), from 2,488 stations.

The daily minimum rose faster, by 0.09 C per decade more than the daily maximum; the two intervals overlap, so the data do not separate them.

The day-night range (daily maximum minus daily minimum) changed by -0.09 C per decade (95 percent interval -0.12 to -0.06 C), which means the range narrowed.

Trends per decade

Trends in the daily maximum, the daily minimum and the day-night range, United States
Measure	Trend per decade (C)	95% interval (C)	Years	Stations
Daily maximum	+0.12	+0.06 to +0.18	1951 to 2025	2,488
Daily minimum	+0.21	+0.16 to +0.27	1951 to 2025	2,488
Day-night range (maximum minus minimum)	-0.09	-0.12 to -0.06	1951 to 2025	2,488

The day-night range is the daily maximum minus the daily minimum, so a falling range means the minimum rose by more than the maximum. Intervals allow for year to year persistence in the series.

Hot Days, Warm Nights and Frost Days by Decade: United States

Up to 1,709 stations per measure, fixed sets

In United States, the mean number of days with a daily maximum at or above 30 C (86 F) per year at 1,709 stations rose from 60.0 to 65.2 between the 1960s and the 2010s; the 2020s so far (6 years) average 67.7.
In United States, the mean number of days with a daily maximum at or above 35 C (95 F) per year at 1,709 stations rose from 12.8 to 15.5 between the 1960s and the 2010s; the 2020s so far (6 years) average 16.7.
In United States, the mean number of days with a daily maximum at or above 40 C (104 F) per year at 1,709 stations rose from 1.2 to 1.7 between the 1960s and the 2010s; the 2020s so far (6 years) average 2.2.
In United States, the mean number of warm nights, with a daily minimum at or above 20 C (68 F) per year at 1,653 stations rose from 23.9 to 33.5 between the 1960s and the 2010s; the 2020s so far (6 years) average 33.6.
In United States, the mean number of frost days, with a daily minimum at or below 0 C (32 F) per year at 1,653 stations fell from 125.3 to 116.4 between the 1960s and the 2010s; the 2020s so far (6 years) average 113.6.
In United States, the mean number of ice days, with a daily maximum at or below 0 C (32 F) per year at 1,709 stations fell from 32.2 to 31.2 between the 1960s and the 2010s; the 2020s so far (6 years) average 26.1.

Days at or above 30 C

Mean days with a daily maximum at or above 30 C (86 F) per year, by decade (1960s to 2020s), United States. The same 1,709 stations are in every decade: each has complete years in every decade from the 1960s, so a change in the station mix cannot move the bars. The 2020s are not over: 6 years so far.

Days at or above 35 C

Mean days with a daily maximum at or above 35 C (95 F) per year, by decade (1960s to 2020s), United States. The same 1,709 stations are in every decade: each has complete years in every decade from the 1960s, so a change in the station mix cannot move the bars. The 2020s are not over: 6 years so far.

Days at or above 40 C

Mean days with a daily maximum at or above 40 C (104 F) per year, by decade (1960s to 2020s), United States. The same 1,709 stations are in every decade: each has complete years in every decade from the 1960s, so a change in the station mix cannot move the bars. The 2020s are not over: 6 years so far.

Tropical nights (min at or above 20 C)

Mean warm nights, with a daily minimum at or above 20 C (68 F) per year, by decade (1960s to 2020s), United States. The same 1,653 stations are in every decade: each has complete years in every decade from the 1960s, so a change in the station mix cannot move the bars. The 2020s are not over: 6 years so far.

Frost days (min at or below 0 C)

Mean frost days, with a daily minimum at or below 0 C (32 F) per year, by decade (1960s to 2020s), United States. The same 1,653 stations are in every decade: each has complete years in every decade from the 1960s, so a change in the station mix cannot move the bars. The 2020s are not over: 6 years so far.

Ice days (max at or below 0 C)

Mean ice days, with a daily maximum at or below 0 C (32 F) per year, by decade (1960s to 2020s), United States. The same 1,709 stations are in every decade: each has complete years in every decade from the 1960s, so a change in the station mix cannot move the bars. The 2020s are not over: 6 years so far.

Each measure counts days in complete years only. A station is in a measure's set when it has complete years in every decade from the 1960s, so each chart compares the same places over time. A grey bar is a decade that is not over.

Heavy Rain and Dry Spells by Decade: United States

3,610 stations in the annual rain series

In United States, annual rain at 3,610 stations is shown as a percent difference from each station's own 1961-1990 mean, for 75 years from 1951 to 2025.
The trend in annual rain is +1.4 percent per decade (95 percent interval +0.5 to +2.3), fitted to 75 years from 1951 to 2025.
In United States, the share of a year's rain that fell in its wettest five days fell from 13.7 to 13.5 percent between the 1960s and the 2020s at 2,306 stations.
In United States, the mean number of days with 25 mm (1.0 in) or more of rain per year rose from 7.59 to 8.41 between the 1960s and the 2020s.
In United States, the mean number of days with 50 mm (2.0 in) or more of rain per year rose from 1.57 to 1.83 between the 1960s and the 2020s.
In United States, the mean number of days with 100 mm (3.9 in) or more of rain per year rose from 0.15 to 0.17 between the 1960s and the 2020s.
In United States, the mean longest dry spell of the year, in days with less than 1 mm of rain in a row, rose from 35.3 to 36.8 days between the 1960s and the 2020s, over the same 2,306 stations in every decade.

Annual rain against the 1961-1990 mean

Annual rain in United States as a percent difference from each station's own 1961-1990 mean, for 3,610 stations with a long record, 1951 to 2025. Stations are averaged in 5 degree grid cells and the cells are weighted by the cosine of latitude.

Annual rain as a percent difference from the 1961-1990 mean, United States
Year	Annual rain, percent difference from the mean
1951	2.7%
1952	-6.5%
1953	-12.4%
1954	-8.9%
1955	-8.0%
1956	-18.6%
1957	4.8%
1958	1.8%
1959	-2.6%
1960	-4.6%
1961	-2.4%
1962	-6.8%
1963	-5.2%
1964	-5.3%
1965	4.8%
1966	-9.8%
1967	1.2%
1968	-2.8%
1969	3.8%
1970	-2.9%
1971	-2.1%
1972	0.0%
1973	7.4%
1974	-4.0%
1975	0.3%
1976	-11.7%
1977	-2.8%
1978	7.7%
1979	5.0%
1980	-1.3%
1981	0.5%
1982	12.5%
1983	16.9%
1984	-0.5%
1985	0.4%
1986	7.0%
1987	0.5%
1988	-10.8%
1989	-5.5%
1990	5.0%
1991	8.7%
1992	6.0%
1993	11.2%
1994	2.3%
1995	7.4%
1996	8.6%
1997	4.8%
1998	16.1%
1999	-4.3%
2000	-0.7%
2001	-4.3%
2002	-5.2%
2003	-0.9%
2004	11.0%
2005	8.3%
2006	0.7%
2007	-3.1%
2008	2.5%
2009	0.4%
2010	9.0%
2011	-0.6%
2012	-7.7%
2013	1.8%
2014	3.9%
2015	11.4%
2016	7.5%
2017	8.9%
2018	13.1%
2019	18.8%
2020	-4.3%
2021	1.5%
2022	-2.8%
2023	7.5%
2024	4.8%
2025	-0.7%

Share of the year's rain in its wettest five days

Mean share of a year's rain that fell in its wettest five days, by decade, United States, 1960s to 2020s, for 2,306 stations that report complete years in every decade.

Days with 25 mm or more rain

Mean number of days with 25 mm (1.0 in) or more of rain per year, by decade, United States, 1960s to 2020s, for a fixed set of stations that report complete years in every decade.

Days with 50 mm or more rain

Mean number of days with 50 mm (2.0 in) or more of rain per year, by decade, United States, 1960s to 2020s, for a fixed set of stations that report complete years in every decade.

Days with 100 mm or more rain

Mean number of days with 100 mm (3.9 in) or more of rain per year, by decade, United States, 1960s to 2020s, for a fixed set of stations that report complete years in every decade.

Longest dry spell of the year

Mean length in days of the longest run of days with less than 1 mm of rain in a year, by decade, United States, 1960s to 2020s, over the same 2,306 stations in every decade.

The annual rain series uses stations with at least 50 complete years since 1951 and a 1961-1990 baseline. The decade charts use fixed sets of stations, the same in every decade from the 1960s. A dry day has less than 1 mm (0.04 in) of rain.

The New Normal

United States, 1961-1990 against 2011-2025

Change in annual mean temperature from 1961-1990 to 2011-2025 at 600 stations in United States, one dot per station (the stations with the most complete years, at most one per half degree cell). The scope figures use 2,140 stations with at least 20 complete years in 1961-1990 and in 1991-2020 and at least 8 in 2011-2025. Made with Natural Earth.

Change in annual mean temperature from 1961-1990 to 2011-2025, United States
Station	Change in mean temperature
Barrow AP	+3.8 C (+6.8 F)
Hermit 8 SE	+2.6 C (+4.6 F)
Nevada City	+2.0 C (+3.6 F)
Hartford Brainard Fld	+2.0 C (+3.6 F)
Woodstock	+2.0 C (+3.6 F)
Hanover	+1.9 C (+3.4 F)
Bethel AP	+1.9 C (+3.4 F)
First Connecticut Lake	+1.9 C (+3.4 F)
Blanding	+1.9 C (+3.4 F)
Talkeetna AP	+1.9 C (+3.4 F)
Milan 1NW	+1.9 C (+3.4 F)
Cheesman	+1.9 C (+3.4 F)
Hanford 1 S	+1.9 C (+3.3 F)
Traverse Cy Cherry Capital AP	+1.8 C (+3.2 F)
Erie Intl AP	+1.8 C (+3.2 F)
Charlotteburg Rsvr	+1.8 C (+3.2 F)
Dubois Exp STN	+1.8 C (+3.2 F)
Elkins- Randolph Co AP	+1.8 C (+3.2 F)
Lemmon	+1.8 C (+3.2 F)
Riddle	+1.7 C (+3.1 F)
Greenville Wtp	+1.7 C (+3.1 F)
Lumberton	+1.7 C (+3.1 F)
Clarksville Wwtp	+1.7 C (+3.1 F)
Gravette	+1.7 C (+3.0 F)
Davis 2 WSW Exp Farm	+1.7 C (+3.0 F)
Kingston	+1.7 C (+3.0 F)
Bowling Green Warren Co AP	+1.7 C (+3.0 F)
Bucyrus	+1.7 C (+3.0 F)
Valley Head	+1.6 C (+3.0 F)
Muskegon Co AP	+1.6 C (+3.0 F)
Winnebago	+1.6 C (+2.9 F)
Norris Madison Pwr House	+1.6 C (+2.9 F)
Nome AP	+1.6 C (+2.9 F)
University	+1.6 C (+2.9 F)
Oswego	+1.6 C (+2.9 F)
Ridgway	+1.6 C (+2.8 F)
Pasadena	+1.6 C (+2.8 F)
Storm Lake	+1.6 C (+2.8 F)
Farmington	+1.6 C (+2.8 F)
Mohonk Lake	+1.6 C (+2.8 F)
Defiance	+1.5 C (+2.8 F)
Gillette 3SE	+1.5 C (+2.8 F)
Marysville	+1.5 C (+2.7 F)
Lakin	+1.5 C (+2.7 F)
Newport 1 NW	+1.5 C (+2.7 F)
Salem AP (McNary Field)	+1.5 C (+2.7 F)
Decorah	+1.5 C (+2.7 F)
Deseret	+1.5 C (+2.7 F)
Green Bay	+1.5 C (+2.7 F)
Willcox	+1.5 C (+2.7 F)
Lemon Cove	+1.5 C (+2.7 F)
Orland	+1.5 C (+2.7 F)
Paulding	+1.5 C (+2.7 F)
Ft Collins	+1.5 C (+2.7 F)
Fairmont	+1.5 C (+2.7 F)
Alton	+1.5 C (+2.6 F)
Tombstone	+1.5 C (+2.6 F)
Montrose #2	+1.5 C (+2.6 F)
Hemlock	+1.5 C (+2.6 F)
Louisburg	+1.5 C (+2.6 F)
Prescott	+1.4 C (+2.6 F)
Blue Hill Coop	+1.4 C (+2.6 F)
Findlay Wpcc	+1.4 C (+2.6 F)
Rochester	+1.4 C (+2.6 F)
San Angelo	+1.4 C (+2.5 F)
Clayton Muni Air Pk	+1.4 C (+2.5 F)
Santa Cruz	+1.4 C (+2.5 F)
Charleston	+1.4 C (+2.5 F)
Oakland 1 SE	+1.4 C (+2.5 F)
Cornelia	+1.4 C (+2.5 F)
Gardiner	+1.4 C (+2.5 F)
State College	+1.4 C (+2.5 F)
Mc Minnville	+1.4 C (+2.5 F)
Chanute Martin Johnson AP	+1.4 C (+2.5 F)
Fremont	+1.4 C (+2.5 F)
Greensboro AP	+1.4 C (+2.5 F)
Asheville	+1.4 C (+2.5 F)
Saginaw Mbs Intl AP	+1.4 C (+2.5 F)
Norwalk Wwtp	+1.4 C (+2.4 F)
Winslow AP	+1.4 C (+2.4 F)
Livermore	+1.4 C (+2.4 F)
Farmland 5 NNW	+1.4 C (+2.4 F)
Raleigh State UNIV	+1.4 C (+2.4 F)
Spokane Intl AP	+1.4 C (+2.4 F)
Chapel Hill 2 W	+1.3 C (+2.4 F)
Columbus	+1.3 C (+2.4 F)
Lawrence	+1.3 C (+2.4 F)
Urbana Wrf	+1.3 C (+2.4 F)
Glenville	+1.3 C (+2.4 F)
University Exp STN	+1.3 C (+2.4 F)
Lafayette Rgnl AP	+1.3 C (+2.4 F)
Alpena Co Rgnl AP	+1.3 C (+2.4 F)
Paris	+1.3 C (+2.3 F)
Levan	+1.3 C (+2.3 F)
Saint Johnsbury	+1.3 C (+2.3 F)
Atlantic City Marina	+1.3 C (+2.3 F)
Steamboat Springs	+1.3 C (+2.3 F)
1 ENE Fairfield	+1.3 C (+2.3 F)
Waynesboro	+1.3 C (+2.3 F)
Hallettsville 2 N	+1.3 C (+2.3 F)
Cape May 2 NW	+1.3 C (+2.3 F)
Hobart Muni AP	+1.3 C (+2.3 F)
Parkersburg	+1.3 C (+2.3 F)
Elko Rgnl AP	+1.3 C (+2.3 F)
Payette	+1.3 C (+2.3 F)
Boerne	+1.3 C (+2.3 F)
Newark Liberty Intl AP	+1.3 C (+2.3 F)
Lexington Bluegrass AP	+1.3 C (+2.3 F)
Cuyamaca	+1.3 C (+2.3 F)
Durham	+1.3 C (+2.3 F)
Waseca S Rsch & Outreach Ctr	+1.2 C (+2.2 F)
Clemson UNIV	+1.2 C (+2.2 F)
Llano	+1.2 C (+2.2 F)
Rochester Intl AP	+1.2 C (+2.2 F)
Concordia ASOS	+1.2 C (+2.2 F)
Santa Rosa	+1.2 C (+2.2 F)
Rome	+1.2 C (+2.2 F)
Salem	+1.2 C (+2.2 F)
Duchesne	+1.2 C (+2.2 F)
Oshkosh	+1.2 C (+2.2 F)
Flemington 5 NNW	+1.2 C (+2.2 F)
Luling	+1.2 C (+2.2 F)
Knoxville AP	+1.2 C (+2.2 F)
Saint Paul Is AP	+1.2 C (+2.2 F)
Mt Carroll	+1.2 C (+2.1 F)
Clinton #1	+1.2 C (+2.1 F)
Coldwater	+1.2 C (+2.1 F)
Culbertson	+1.2 C (+2.1 F)
Tooele	+1.2 C (+2.1 F)
Rochester Gtr Intl	+1.2 C (+2.1 F)
Indian Lake 2SW	+1.2 C (+2.1 F)
Drain	+1.2 C (+2.1 F)
Spanish Fk Pwr House	+1.2 C (+2.1 F)
Ft Myers Page Fld AP	+1.2 C (+2.1 F)
Dwtn Charleston	+1.2 C (+2.1 F)
Waverly	+1.2 C (+2.1 F)
Basin	+1.2 C (+2.1 F)
Pembina	+1.2 C (+2.1 F)
Gainesville	+1.2 C (+2.1 F)
Angelica	+1.2 C (+2.1 F)
Scipio	+1.2 C (+2.1 F)
Mt Vernon	+1.1 C (+2.1 F)
Hood Rvr Exp STN	+1.1 C (+2.1 F)
Jackson Exp STN	+1.1 C (+2.1 F)
Artesia 6S	+1.1 C (+2.0 F)
Brookings 2 NE	+1.1 C (+2.0 F)
Crosbyton	+1.1 C (+2.0 F)
Lufkin Angelina Co AP	+1.1 C (+2.0 F)
Ft Bidwell	+1.1 C (+2.0 F)
Yreka	+1.1 C (+2.0 F)
Mora	+1.1 C (+2.0 F)
Springfield Abraham Lincoln Ca	+1.1 C (+2.0 F)
Anderson 1 N	+1.1 C (+2.0 F)
Rushville	+1.1 C (+2.0 F)
Cedar Rapids #1	+1.1 C (+2.0 F)
Hagerstown 1E	+1.1 C (+2.0 F)
Cordova AP	+1.1 C (+1.9 F)
Jacksonville 2E	+1.1 C (+1.9 F)
Minonk	+1.1 C (+1.9 F)
Pine Rvr Dam	+1.1 C (+1.9 F)
Pipestone	+1.1 C (+1.9 F)
Wooster Exp STN	+1.1 C (+1.9 F)
Burlington Muni AP	+1.1 C (+1.9 F)
Cheyenne	+1.1 C (+1.9 F)
Indian Mills 2 W	+1.1 C (+1.9 F)
Trinidad	+1.0 C (+1.9 F)
Cambridge	+1.0 C (+1.9 F)
Lead	+1.0 C (+1.9 F)
Hillsboro	+1.0 C (+1.9 F)
Napa State Hospital	+1.0 C (+1.8 F)
Cheyenne Wells 2NE	+1.0 C (+1.8 F)
Whitestown	+1.0 C (+1.8 F)
Bend	+1.0 C (+1.8 F)
Lewisburg Exp STN	+1.0 C (+1.8 F)
Oakley	+1.0 C (+1.8 F)
Wallowa	+1.0 C (+1.8 F)
Corsicana	+1.0 C (+1.8 F)
Wakeeney	+1.0 C (+1.8 F)
Savage	+1.0 C (+1.8 F)
Winthrop UNIV	+1.0 C (+1.8 F)
Brodhead Wwtp	+1.0 C (+1.8 F)
Aurora Water	+1.0 C (+1.8 F)
Kokomo 3 WSW	+1.0 C (+1.8 F)
Ashland	+1.0 C (+1.8 F)
Ny City Cntrl Park	+1.0 C (+1.8 F)
Scottsbluff W B Heilig Fld AP	+1.0 C (+1.8 F)
Tarpon Spgs Sewage Plt	+1.0 C (+1.7 F)
Albany 3 SE	+1.0 C (+1.7 F)
W Lafayette 6 NW	+1.0 C (+1.7 F)
Tracy	+1.0 C (+1.7 F)
Norwich	+1.0 C (+1.7 F)
Martinsburg E W Virginia Rgnl	+1.0 C (+1.7 F)
Rosalia	+1.0 C (+1.7 F)
Fallon Exp STN	+1.0 C (+1.7 F)
Franklin	+1.0 C (+1.7 F)
Santuck	+1.0 C (+1.7 F)
Bartow 1SE	+0.9 C (+1.7 F)
Culbertson	+0.9 C (+1.7 F)
Elmira	+0.9 C (+1.7 F)
Plainview	+0.9 C (+1.7 F)
Madison	+0.9 C (+1.7 F)
Sacramento 5 ESE	+0.9 C (+1.7 F)
Alexandria	+0.9 C (+1.7 F)
State UNIV	+0.9 C (+1.7 F)
Cheraw	+0.9 C (+1.7 F)
Beeville 5 NE	+0.9 C (+1.7 F)
Wichita Falls Muni AP	+0.9 C (+1.7 F)
Goodland	+0.9 C (+1.7 F)
Dover	+0.9 C (+1.6 F)
Conception	+0.9 C (+1.6 F)
Winnemucca AP	+0.9 C (+1.6 F)
Du Quoin 4 SE	+0.9 C (+1.6 F)
Owosso Wwtp	+0.9 C (+1.6 F)
Fayetteville (Pwc)	+0.9 C (+1.6 F)
Marshall	+0.9 C (+1.6 F)
Logan Utah St UNIV	+0.9 C (+1.6 F)
Clayton 1 SSW	+0.9 C (+1.6 F)
Minden	+0.9 C (+1.6 F)
Columbia	+0.9 C (+1.6 F)
Lamar 7N	+0.9 C (+1.6 F)
Hightstown 2 W	+0.9 C (+1.6 F)
Tucumcari 4 NE	+0.9 C (+1.6 F)
Union City	+0.9 C (+1.6 F)
Berlin	+0.9 C (+1.6 F)
Kennewick	+0.9 C (+1.6 F)
Merrill	+0.9 C (+1.6 F)
Eastman 1 W	+0.9 C (+1.6 F)
Neosho	+0.9 C (+1.6 F)
Alfred	+0.9 C (+1.6 F)
Watertown	+0.9 C (+1.6 F)
Cullowhee	+0.9 C (+1.6 F)
Worland	+0.9 C (+1.6 F)
Huron Rgnl AP	+0.9 C (+1.6 F)
Butte Bert Mooney AP	+0.9 C (+1.6 F)
Colfax	+0.9 C (+1.5 F)
Angola	+0.9 C (+1.5 F)
Marion 2 N	+0.9 C (+1.5 F)
Morris W Cntrl Rsch & Outreach	+0.9 C (+1.5 F)
Zion Np	+0.9 C (+1.5 F)
Ocala	+0.9 C (+1.5 F)
Coldwater St School	+0.9 C (+1.5 F)
Iron Mtn-Kingsford Wwtp	+0.9 C (+1.5 F)
Chama	+0.9 C (+1.5 F)
Monroe 2 SE	+0.9 C (+1.5 F)
Clearbrook	+0.9 C (+1.5 F)
Lake City Exp Farm	+0.8 C (+1.5 F)
Genoa 2 W	+0.8 C (+1.5 F)
McGill	+0.8 C (+1.5 F)
Grand Coteau	+0.8 C (+1.5 F)
Collegeville St John's	+0.8 C (+1.5 F)
Grand Rapids Forestry Lab	+0.8 C (+1.5 F)
Hope 3 NE	+0.8 C (+1.5 F)
Hoopeston	+0.8 C (+1.5 F)
Hays 1 S	+0.8 C (+1.5 F)
Bridgeport	+0.8 C (+1.5 F)
Aberdeen Exp STN	+0.8 C (+1.5 F)
Dannemora	+0.8 C (+1.5 F)
Ballinger 2 NW	+0.8 C (+1.5 F)
Buckhannon	+0.8 C (+1.5 F)
Greenfield	+0.8 C (+1.4 F)
Fairbury 7S	+0.8 C (+1.4 F)
Geneva	+0.8 C (+1.4 F)
Ithaca Cornell UNIV	+0.8 C (+1.4 F)
Yemassee 1 N	+0.8 C (+1.4 F)
Menno	+0.8 C (+1.4 F)
Manti	+0.8 C (+1.4 F)
Kentfield	+0.8 C (+1.4 F)
Priest Rvr Exp STN	+0.8 C (+1.4 F)
Sedan	+0.8 C (+1.4 F)
Hattiesburg 5SW	+0.8 C (+1.4 F)
Kearney 4 NE	+0.8 C (+1.4 F)
Harbor Beach 1 SSE	+0.8 C (+1.4 F)
Bottineau	+0.8 C (+1.4 F)
Louisa	+0.8 C (+1.4 F)
Hillsboro	+0.8 C (+1.4 F)
Champaign 3S	+0.8 C (+1.4 F)
Goshen 3SW	+0.8 C (+1.4 F)
Oolitic Purdue Ex Fm	+0.8 C (+1.4 F)
Albert Lea 3SE	+0.8 C (+1.4 F)
Racine Wwtp	+0.8 C (+1.4 F)
Ellensburg	+0.8 C (+1.4 F)
Oconto 4 W	+0.8 C (+1.4 F)
Texarkana Webb Fld	+0.8 C (+1.4 F)
S Bend AP	+0.8 C (+1.4 F)
Guthrie Ctr	+0.8 C (+1.4 F)
Coleman	+0.8 C (+1.4 F)
Franklin 3 NW	+0.7 C (+1.3 F)
Kalispell Glacier AP	+0.7 C (+1.3 F)
Gothenburg	+0.7 C (+1.3 F)
Wauseon Wtp	+0.7 C (+1.3 F)
Neillsville 3ESE	+0.7 C (+1.3 F)
Washington 1 W	+0.7 C (+1.3 F)
Ekalaka	+0.7 C (+1.3 F)
Red Lodge	+0.7 C (+1.3 F)
Columbus 3 NE	+0.7 C (+1.3 F)
Portage Wwtp	+0.7 C (+1.3 F)
Gunnison 3SW	+0.7 C (+1.3 F)
Milaca	+0.7 C (+1.3 F)
Ainsworth	+0.7 C (+1.3 F)
Cody	+0.7 C (+1.3 F)
Marianna 2 S	+0.7 C (+1.3 F)
Carroll	+0.7 C (+1.3 F)
E Tawas	+0.7 C (+1.3 F)
Lebanon 2W	+0.7 C (+1.3 F)
Lowville	+0.7 C (+1.3 F)
Medford	+0.7 C (+1.3 F)
El Dorado Goodwin Fld	+0.7 C (+1.3 F)
Paso Robles	+0.7 C (+1.3 F)
Jennings	+0.7 C (+1.3 F)
Sherman	+0.7 C (+1.3 F)
Atlantic 1 NE	+0.7 C (+1.2 F)
Pocahontas	+0.7 C (+1.2 F)
Big Rapids Wtp	+0.7 C (+1.2 F)
Lima Wwtp	+0.7 C (+1.2 F)
Laketown	+0.7 C (+1.2 F)
Manitowoc	+0.7 C (+1.2 F)
Grand Junction Walker Fld	+0.7 C (+1.2 F)
Park Rapids Muni AP	+0.7 C (+1.2 F)
Dardanelle	+0.7 C (+1.2 F)
Albemarle	+0.7 C (+1.2 F)
Salisbury	+0.7 C (+1.2 F)
Moab	+0.7 C (+1.2 F)
Ketchikan AP	+0.7 C (+1.2 F)
Williams	+0.7 C (+1.2 F)
Healy	+0.7 C (+1.2 F)
Towanda 1 S	+0.7 C (+1.2 F)
Warren	+0.7 C (+1.2 F)
Little Mtn	+0.7 C (+1.2 F)
Dickson	+0.7 C (+1.2 F)
Watertown Rgnl AP	+0.7 C (+1.2 F)
Cut Bank AP	+0.7 C (+1.2 F)
Hillsboro	+0.7 C (+1.2 F)
Centerville 6 SE	+0.7 C (+1.2 F)
Odessa	+0.7 C (+1.2 F)
Ritzville 1 SSE	+0.7 C (+1.2 F)
Redwood Falls Muni AP	+0.7 C (+1.2 F)
Denton 2 SE	+0.6 C (+1.2 F)
Aberdeen	+0.6 C (+1.2 F)
Lewistown AP	+0.6 C (+1.2 F)
Tahoe City	+0.6 C (+1.1 F)
Amherst	+0.6 C (+1.1 F)
Grayling	+0.6 C (+1.1 F)
Brooklet 1 W	+0.6 C (+1.1 F)
Edenton	+0.6 C (+1.1 F)
Minot Exp STN	+0.6 C (+1.1 F)
Newell	+0.6 C (+1.1 F)
Cave Run Lake	+0.6 C (+1.1 F)
Two Harbors	+0.6 C (+1.1 F)
Murfreesboro 5 N	+0.6 C (+1.1 F)
Wellington	+0.6 C (+1.1 F)
Tryon	+0.6 C (+1.1 F)
Moro	+0.6 C (+1.1 F)
Rogersville 1 NE	+0.6 C (+1.0 F)
Brenham	+0.6 C (+1.0 F)
Kennebec	+0.6 C (+1.0 F)
Bolivar Wtr Wks	+0.6 C (+1.0 F)
Weatherford	+0.6 C (+1.0 F)
Seward AP	+0.6 C (+1.0 F)
Cherokee	+0.6 C (+1.0 F)
Rock Rapids	+0.6 C (+1.0 F)
Tullahoma	+0.6 C (+1.0 F)
Marshfield Exp Farm	+0.6 C (+1.0 F)
Toledo 3N	+0.6 C (+1.0 F)
Ann Arbor U of Mich	+0.6 C (+1.0 F)
Williston Sloulin Fld	+0.6 C (+1.0 F)
Talladega	+0.5 C (+1.0 F)
Estherville 4E	+0.5 C (+1.0 F)
Pollock	+0.5 C (+1.0 F)
Bozeman Montana State UNIV	+0.5 C (+1.0 F)
Tarboro 1 S	+0.5 C (+1.0 F)
Hot Springs	+0.5 C (+1.0 F)
Lancaster 4 WSW	+0.5 C (+1.0 F)
Winamac 2SSE	+0.5 C (+0.9 F)
Hastings	+0.5 C (+0.9 F)
Manistee 3SE	+0.5 C (+0.9 F)
Las Animas	+0.5 C (+0.9 F)
Donaldsonville 4 SW	+0.5 C (+0.9 F)
W Branch 3SE	+0.5 C (+0.9 F)
Circleville	+0.5 C (+0.9 F)
Lake City 2 E	+0.5 C (+0.9 F)
Belle Plaine	+0.5 C (+0.9 F)
Cheboygan	+0.5 C (+0.9 F)
Warren 3 S	+0.5 C (+0.9 F)
Sedro-Woolley	+0.5 C (+0.9 F)
Portsmouth-Sciotoville	+0.5 C (+0.9 F)
Hot Springs	+0.5 C (+0.8 F)
Newcastle	+0.5 C (+0.8 F)
Dillon 1 E	+0.5 C (+0.8 F)
Moscow U of I	+0.5 C (+0.8 F)
Elkhart	+0.5 C (+0.8 F)
Independence	+0.5 C (+0.8 F)
Hancock Exp Farm	+0.5 C (+0.8 F)
Waterdale	+0.5 C (+0.8 F)
Flatonia 4SE	+0.5 C (+0.8 F)
Holly	+0.4 C (+0.8 F)
W Pt	+0.4 C (+0.8 F)
Fullerton 1 ESE	+0.4 C (+0.8 F)
Aberdeen	+0.4 C (+0.8 F)
Concrete Ppl Fish STN	+0.4 C (+0.8 F)
Shawano 2SSW	+0.4 C (+0.8 F)
Decatur Wtp	+0.4 C (+0.8 F)
Spooner Ag Rsch STN	+0.4 C (+0.8 F)
El Dorado	+0.4 C (+0.8 F)
Oshkosh	+0.4 C (+0.8 F)
San Francisco Dwtn	+0.4 C (+0.8 F)
Bloomington Indiana UNIV	+0.4 C (+0.7 F)
Mason City	+0.4 C (+0.7 F)
Cooperstown	+0.4 C (+0.7 F)
Cottonwood 2 E	+0.4 C (+0.7 F)
Brownsville	+0.4 C (+0.7 F)
Cornwall	+0.4 C (+0.7 F)
Waupaca	+0.4 C (+0.7 F)
Steffenville	+0.4 C (+0.7 F)
Ashley	+0.4 C (+0.7 F)
Vermillion 2 SE	+0.4 C (+0.7 F)
Wytheville	+0.4 C (+0.7 F)
Merced	+0.4 C (+0.7 F)
Heppner	+0.4 C (+0.7 F)
Hastings 4N	+0.4 C (+0.7 F)
Hebron	+0.4 C (+0.7 F)
Tecumseh 1S	+0.4 C (+0.7 F)
Hayes Center 1NW	+0.4 C (+0.7 F)
Monmouth	+0.4 C (+0.7 F)
Hamilton	+0.4 C (+0.7 F)
Pine Bluff	+0.4 C (+0.6 F)
Rocky Ford 2 SE	+0.4 C (+0.6 F)
Saint Leo	+0.4 C (+0.6 F)
Dale Enterprise	+0.4 C (+0.6 F)
Camden 1	+0.4 C (+0.6 F)
Searcy	+0.4 C (+0.6 F)
Columbus	+0.4 C (+0.6 F)
Cloquet	+0.4 C (+0.6 F)
Forks 1 E	+0.4 C (+0.6 F)
Pendleton	+0.4 C (+0.6 F)
Rockville	+0.3 C (+0.6 F)
Sanborn	+0.3 C (+0.6 F)
Ironwood	+0.3 C (+0.6 F)
Zumbrota	+0.3 C (+0.6 F)
N Bend SW Oregon Rgnl AP	+0.3 C (+0.6 F)
Greenville 2 NNE	+0.3 C (+0.6 F)
Grand Forks UNIV (NWS)	+0.3 C (+0.6 F)
Stevens Pt	+0.3 C (+0.6 F)
Sturgeon Bay Exp Farm	+0.3 C (+0.6 F)
Boulder	+0.3 C (+0.6 F)
Crete 4ESE	+0.3 C (+0.6 F)
Waynesville 1 E	+0.3 C (+0.6 F)
Lincoln	+0.3 C (+0.6 F)
Walnut	+0.3 C (+0.6 F)
Morganton	+0.3 C (+0.6 F)
Selma	+0.3 C (+0.5 F)
Lifton Pumping STN	+0.3 C (+0.5 F)
Dillon U of Montana Western	+0.3 C (+0.5 F)
Auburn 5 ESE	+0.3 C (+0.5 F)
Franklin Sewage Plt	+0.3 C (+0.5 F)
Berne Wwtp	+0.3 C (+0.5 F)
1 WSW Princeton	+0.3 C (+0.5 F)
Plainville 4WNW	+0.3 C (+0.5 F)
Red Cloud	+0.3 C (+0.5 F)
Emmett 2 E	+0.3 C (+0.5 F)
Kirksville	+0.3 C (+0.5 F)
Mtn Grove 2 N	+0.3 C (+0.5 F)
Fremont	+0.3 C (+0.5 F)
Oakdale	+0.3 C (+0.5 F)
Huntsville	+0.3 C (+0.5 F)
Malvern	+0.3 C (+0.5 F)
Olney 2S	+0.3 C (+0.5 F)
Mc Leod 3 E	+0.3 C (+0.5 F)
Ashland	+0.3 C (+0.5 F)
Forest Grove	+0.3 C (+0.5 F)
Itasca UNIV of Minn	+0.2 C (+0.4 F)
Harrison	+0.2 C (+0.4 F)
Plymouth Wwtp	+0.2 C (+0.4 F)
Big Timber	+0.2 C (+0.4 F)
Lacrosse	+0.2 C (+0.4 F)
Mt Vernon 3 NE	+0.2 C (+0.4 F)
White Hall 1 E	+0.2 C (+0.4 F)
Norton 9SSE	+0.2 C (+0.4 F)
Rapelje	+0.2 C (+0.4 F)
Algona	+0.2 C (+0.4 F)
Crookston NW Exp STN	+0.2 C (+0.4 F)
Grand Meadow	+0.2 C (+0.4 F)
Ravenna	+0.2 C (+0.4 F)
Syracuse	+0.2 C (+0.4 F)
Vancouver 4 NNE	+0.2 C (+0.4 F)
Kellogg	+0.2 C (+0.3 F)
Plevna	+0.2 C (+0.3 F)
Statesville 2 NNE	+0.2 C (+0.3 F)
Burkes Garden	+0.2 C (+0.3 F)
Lexington	+0.2 C (+0.3 F)
Highmore	+0.2 C (+0.3 F)
Danevang 1 W	+0.2 C (+0.3 F)
Iowa Falls	+0.2 C (+0.3 F)
Billings Wtp	+0.2 C (+0.3 F)
Jamestown State Hosp	+0.2 C (+0.3 F)
Tribune 1W	+0.1 C (+0.2 F)
Eureka	+0.1 C (+0.2 F)
Wilbur	+0.1 C (+0.2 F)
Minocqua	+0.1 C (+0.2 F)
Newton	+0.1 C (+0.2 F)
Viroqua	+0.1 C (+0.2 F)
Appleton City	+0.1 C (+0.1 F)
Jackson	+0.1 C (+0.1 F)
Port Jervis	+0.1 C (+0.1 F)
Leech Lake	+0.1 C (+0.1 F)
Glendive	+0.1 C (+0.1 F)
Prairie du Chien	+0.1 C (+0.1 F)
Osage	+0.1 C (+0.1 F)
Greensburg	+0.1 C (+0.1 F)
Fayette	0.0 C (+0.1 F)
Le Mars	0.0 C (+0.1 F)
Windsor	0.0 C (0.0 F)
Manhattan	0.0 C (0.0 F)
Hiram	0.0 C (0.0 F)
Newport	0.0 C (0.0 F)
Ojai	0.0 C (0.0 F)
Clarinda	0.0 C (0.0 F)
Indianola 1SW	0.0 C (0.0 F)
Saint Francis	0.0 C (0.0 F)
Minneapolis	0.0 C (0.0 F)
Hernando	0.0 C (0.0 F)
Bethany	0.0 C (0.0 F)
Crosby	0.0 C (0.0 F)
Napoleon	0.0 C (0.0 F)
Scott City	0.0 C (-0.1 F)
Tyndall	0.0 C (-0.1 F)
Spencer	0.0 C (-0.1 F)
Watertown Wwtp	0.0 C (-0.1 F)
Moran 5WNW	0.0 C (-0.1 F)
Aledo	0.0 C (-0.1 F)
Iowa City	0.0 C (-0.1 F)
Keosauqua	0.0 C (-0.1 F)
Minden	0.0 C (-0.1 F)
New Salem 5NW	0.0 C (-0.1 F)
Faulkton	0.0 C (-0.1 F)
Lamar	-0.1 C (-0.1 F)
Enid	-0.1 C (-0.1 F)
Keene	-0.1 C (-0.1 F)
Headworks Portland Wtr B	-0.1 C (-0.1 F)
Britton	-0.1 C (-0.1 F)
Denison	-0.1 C (-0.2 F)
Forest City 2 NNE	-0.1 C (-0.2 F)
Dayton 1 WSW	-0.1 C (-0.2 F)
White Sulphur Springs	-0.1 C (-0.2 F)
McPherson	-0.1 C (-0.2 F)
O'Neill	-0.1 C (-0.2 F)
Centralia	-0.1 C (-0.2 F)
Conway	-0.1 C (-0.2 F)
Fond du Lac Wwtp	-0.1 C (-0.2 F)
Lockwood	-0.1 C (-0.3 F)
Winfield 3NE	-0.1 C (-0.3 F)
Seward	-0.1 C (-0.3 F)
New Hampton	-0.2 C (-0.3 F)
Holter Dam	-0.2 C (-0.3 F)
Mt Airy 2 W	-0.2 C (-0.3 F)
Academy 2NE	-0.2 C (-0.3 F)
Mammoth Spring	-0.2 C (-0.3 F)
Paris Stp	-0.2 C (-0.3 F)
Parsons 2 NW	-0.2 C (-0.3 F)
Marinette	-0.2 C (-0.3 F)
Webster City	-0.2 C (-0.3 F)
Imperial	-0.2 C (-0.3 F)
Pocahontas 1	-0.2 C (-0.4 F)
Subiaco	-0.2 C (-0.4 F)
Rhinelander	-0.2 C (-0.4 F)
Logan 1 WNW	-0.2 C (-0.4 F)
Horton	-0.2 C (-0.4 F)
Ottawa 4SW	-0.2 C (-0.4 F)
Elkader 6 SSW	-0.2 C (-0.4 F)
Broken Bow 2 W	-0.2 C (-0.4 F)
Cedar Lake	-0.2 C (-0.4 F)
Ft Dodge 5NNW	-0.2 C (-0.4 F)
Lincoln 1 SE	-0.3 C (-0.5 F)
Choteau	-0.3 C (-0.5 F)
Greenfield	-0.3 C (-0.5 F)
Holdrege	-0.3 C (-0.5 F)
Telluride 4WNW	-0.3 C (-0.6 F)
Cottonwood Falls	-0.3 C (-0.6 F)
Chariton 1 E	-0.3 C (-0.6 F)
Wamego 4 W	-0.3 C (-0.6 F)
Wakefield 3NW	-0.4 C (-0.7 F)
Butte	-0.4 C (-0.7 F)
Ft Assiniboine	-0.4 C (-0.7 F)
River Falls	-0.4 C (-0.7 F)
Jonesboro 3 SSE	-0.4 C (-0.7 F)
Sigourney	-0.4 C (-0.8 F)
Woodstock 2 NE	-0.4 C (-0.8 F)
Clay Ctr	-0.4 C (-0.8 F)
Beaver City	-0.4 C (-0.8 F)
Ottawa	-0.5 C (-0.9 F)
Prescott 2 NNW	-0.5 C (-1.0 F)
Canon City	-0.5 C (-1.0 F)
Liberal	-0.6 C (-1.0 F)
Miller	-0.6 C (-1.0 F)
Albia 3 NNE	-0.6 C (-1.0 F)
Jefferson	-0.6 C (-1.1 F)
Washington	-0.6 C (-1.1 F)
Natchez	-0.6 C (-1.1 F)
Alexandria	-0.7 C (-1.2 F)
Audubon	-0.8 C (-1.5 F)
Wood	-0.9 C (-1.6 F)

Across 2,140 stations in United States with long records, the mean annual temperature was 10.8 C (51.5 F) in 1961-1990, 11.4 C (52.5 F) in 1991-2020 and 11.8 C (53.2 F) in 2011-2025, a change of +1.0 C (+1.7 F) from the first period to the latest.

Mean annual rain, from years with at least 329 days of rain data, was 857.2 mm (33.7 in) in 1961-1990, 884.6 mm (34.8 in) in 1991-2020 and 883.0 mm (34.8 in) in 2011-2025, a change of +3.0% from the first period to the latest.

Of the 600 stations on the map, 513 were warmer in 2011-2025 than in 1961-1990 and 82 were cooler.

442 of the 581 stations on the map with a rain figure had more rain and 137 had less.

Three periods

Mean temperature and annual rain in three periods, United States
Period	Mean temperature	Annual rain
1961-1990	10.8 C (51.5 F)	857.2 mm (33.7 in)
1991-2020	11.4 C (52.5 F)	884.6 mm (34.8 in)
2011-2025	11.8 C (53.2 F)	883.0 mm (34.8 in)
Change, 1991-2020 against 1961-1990	+0.6 C (+1.1 F)	+3.2%
Change, 2011-2025 against 1961-1990	+1.0 C (+1.7 F)	+3.0%

Based on 2,140 stations with at least 20 complete years in 1961-1990 and in 1991-2020 and at least 8 in 2011-2025. The periods 1991-2020 and 2011-2025 overlap. Scope means are weighted by grid cell, as in the warming series; rain counts years with at least 329 days of rain data.

Longest Hot, Cold, Wet and Dry Streaks: United States

7 lists of 10

In United States, the longest run of hot days in a row in the data is 172 days, at Death Valley Np (United States), from 12 May 2003 to 30 October 2003.
In United States, the longest run of days in a row at or above 40 C in the data is 121 days, at Death Valley Np (United States), from 31 May 1974 to 28 September 1974.
In United States, the longest run of frost days in a row in the data is 323 days, at Barrow AP (United States), from 9 August 1955 to 26 June 1956.
In United States, the longest run of ice days in a row in the data is 250 days, at Barter Island WSO AP (United States), from 20 September 1974 to 27 May 1975.
In United States, the longest run of dry days in a row in the data is 333 days, at Montebello (United States), in 2007.
In United States, the longest run of wet days in a row in the data is 93 days, at Kawainui Upper (United States), in 1925.
In United States, the longest run of longest run of nights at or above 25 c in the data is 136 days, at Key West NAS (United States), from 3 June 2024 to 16 October 2024.

Longest run of days at or above 35 C

Consecutive days with a daily maximum at or above 35 C (95 F).

Longest run of days at or above 35 C, United States: the 10 longest runs
Rank	Station	Country	Length	When
1	Death Valley Np	United States	172 days	12 May to 30 October 2003
2	Mohawk	United States	160 days	5 May to 11 October 1910
3	Gila Bend 2SE	United States	152 days	13 May to 11 October 1922
4	Greenland Rch	United States	152 days	17 May to 15 October 1956
5	Havasu Arizona	United States	149 days	5 May to 30 September 2001
6	Marinette	United States	148 days	28 May to 22 October 1933
7	Youngtown	United States	148 days	7 May to 1 October 2001
8	Tacna 3 NE	United States	148 days	13 May to 7 October 2022
9	Quartzsite	United States	143 days	30 April to 19 September 1924
10	Needles AP	United States	140 days	16 May to 2 October 2003

Longest run of days at or above 40 C

Consecutive days with a daily maximum at or above 40 C (104 F).

Longest run of days at or above 40 C, United States: the 10 longest runs
Rank	Station	Country	Length	When
1	Death Valley Np	United States	121 days	31 May to 28 September 1974
2	Mohawk	United States	119 days	2 June to 28 September 1911
3	Greenland Rch	United States	118 days	27 May to 21 September 1960
4	Tacna 3 NE	United States	99 days	10 June to 16 September 2024
5	Brawley 2 SW	United States	94 days	18 June to 19 September 1937
6	Quartzsite	United States	91 days	9 June to 7 September 1933
7	Indio Fire STN	United States	90 days	14 June to 11 September 2024
8	Bullhead City	United States	88 days	10 June to 5 September 2002
9	El Centro 2 SSW	United States	85 days	10 June to 2 September 1940
10	Parker Rsvr	United States	82 days	4 June to 24 August 2024

Longest run of frost days (minimum at or below 0 C)

Consecutive days with a daily minimum at or below 0 C (32 F).

Longest run of frost days (minimum at or below 0 C), United States: the 10 longest runs
Rank	Station	Country	Length	When
1	Barrow AP	United States	323 days	9 August 1955 to 26 June 1956
2	Barter Island WSO AP	United States	298 days	29 August 1975 to 21 June 1976
3	Crested Butte	United States	283 days	25 August 1916 to 3 June 1917
4	Sagwon	United States	282 days	8 September 2004 to 16 June 2005
5	Point Hope	United States	281 days	1 October 1948 to 8 July 1949
6	Fraser	United States	281 days	14 August 1964 to 21 May 1965
7	Wainwright AP	United States	281 days	8 September 2000 to 15 June 2001
8	Hermit 8 SE	United States	280 days	15 September 1970 to 21 June 1971
9	Kuparuk	United States	275 days	6 September 1992 to 7 June 1993
10	Rio Grande Rsvr	United States	274 days	26 September 1978 to 26 June 1979

Longest run of ice days (maximum at or below 0 C)

Consecutive days with a daily maximum at or below 0 C (32 F).

Longest run of ice days (maximum at or below 0 C), United States: the 10 longest runs
Rank	Station	Country	Length	When
1	Barter Island WSO AP	United States	250 days	20 September 1974 to 27 May 1975
2	Barrow AP	United States	250 days	23 September 1975 to 29 May 1976
3	Atigun Pass	United States	239 days	25 September 2012 to 21 May 2013
4	Wainwright AP	United States	237 days	4 October 2000 to 28 May 2001
5	Kuparuk	United States	231 days	9 October 1985 to 27 May 1986
6	Prudhoe Bay	United States	222 days	28 September 1986 to 7 May 1987
7	Arctic Village	United States	203 days	10 October 1971 to 29 April 1972
8	Pt Lay	United States	200 days	4 November 1951 to 21 May 1952
9	Ft Yukon	United States	199 days	6 October 1960 to 22 April 1961
10	Circle Hot Springs	United States	197 days	7 October 1960 to 21 April 1961

Longest dry spell (days under 1 mm of rain), within one year

Consecutive days with less than 1 mm (0.04 in) of rain, the longest run within a year. The dates are not kept, so the list gives the year (within the year).

Longest dry spell (days under 1 mm of rain), within one year, United States: the 10 longest runs
Rank	Station	Country	Length	When
1	Montebello	United States	333 days	within 2007
2	Indio Fire STN	United States	331 days	within 1928
3	Niland	United States	329 days	within 1974
4	Sentinel	United States	324 days	within 1901
5	Mohawk	United States	322 days	within 1928
6	Brawley 2 SW	United States	313 days	within 1997
7	Coalinga	United States	305 days	within 1959
8	Mecca Fire STN	United States	303 days	within 1977
9	Blythe	United States	301 days	within 1962
10	Greenland Rch	United States	300 days	within 1927

Longest wet spell (days with 1 mm or more of rain), within one year

Consecutive days with 1 mm (0.04 in) or more of rain, the longest run within a year. The dates are not kept, so the list gives the year (within the year).

Longest wet spell (days with 1 mm or more of rain), within one year, United States: the 10 longest runs
Rank	Station	Country	Length	When
1	Kawainui Upper	United States	93 days	within 1925
2	Mt Waialeale 1047	United States	86 days	within 1951
3	Kopiluila	United States	82 days	within 1914
4	Pahoa 65	United States	82 days	within 1914
5	Kumaloa Ditch	United States	81 days	within 1914
6	Mtn View 91	United States	80 days	within 1930
7	Kawainui Lower 193	United States	78 days	within 1952
8	Waiahi Upper 1052	United States	75 days	within 1963
9	Keauhou 2 73A	United States	73 days	within 1934
10	Honomu Mauka 138	United States	72 days	within 1924

Longest run of nights at or above 25 C

Longest run of nights at or above 25 C, United States: the 10 longest runs
Rank	Station	Country	Length	When
1	Key West NAS	United States	136 days	3 June to 16 October 2024
2	Death Valley Np	United States	113 days	27 May to 16 September 2024
3	Fish Creek Mtn California	United States	109 days	14 June to 30 September 2001
4	Phoenix AP	United States	109 days	1 June to 17 September 2024
5	Port Aransas	United States	96 days	6 June to 9 September 2009
6	Corpus Christi NAS	United States	91 days	15 June to 13 September 1993
7	Port Isabel	United States	91 days	30 May to 28 August 1998
8	Squaw Lake California	United States	85 days	16 June to 8 September 2017
9	Needles AP	United States	85 days	21 June to 13 September 2018
10	Greenland Rch	United States	84 days	30 May to 21 August 1960

A run belongs to the year it started in, even when it ran on into the next year. A station appears once per list, with its longest run in a complete year. Dry and wet spells are the longest run within a year. Lists use complete years only, so a long run in a year with gaps in the record is not counted.

Snow Cover and Heavy Snowfall by Decade: United States

1,528 stations, fixed set

In United States, the mean number of days per season with snow on the ground (25 mm or more, 1.0 in) at 1,528 stations fell from 53.0 to 43.0 between the 1960s and the 2020s.
In United States, the mean number of heavy snowfall days per season (100 mm or more, 3.9 in, in a day) fell from 3.16 to 2.56 between the 1960s and the 2020s.
In United States, mean seasonal snowfall fell from 105.5 to 89.7 cm between the 1960s and the 2020s (105.5 cm (41.5 in) and 89.7 cm (35.3 in)).
The trend in snow cover days is -1.1 days per decade (95 percent interval -2.3 to +0.1), fitted to 66 seasons from 1960 to 2025. The interval includes zero, so the series does not separate a trend from year to year variation.
The snowiest season in the data is 1971-72 at Rainier Paradise Rs (United States), with 2,849.9 cm (1,122.0 in) of snowfall.

Days with snow on the ground per season

Mean number of days per season with at least 25 mm (1.0 in) of snow on the ground, by decade, United States, 1960s to 2020s, the same 1,528 stations in every decade. A season runs from 1 July to 30 June.

Heavy snowfall days per season

Mean number of days per season with 100 mm (3.9 in) or more of new snow, by decade, United States, 1960s to 2020s, the same 1,528 stations in every decade.

Snowfall per season

Mean total snowfall per season in centimetres, by decade, United States, 1960s to 2020s. Shown because at least 60 percent of the stations report snowfall.

Mean seasonal snowfall by decade, United States
Decade	Mean snowfall per season, cm
1960s	105.5 cm (41.5 in)
1970s	111.2 cm (43.8 in)
1980s	98.5 cm (38.8 in)
1990s	102.0 cm (40.1 in)
2000s	102.8 cm (40.5 in)
2010s	106.8 cm (42.0 in)
2020s	89.7 cm (35.3 in)

The snowiest seasons

The snowiest station seasons, United States
Rank	Station	Country	Season	Snowfall
1	Rainier Paradise Rs	United States	1971-72	2,849.9 cm (1,122.0 in)
2	Rainier Paradise Rs	United States	1973-74	2,720.3 cm (1,071.0 in)
3	Rainier Paradise Rs	United States	1970-71	2,593.6 cm (1,021.1 in)
4	Rainier Paradise Rs	United States	1998-99	2,444.9 cm (962.6 in)
5	Rainier Paradise Rs	United States	2010-11	2,183.1 cm (859.5 in)
6	Alta	United States	1982-83	2,157.6 cm (849.4 in)
7	Rainier Paradise Rs	United States	1975-76	2,157.4 cm (849.4 in)
8	Crater Lake Nps HQ	United States	1932-33	2,103.0 cm (828.0 in)
9	Rainier Paradise Rs	United States	1955-56	2,098.9 cm (826.3 in)
10	Crater Lake Nps HQ	United States	1951-52	2,097.4 cm (825.7 in)

A snow season runs from 1 July to 30 June and is labelled by the year it starts in, so 2009-10 is the season of 2009. A season is complete when at least 150 days report snow depth. The set holds stations at 20 degrees north or further north with at least 5 snow cover days per season on average in 1961-1990 and complete seasons in every decade.

Biggest One Day Temperature Swings: United States

5 lists of 10

In United States, the largest reported one day rise in the daily maximum is 43.3 C (77.9 F), at University Camp (United States) on 3 February 2011.
In United States, the largest reported one day drop in the daily maximum is 45.6 C (82.1 F), at Midwest (United States) on 1 February 1989.
In United States, the largest reported one day rise in the daily minimum is 43.9 C (79.0 F), at Pokegama Dam (United States) on 9 January 1894.
In United States, the largest reported one day drop in the daily minimum is 42.8 C (77.0 F), at Allakaket (United States) on 25 February 1943.
In United States, the largest reported range between the high and the low of one day is 54.4 C (97.9 F), at Candle (United States) on 27 December 1909.

Caveat.Single readings can still be instrument errors that quality control missed. A station with one faulty value can top a list, so read each entry as a reported value, not as a confirmed event.

Biggest one day rise in the daily maximum

The largest increase in the daily maximum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.

Biggest one day rise in the daily maximum, United States
Rank	Station	Country	Value	Date
1	University Camp	United States	43.3 C (77.9 F)	3 February 2011
2	Manley Hot Springs	United States	38.9 C (70.0 F)	1 January 1981
3	Big Delta AP	United States	38.8 C (69.8 F)	17 January 1980
4	Ekalaka	United States	38.3 C (68.9 F)	17 March 1902
5	Loma	United States	38.3 C (68.9 F)	15 January 1972
6	Usta 8 WNW Kelly Rch	United States	38.3 C (68.9 F)	23 December 1989
7	Augusta	United States	37.7 C (67.9 F)	29 December 1917
8	Roundup	United States	37.7 C (67.9 F)	29 December 1917
9	Malta 35 S	United States	37.7 C (67.9 F)	23 December 1989
10	Belle Fourche	United States	37.2 C (67.0 F)	23 December 1989

Biggest one day drop in the daily maximum

The largest decrease in the daily maximum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.

Biggest one day drop in the daily maximum, United States
Rank	Station	Country	Value	Date
1	Midwest	United States	45.6 C (82.1 F)	1 February 1989
2	Loma	United States	43.9 C (79.0 F)	1 February 1989
3	Sun Rvr 4 S	United States	43.9 C (79.0 F)	1 February 1989
4	Utica	United States	43.3 C (77.9 F)	15 December 1924
5	Fairfield	United States	43.3 C (77.9 F)	31 January 1989
6	Rogers Pass 9 NNE	United States	43.3 C (77.9 F)	1 February 1989
7	Holter Dam	United States	42.8 C (77.0 F)	16 December 1924
8	Conrad	United States	42.7 C (76.9 F)	1 February 1989
9	Grass Range	United States	42.7 C (76.9 F)	1 February 1989
10	Geraldine	United States	42.3 C (76.1 F)	1 February 1989

Biggest one day rise in the daily minimum

The largest increase in the daily minimum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.

Biggest one day rise in the daily minimum, United States
Rank	Station	Country	Value	Date
1	Pokegama Dam	United States	43.9 C (79.0 F)	9 January 1894
2	Cut Bank AP	United States	42.2 C (76.0 F)	17 December 1979
3	Stanford	United States	40.6 C (73.1 F)	23 December 1989
4	Aniak AP	United States	40.5 C (72.9 F)	17 March 1971
5	Oral	United States	40.0 C (72.0 F)	24 December 1989
6	Brady Aznoe	United States	39.5 C (71.1 F)	16 January 1971
7	Barber	United States	39.5 C (71.1 F)	23 December 1989
8	Port Alsworth	United States	39.4 C (70.9 F)	28 February 1965
9	Ft Benton	United States	38.9 C (70.0 F)	25 January 1906
10	Carter 14 W	United States	38.9 C (70.0 F)	23 December 1989

Biggest one day drop in the daily minimum

The largest decrease in the daily minimum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.

Biggest one day drop in the daily minimum, United States
Rank	Station	Country	Value	Date
1	Allakaket	United States	42.8 C (77.0 F)	25 February 1943
2	Browning	United States	41.7 C (75.1 F)	24 January 1916
3	Moccasin Exp STN	United States	41.6 C (74.9 F)	14 December 1924
4	Gibson Dam	United States	41.1 C (74.0 F)	15 December 1924
5	White Mtn	United States	40.5 C (72.9 F)	13 March 1945
6	East Anaconda	United States	38.4 C (69.1 F)	16 December 1924
7	Great Falls AP	United States	38.4 C (69.1 F)	31 January 1989
8	Adel	United States	37.7 C (67.9 F)	15 December 1924
9	Holter Dam	United States	37.7 C (67.9 F)	15 December 1924
10	Blackleaf	United States	37.3 C (67.1 F)	15 December 1979

Widest range between the high and the low of one day

The largest difference between the highest and the lowest temperature of the same day. Values are in degrees Celsius with Fahrenheit beside them.

Widest range between the high and the low of one day, United States
Rank	Station	Country	Value	Date
1	Candle	United States	54.4 C (97.9 F)	27 December 1909
2	Antigo	United States	52.8 C (95.0 F)	1 January 1899
3	Greeley	United States	52.7 C (94.9 F)	9 December 1919
4	Carson	United States	52.2 C (94.0 F)	2 March 1913
5	Browning	United States	51.7 C (93.1 F)	24 January 1916
6	Wiseman	United States	51.1 C (92.0 F)	20 February 2012
7	Lake Yellowstone	United States	50.6 C (91.1 F)	13 January 1917
8	Chambers	United States	50.5 C (90.9 F)	29 February 1940
9	Salem	United States	50.5 C (90.9 F)	28 January 1994
10	Ft Benton	United States	50.0 C (90.0 F)	24 January 1906

Only stations with at least 10 complete years are listed, and a station appears once per list.

Hot and Dry Summers: United States

4,697 stations with a 1961-1990 record

In United States, the share of stations with a hot and dry summer is shown for each year from 1878 to 2026, for 4,697 stations with at least 20 complete summers in 1961-1990. Each year counts the stations of that set with a complete summer in the year.
In United States, 9.3% of station summers in 1961-1990 were hot and dry (128,856 station summers).
In United States, 14.8% of station summers in 2012-2026 were hot and dry (37,774 station summers).
In United States, 1936 had the highest share: 43.9% of 1,895 stations (832).

A summer is hot when its mean daily maximum is at or above the station's 80th percentile of its 1961-1990 summers, and dry when its rain is at or below the 20th percentile. A summer is hot and dry when it is both. Summer is June to August north of the equator and December to February south of it, labelled by the year of its first month.

Share of stations with a hot and dry summer

Percent of stations with a complete summer that were both hot and dry, by year, United States, 1878 to 2026, out of 4,697 stations with at least 20 complete summers in 1961-1990. Dashed line: the 1961-1990 level in this data, 9.3% of station summers. The most in one year was 43.9%. Dashed line: 1961-1990 level, 9.3%.

Share of stations with a hot and dry summer by year, United States
Summer	Stations with a hot and dry summer
1878	9.1%
1879	0.0%
1880	0.0%
1881	0.0%
1882	6.7%
1883	17.6%
1884	10.5%
1885	14.3%
1886	4.2%
1887	8.0%
1888	3.6%
1889	0.0%
1890	0.0%
1891	0.0%
1892	6.5%
1893	16.2%
1894	41.3%
1895	7.5%
1896	6.6%
1897	6.9%
1898	8.9%
1899	14.4%
1900	11.8%
1901	29.5%
1902	12.8%
1903	2.4%
1904	2.7%
1905	4.7%
1906	3.8%
1907	3.4%
1908	8.5%
1909	7.5%
1910	20.0%
1911	15.0%
1912	1.8%
1913	28.8%
1914	13.5%
1915	3.6%
1916	8.7%
1917	11.1%
1918	21.9%
1919	20.5%
1920	3.2%
1921	15.1%
1922	17.5%
1923	7.7%
1924	17.4%
1925	19.8%
1926	9.2%
1927	3.4%
1928	4.9%
1929	13.8%
1930	40.0%
1931	23.6%
1932	11.2%
1933	32.9%
1934	31.7%
1935	12.0%
1936	43.9%
1937	12.4%
1938	12.5%
1939	13.8%
1940	19.9%
1941	6.8%
1942	5.8%
1943	17.9%
1944	15.7%
1945	4.8%
1946	7.3%
1947	6.0%
1948	9.5%
1949	11.2%
1950	2.4%
1951	10.4%
1952	23.1%
1953	23.6%
1954	25.1%
1955	10.4%
1956	15.9%
1957	11.1%
1958	7.2%
1959	17.1%
1960	14.5%
1961	13.8%
1962	5.8%
1963	7.3%
1964	8.1%
1965	1.4%
1966	13.2%
1967	6.7%
1968	4.8%
1969	5.0%
1970	15.9%
1971	6.4%
1972	2.4%
1973	9.1%
1974	6.8%
1975	2.3%
1976	11.7%
1977	7.3%
1978	9.5%
1979	2.1%
1980	30.2%
1981	9.4%
1982	2.0%
1983	23.9%
1984	9.5%
1985	6.6%
1986	8.5%
1987	8.7%
1988	30.7%
1989	4.5%
1990	7.8%
1991	13.3%
1992	1.2%
1993	11.9%
1994	15.9%
1995	10.5%
1996	11.1%
1997	2.0%
1998	13.5%
1999	10.7%
2000	15.0%
2001	11.3%
2002	25.0%
2003	15.0%
2004	3.6%
2005	8.6%
2006	19.2%
2007	17.9%
2008	7.7%
2009	5.7%
2010	8.6%
2011	24.1%
2012	35.1%
2013	6.9%
2014	3.1%
2015	8.9%
2016	15.2%
2017	12.5%
2018	14.4%
2019	10.1%
2020	20.4%
2021	17.7%
2022	14.1%
2023	15.5%
2024	15.7%
2025	15.6%
2026	17.6%

The ten most extreme station summers

The most extreme hot and dry station summers, United States
Rank	Station	Country	Summer	Mean daily maximum vs 1961-1990	Rain, percent of 1961-1990 mean
1	Kula Sanatorium 267	United States	1941	+4.0 C (+7.2 F)	124%
2	Kula Sanatorium 267	United States	1940	+3.2 C (+5.8 F)	128%
3	Kula Sanatorium 267	United States	1937	+3.1 C (+5.6 F)	143%
4	Spicer	United States	1919	+4.8 C (+8.7 F)	21%
5	Crawfordsville Pwr Plt	United States	1933	+4.4 C (+7.8 F)	31%
6	Crescent City 3 NNW	United States	1932	+4.9 C (+8.7 F)	33%
7	Rockport 1 ESE	United States	1949	+4.0 C (+7.2 F)	37%
8	Edwardsport Pwr Plt	United States	1933	+4.7 C (+8.5 F)	36%
9	Chama	United States	1896	+4.6 C (+8.2 F)	50%
10	Key West NAS	United States	2022	+3.4 C (+6.1 F)	68%

Ranked by the temperature z score minus the rain z score against the station's own 1961-1990 mean and standard deviation (at least 0.3 C and 5 mm). A summer is labelled by the year of its first month.

Decade	Mean days per year
1960s	60.0
1970s	60.3
1980s	62.1
1990s	58.3
2000s	61.1
2010s	65.2
2020s (so far, 6 years)	67.7

Decade	Mean days per year
1960s	12.8
1970s	12.6
1980s	15.3
1990s	13.0
2000s	14.3
2010s	15.5
2020s (so far, 6 years)	16.7

Decade	Mean days per year
1960s	23.9
1970s	25.2
1980s	27.7
1990s	27.9
2000s	29.2
2010s	33.5
2020s (so far, 6 years)	33.6

Decade	Mean days per year
1960s	125.3
1970s	123.9
1980s	120.7
1990s	116.8
2000s	117.5
2010s	116.4
2020s (so far, 6 years)	113.6

Decade	Mean days per year
1960s	32.2
1970s	33.6
1980s	31.1
1990s	28.4
2000s	29.7
2010s	31.2
2020s (so far, 6 years)	26.1

Decade	Share of annual rain
1960s	13.7%
1970s	13.1%
1980s	13.1%
1990s	12.8%
2000s	13.4%
2010s	13.2%
2020s	13.5%

Decade	Mean days per year
1960s	7.59
1970s	8.21
1980s	7.99
1990s	8.73
2000s	8.36
2010s	8.97
2020s	8.41

Decade	Mean days per year
1960s	1.57
1970s	1.67
1980s	1.65
1990s	1.86
2000s	1.79
2010s	1.97
2020s	1.83

Decade	Mean days per year
1960s	0.15
1970s	0.15
1980s	0.15
1990s	0.18
2000s	0.18
2010s	0.20
2020s	0.17

Decade	Mean longest dry spell, days
1960s	35.3 days
1970s	34.8 days
1980s	33.8 days
1990s	33.7 days
2000s	35.7 days
2010s	34.2 days
2020s	36.8 days

Decade	Mean cover days per season
1960s	53.0
1970s	55.5
1980s	46.8
1990s	45.0
2000s	48.3
2010s	51.7
2020s	43.0

Decade	Mean heavy snowfall days per season
1960s	3.16
1970s	3.31
1980s	2.95
1990s	3.10
2000s	3.04
2010s	3.13
2020s	2.56

Climate Trends in United States