Key Facts

From 1951 to 2025, long-record stations in North America warmed by +0.16 C per decade (+0.29 F) (95 percent interval +0.11 to +0.22 C), from 2,498 stations measured against each station's own 1961-1990 mean.
The latest year in the series for North America, 2025, was +1.22 C against the 1961-1990 mean.
In North America the daily minimum rose faster than the daily maximum, by 0.09 C per decade (the two intervals overlap).
Of 4,497 stations in North America with at least 50 complete years of record, 381 had 2024 as their warmest year.
In North America, the mean annual temperature of 2,146 stations changed by +0.96 C between the 1961-1990 and 2011-2025 periods.

Warming

North America, against 1961-1990

Annual mean temperature of the long-record stations in North America as a difference from each station's own 1961-1990 mean, 1951 to 2025. 2,498 stations in 72 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, North America
Year	Difference from the 1961-1990 mean
1951	-0.25 C
1952	+0.18 C
1953	+0.70 C
1954	+0.44 C
1955	-0.25 C
1956	-0.19 C
1957	+0.31 C
1958	+0.12 C
1959	+0.10 C
1960	-0.04 C
1961	-0.09 C
1962	+0.03 C
1963	+0.17 C
1964	-0.22 C
1965	-0.17 C
1966	-0.30 C
1967	-0.01 C
1968	-0.27 C
1969	-0.08 C
1970	-0.17 C
1971	-0.40 C
1972	-0.45 C
1973	+0.09 C
1974	-0.03 C
1975	-0.37 C
1976	-0.33 C
1977	+0.33 C
1978	-0.12 C
1979	-0.18 C
1980	+0.22 C
1981	+0.66 C
1982	-0.24 C
1983	+0.10 C
1984	+0.02 C
1985	-0.20 C
1986	+0.57 C
1987	+0.61 C
1988	+0.29 C
1989	-0.11 C
1990	+0.63 C
1991	+0.56 C
1992	+0.08 C
1993	-0.02 C
1994	+0.33 C
1995	+0.40 C
1996	-0.07 C
1997	+0.22 C
1998	+1.03 C
1999	+0.49 C
2000	+0.52 C
2001	+0.64 C
2002	+0.64 C
2003	+0.64 C
2004	+0.58 C
2005	+0.81 C
2006	+0.86 C
2007	+0.67 C
2008	-0.05 C
2009	+0.08 C
2010	+0.45 C
2011	+0.45 C
2012	+1.01 C
2013	+0.19 C
2014	+0.50 C
2015	+1.21 C
2016	+1.63 C
2017	+1.15 C
2018	+0.91 C
2019	+0.68 C
2020	+1.10 C
2021	+1.03 C
2022	+0.72 C
2023	+1.19 C
2024	+1.65 C
2025	+1.22 C

From 1951 to 2025, the long-record stations in North America warmed by +0.16 C per decade (+0.29 F) (95 percent interval +0.11 to +0.22 C), from 2,498 stations in 72 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 (+1.65 C), 2016 (+1.63 C), 2025 (+1.22 C), 2015 (+1.21 C) and 2023 (+1.19 C).

Trend

Warming trend per decade, North America
Measure	Trend per decade (C)	95% interval (C)	Years	Stations
Annual mean temperature	+0.16	+0.11 to +0.22	1951 to 2025	2,498

Warmest and coolest years in the series

Warmest and coolest years of the 1961-1990 anomaly series, North America
Rank	Warmest year	Difference from mean	Coolest year	Difference from mean
1	2024	+1.65 C	1972	-0.45 C
2	2016	+1.63 C	1971	-0.40 C
3	2025	+1.22 C	1975	-0.37 C
4	2015	+1.21 C	1976	-0.33 C
5	2023	+1.19 C	1966	-0.30 C

2,498 stations in 72 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

North America, 4,497 stations

For each year 1870 to 2025, the number of the 4,497 stations in North America 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 4,497.

Stations that had each year as their warmest on record, North America
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	3
1879	1
1880	0
1881	0
1882	0
1883	0
1884	0
1885	0
1886	0
1887	0
1888	0
1889	3
1890	0
1891	1
1892	0
1893	0
1894	2
1895	0
1896	8
1897	1
1898	4
1899	0
1900	4
1901	3
1902	1
1903	0
1904	0
1905	1
1906	1
1907	1
1908	1
1909	0
1910	12
1911	29
1912	0
1913	7
1914	2
1915	4
1916	2
1917	2
1918	2
1919	2
1920	1
1921	295
1922	9
1923	0
1924	1
1925	9
1926	22
1927	50
1928	7
1929	1
1930	6
1931	352
1932	4
1933	70
1934	317
1935	1
1936	4
1937	2
1938	44
1939	26
1940	17
1941	27
1942	3
1943	10
1944	1
1945	7
1946	42
1947	2
1948	14
1949	86
1950	15
1951	11
1952	11
1953	107
1954	197
1955	3
1956	13
1957	8
1958	80
1959	13
1960	4
1961	1
1962	4
1963	16
1964	3
1965	5
1966	2
1967	4
1968	1
1969	3
1970	0
1971	0
1972	7
1973	8
1974	1
1975	7
1976	5
1977	3
1978	1
1979	4
1980	8
1981	73
1982	3
1983	4
1984	6
1985	0
1986	13
1987	186
1988	13
1989	8
1990	99
1991	15
1992	28
1993	1
1994	16
1995	8
1996	22
1997	15
1998	239
1999	32
2000	14
2001	14
2002	6
2003	35
2004	4
2005	8
2006	31
2007	22
2008	8
2009	8
2010	16
2011	20
2012	376
2013	4
2014	97
2015	125
2016	86
2017	67
2018	8
2019	52
2020	35
2021	32
2022	5
2023	89
2024	381
2025	101

Of the 4,497 stations in North America with at least 50 complete years of record, 381 (8.5%) had 2024 as their warmest year on record.

The years that were the warmest on record at the most stations are 2024 (381 stations), 2012 (376 stations), 1931 (352 stations), 1934 (317 stations) and 1921 (295 stations).

851 of the 4,497 stations (18.9%) had their warmest year in the 2010s.

By decade

Stations by the decade of their warmest year, North America
Decade	Stations with their warmest year in it	Share of stations	Stations with one of their five warmest years in it
1870s	4	0.1%	20
1880s	3	0.1%	22
1890s	16	0.4%	112
1900s	12	0.3%	139
1910s	62	1.4%	387
1920s	395	8.8%	1,400
1930s	826	18.4%	3,356
1940s	209	4.6%	1,504
1950s	458	10.2%	2,236
1960s	43	1.0%	434
1970s	36	0.8%	455
1980s	314	7.0%	1,533
1990s	475	10.6%	2,621
2000s	150	3.3%	1,444
2010s	851	18.9%	3,888
2020s (to date)	643	14.3%	2,934

The set is the 4,497 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

North America, against 1961-1990

Annual mean daily maximum, daily minimum and day-night range of the long-record stations in North America as differences from each station's own 1961-1990 mean, 1951 to 2025. 2,498 stations in 72 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, North America
Year	Daily maximum	Daily minimum	Day-night range (maximum minus minimum)
1951	-0.21 C	-0.30 C	+0.09 C
1952	+0.33 C	+0.03 C	+0.29 C
1953	+0.88 C	+0.51 C	+0.37 C
1954	+0.65 C	+0.22 C	+0.42 C
1955	-0.15 C	-0.35 C	+0.20 C
1956	+0.04 C	-0.43 C	+0.46 C
1957	+0.13 C	+0.48 C	-0.34 C
1958	+0.04 C	+0.19 C	-0.15 C
1959	+0.16 C	+0.03 C	+0.12 C
1960	-0.01 C	-0.06 C	+0.05 C
1961	-0.08 C	-0.10 C	+0.02 C
1962	+0.08 C	-0.02 C	+0.10 C
1963	+0.35 C	-0.01 C	+0.36 C
1964	-0.08 C	-0.35 C	+0.27 C
1965	-0.23 C	-0.12 C	-0.11 C
1966	-0.23 C	-0.37 C	+0.14 C
1967	+0.05 C	-0.06 C	+0.11 C
1968	-0.24 C	-0.30 C	+0.06 C
1969	-0.18 C	+0.01 C	-0.20 C
1970	-0.19 C	-0.14 C	-0.05 C
1971	-0.40 C	-0.40 C	-0.01 C
1972	-0.51 C	-0.39 C	-0.12 C
1973	-0.08 C	+0.25 C	-0.34 C
1974	+0.03 C	-0.08 C	+0.11 C
1975	-0.43 C	-0.31 C	-0.12 C
1976	-0.08 C	-0.58 C	+0.50 C
1977	+0.38 C	+0.29 C	+0.09 C
1978	-0.18 C	-0.05 C	-0.14 C
1979	-0.24 C	-0.13 C	-0.11 C
1980	+0.25 C	+0.19 C	+0.06 C
1981	+0.66 C	+0.67 C	0.00 C
1982	-0.40 C	-0.08 C	-0.32 C
1983	-0.15 C	+0.35 C	-0.50 C
1984	-0.07 C	+0.12 C	-0.18 C
1985	-0.26 C	-0.14 C	-0.13 C
1986	+0.46 C	+0.68 C	-0.22 C
1987	+0.63 C	+0.59 C	+0.04 C
1988	+0.49 C	+0.10 C	+0.39 C
1989	-0.04 C	-0.18 C	+0.14 C
1990	+0.68 C	+0.57 C	+0.11 C
1991	+0.43 C	+0.69 C	-0.25 C
1992	-0.09 C	+0.25 C	-0.34 C
1993	-0.22 C	+0.18 C	-0.41 C
1994	+0.28 C	+0.39 C	-0.11 C
1995	+0.27 C	+0.54 C	-0.27 C
1996	-0.14 C	+0.01 C	-0.16 C
1997	+0.02 C	+0.42 C	-0.40 C
1998	+0.69 C	+1.37 C	-0.68 C
1999	+0.52 C	+0.45 C	+0.07 C
2000	+0.42 C	+0.62 C	-0.21 C
2001	+0.50 C	+0.77 C	-0.26 C
2002	+0.52 C	+0.76 C	-0.24 C
2003	+0.48 C	+0.79 C	-0.31 C
2004	+0.30 C	+0.85 C	-0.56 C
2005	+0.64 C	+0.99 C	-0.35 C
2006	+0.79 C	+0.93 C	-0.14 C
2007	+0.57 C	+0.78 C	-0.21 C
2008	-0.10 C	0.00 C	-0.10 C
2009	-0.09 C	+0.25 C	-0.35 C
2010	+0.14 C	+0.75 C	-0.61 C
2011	+0.31 C	+0.60 C	-0.29 C
2012	+1.00 C	+1.01 C	-0.01 C
2013	-0.04 C	+0.42 C	-0.47 C
2014	+0.30 C	+0.70 C	-0.40 C
2015	+0.96 C	+1.46 C	-0.50 C
2016	+1.41 C	+1.86 C	-0.45 C
2017	+0.96 C	+1.35 C	-0.39 C
2018	+0.56 C	+1.25 C	-0.69 C
2019	+0.31 C	+1.04 C	-0.73 C
2020	+0.95 C	+1.26 C	-0.30 C
2021	+0.84 C	+1.23 C	-0.39 C
2022	+0.67 C	+0.76 C	-0.09 C
2023	+0.92 C	+1.45 C	-0.54 C
2024	+1.41 C	+1.90 C	-0.49 C
2025	+1.04 C	+1.41 C	-0.37 C

From 1951 to 2025, the daily maximum in North America changed by +0.12 C per decade (+0.21 F) (95 percent interval +0.05 to +0.18 C) and the daily minimum by +0.21 C per decade (+0.38 F) (95 percent interval +0.15 to +0.27 C), from 2,498 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 -0.07 C), which means the range narrowed.

Trends per decade

Trends in the daily maximum, the daily minimum and the day-night range, North America
Measure	Trend per decade (C)	95% interval (C)	Years	Stations
Daily maximum	+0.12	+0.05 to +0.18	1951 to 2025	2,498
Daily minimum	+0.21	+0.15 to +0.27	1951 to 2025	2,498
Day-night range (maximum minus minimum)	-0.09	-0.12 to -0.07	1951 to 2025	2,498

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: North America

Up to 1,715 stations per measure, fixed sets

In North America, the mean number of days with a daily maximum at or above 30 C (86 F) per year at 1,715 stations rose from 60.2 to 65.4 between the 1960s and the 2010s; the 2020s so far (6 years) average 67.9.
In North America, the mean number of days with a daily maximum at or above 35 C (95 F) per year at 1,715 stations rose from 12.8 to 15.4 between the 1960s and the 2010s; the 2020s so far (6 years) average 16.7.
In North America, the mean number of days with a daily maximum at or above 40 C (104 F) per year at 1,715 stations rose from 1.2 to 1.7 between the 1960s and the 2010s; the 2020s so far (6 years) average 2.2.
In North America, the mean number of warm nights, with a daily minimum at or above 20 C (68 F) per year at 1,658 stations rose from 24.2 to 33.8 between the 1960s and the 2010s; the 2020s so far (6 years) average 33.9.
In North America, the mean number of frost days, with a daily minimum at or below 0 C (32 F) per year at 1,658 stations fell from 125.4 to 116.5 between the 1960s and the 2010s; the 2020s so far (6 years) average 113.7.
In North America, the mean number of ice days, with a daily maximum at or below 0 C (32 F) per year at 1,715 stations fell from 32.4 to 31.4 between the 1960s and the 2010s; the 2020s so far (6 years) average 26.3.

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), North America. The same 1,715 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), North America. The same 1,715 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), North America. The same 1,715 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), North America. The same 1,658 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), North America. The same 1,658 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), North America. The same 1,715 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: North America

3,634 stations in the annual rain series

In North America, annual rain at 3,634 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 +1.3 percent per decade (95 percent interval +0.4 to +2.2), fitted to 75 years from 1951 to 2025.
In North America, 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 2,315 stations.
In North America, the mean number of days with 25 mm (1.0 in) or more of rain per year rose from 7.63 to 8.44 between the 1960s and the 2020s.
In North America, the mean number of days with 50 mm (2.0 in) or more of rain per year rose from 1.58 to 1.84 between the 1960s and the 2020s.
In North America, 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 North America, 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 36.7 days between the 1960s and the 2020s, over the same 2,315 stations in every decade.

Annual rain against the 1961-1990 mean

Annual rain in North America as a percent difference from each station's own 1961-1990 mean, for 3,634 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, North America
Year	Annual rain, percent difference from the mean
1951	3.6%
1952	-7.7%
1953	-12.8%
1954	-8.2%
1955	-8.2%
1956	-18.9%
1957	4.5%
1958	7.2%
1959	-0.9%
1960	-4.8%
1961	-3.7%
1962	-6.5%
1963	-5.1%
1964	-6.3%
1965	2.4%
1966	-11.6%
1967	4.6%
1968	-4.3%
1969	4.1%
1970	-1.0%
1971	-2.1%
1972	1.5%
1973	5.7%
1974	-2.8%
1975	-1.3%
1976	-10.7%
1977	-1.5%
1978	6.6%
1979	8.3%
1980	-1.7%
1981	0.4%
1982	9.2%
1983	18.4%
1984	1.1%
1985	-0.9%
1986	5.5%
1987	-0.1%
1988	-10.7%
1989	-5.2%
1990	6.3%
1991	9.0%
1992	6.3%
1993	12.8%
1994	1.9%
1995	6.1%
1996	8.0%
1997	9.0%
1998	15.4%
1999	-2.5%
2000	0.6%
2001	-3.0%
2002	-6.1%
2003	0.1%
2004	10.8%
2005	8.7%
2006	1.0%
2007	-3.5%
2008	6.3%
2009	-0.4%
2010	7.7%
2011	-2.5%
2012	-6.0%
2013	4.5%
2014	3.1%
2015	11.4%
2016	6.7%
2017	8.3%
2018	11.0%
2019	18.6%
2020	-5.6%
2021	1.0%
2022	-2.2%
2023	7.3%
2024	3.0%
2025	-1.2%

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, North America, 1960s to 2020s, for 2,315 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, North America, 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, North America, 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, North America, 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, North America, 1960s to 2020s, over the same 2,315 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

North America, 1961-1990 against 2011-2025

Change in annual mean temperature from 1961-1990 to 2011-2025 at 600 stations in North America, one dot per station (the stations with the most complete years, at most one per half degree cell). The scope figures use 2,146 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, North America
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 2,146 stations in North America with long records, the mean annual temperature was 11.1 C (51.9 F) in 1961-1990, 11.7 C (53.0 F) in 1991-2020 and 12.0 C (53.7 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 873.0 mm (34.4 in) in 1961-1990, 902.0 mm (35.5 in) in 1991-2020 and 902.5 mm (35.5 in) in 2011-2025, a change of +3.4% 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, North America
Period	Mean temperature	Annual rain
1961-1990	11.1 C (51.9 F)	873.0 mm (34.4 in)
1991-2020	11.7 C (53.0 F)	902.0 mm (35.5 in)
2011-2025	12.0 C (53.7 F)	902.5 mm (35.5 in)
Change, 1991-2020 against 1961-1990	+0.6 C (+1.0 F)	+3.3%
Change, 2011-2025 against 1961-1990	+1.0 C (+1.7 F)	+3.4%

Based on 2,146 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: North America

7 lists of 10

In North America, the longest run of hot days in a row in the data is 200 days, at Badiraguato (Smn) (Mexico), from 21 March 1979 to 6 October 1979.
In North America, the longest run of days in a row at or above 40 C in the data is 144 days, at El Mayor (Mexico), from 26 May 2010 to 16 October 2010.
In North America, the longest run of frost days in a row in the data is 345 days, at Isachsen (Canada), from 21 August 1960 to 31 July 1961.
In North America, the longest run of ice days in a row in the data is 293 days, at Alert (Canada), from 25 August 1956 to 13 June 1957.
In North America, the longest run of dry days in a row in the data is 350 days, at San Luis Rio Colorado (Smn) (Mexico), in 1943.
In North America, the longest run of wet days in a row in the data is 161 days, at San Jeronimo (Mexico), in 1995.
In North America, the longest run of longest run of nights at or above 25 c in the data is 178 days, at San Juan L M Marin Intl AP (Puerto Rico [United States]), from 5 May 2024 to 29 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, North America: the 10 longest runs
Rank	Station	Country	Length	When
1	Badiraguato (Smn)	Mexico	200 days	21 March to 6 October 1979
2	Navojoa (Ffcc)	Mexico	199 days	5 May to 19 November 1934
3	Ojinaga (Smn)	Mexico	198 days	24 April to 7 November 1946
4	San Juan Peyotan	Mexico	198 days	15 February to 31 August 2002
5	Totolapa (Smn)	Mexico	197 days	22 November 1957 to 6 June 1958
6	Ayutla (Cfe)	Mexico	197 days	1 December 1973 to 15 June 1974
7	Antunez	Mexico	197 days	5 February to 20 August 1998
8	El Dorado	Mexico	196 days	31 October 1993 to 14 May 1994
9	Buctzotz	Mexico	196 days	7 May to 18 November 2003
10	Mozomboa	Mexico	195 days	10 May to 20 November 1992

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, North America: the 10 longest runs
Rank	Station	Country	Length	When
1	El Mayor	Mexico	144 days	26 May to 16 October 2010
2	Ayutla (Cfe)	Mexico	139 days	26 January to 13 June 1974
3	Aratichanguio	Mexico	136 days	7 February to 22 June 2011
4	Navojoa (Ffcc)	Mexico	133 days	27 June to 6 November 1940
5	Ciudad Obregon (Ffcc)	Mexico	123 days	11 May to 10 September 1943
6	Death Valley Np	United States	121 days	31 May to 28 September 1974
7	El Cajon	Mexico	120 days	17 February to 16 June 2009
8	Mohawk	United States	119 days	2 June to 28 September 1911
9	Greenland Rch	United States	118 days	27 May to 21 September 1960
10	Santiago Astata (Smn)	Mexico	118 days	9 February to 6 June 1978

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), North America: the 10 longest runs
Rank	Station	Country	Length	When
1	Isachsen	Canada	345 days	21 August 1960 to 31 July 1961
2	Clyde A	Canada	342 days	25 July 1965 to 1 July 1966
3	Resolute Cars	Canada	332 days	18 August 1975 to 14 July 1976
4	Alert	Canada	328 days	14 August 1951 to 6 July 1952
5	Rea Point	Canada	327 days	6 August 1978 to 28 June 1979
6	Dewar Lakes	Canada	324 days	27 August 1971 to 15 July 1972
7	Barrow AP	United States	323 days	9 August 1955 to 26 June 1956
8	Nottingham Island	Canada	322 days	6 August 1942 to 23 June 1943
9	Mould Bay A	Canada	318 days	13 August 1953 to 26 June 1954
10	Cape Hooper	Canada	318 days	14 August 1972 to 27 June 1973

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), North America: the 10 longest runs
Rank	Station	Country	Length	When
1	Alert	Canada	293 days	25 August 1956 to 13 June 1957
2	Isachsen	Canada	291 days	20 August 1956 to 6 June 1957
3	Resolute Cars	Canada	284 days	27 August 1956 to 6 June 1957
4	Mackar Inlet	Canada	282 days	6 September 1979 to 13 June 1980
5	Mould Bay A	Canada	281 days	22 August 1961 to 29 May 1962
6	Station Nord	Greenland [Denmark]	281 days	29 August 1963 to 4 June 1964
7	Pelly Bay	Canada	280 days	29 August 1961 to 4 June 1962
8	Dewar Lakes	Canada	279 days	11 September 1977 to 16 June 1978
9	Eureka	Canada	279 days	6 September 1979 to 10 June 1980
10	Rea Point	Canada	273 days	11 September 1971 to 9 June 1972

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, North America: the 10 longest runs
Rank	Station	Country	Length	When
1	San Luis Rio Colorado (Smn)	Mexico	350 days	within 1943
2	Santa Rosalita	Mexico	348 days	within 1990
3	El Rosario	Mexico	347 days	within 1955
4	Ascencion (Smn)	Mexico	342 days	within 1911
5	Jesus Maria (Smn)	Mexico	342 days	within 1961
6	La Poza Grande	Mexico	342 days	within 1979
7	San Jose de Gracia	Mexico	342 days	within 1988
8	Santa Rosalia (Dge)	Mexico	342 days	within 1988
9	El Socorro	Mexico	342 days	within 2010
10	El Rosarito	Mexico	341 days	within 1979

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, North America: the 10 longest runs
Rank	Station	Country	Length	When
1	San Jeronimo	Mexico	161 days	within 1995
2	Zitlaltepec	Mexico	121 days	within 1962
3	Finca Chayabe	Mexico	94 days	within 1960
4	Pico del Este	Puerto Rico [United States]	94 days	within 1999
5	Kawainui Upper	United States	93 days	within 1925
6	El Ojito de Camellones	Mexico	92 days	within 1999
7	Temascaltepec	Mexico	87 days	within 2008
8	Mt Waialeale 1047	United States	86 days	within 1951
9	San Lorenzo 1SW	Puerto Rico [United States]	85 days	within 2005
10	Kopiluila	United States	82 days	within 1914

Longest run of nights at or above 25 C

Longest run of nights at or above 25 C, North America: the 10 longest runs
Rank	Station	Country	Length	When
1	San Juan L M Marin Intl AP	Puerto Rico [United States]	178 days	5 May to 29 October 2024
2	Cayo Arenas	Mexico	173 days	18 April to 7 October 1935
3	Copainala	Mexico	159 days	7 June to 12 November 1962
4	Isla Perez	Mexico	158 days	25 May to 29 October 1970
5	Apatzingan (Smn)	Mexico	157 days	8 March to 11 August 1977
6	Key West NAS	United States	136 days	3 June to 16 October 2024
7	Cayo Arcas	Mexico	134 days	10 May to 20 September 1938
8	Porfirio Diaz	Mexico	133 days	5 June to 15 October 1978
9	Zaragoza (Smn)	Mexico	131 days	9 May to 16 September 1962
10	La Alberca	Mexico	131 days	30 April to 7 September 2008

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: North America

1,528 stations, fixed set

In North America, 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 North America, 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 North America, 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, North America, 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, North America, 1960s to 2020s, the same 1,528 stations in every decade.

Snowfall per season

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

Mean seasonal snowfall by decade, North America
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, North America
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: North America

5 lists of 10

In North America, the largest reported one day rise in the daily maximum is 44.4 C (79.9 F), at Entrance (Canada) on 25 February 1957.
In North America, 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 North America, the largest reported one day rise in the daily minimum is 45.0 C (81.0 F), at Fort McPherson (Canada) on 28 December 1927.
In North America, 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 North America, 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, North America
Rank	Station	Country	Value	Date
1	Entrance	Canada	44.4 C (79.9 F)	25 February 1957
2	University Camp	United States	43.3 C (77.9 F)	3 February 2011
3	Klintonel	Canada	38.9 C (70.0 F)	29 December 1917
4	Fort McPherson	Canada	38.9 C (70.0 F)	27 December 1927
5	Manley Hot Springs	United States	38.9 C (70.0 F)	1 January 1981
6	Big Delta AP	United States	38.8 C (69.8 F)	17 January 1980
7	Ekalaka	United States	38.3 C (68.9 F)	17 March 1902
8	Loma	United States	38.3 C (68.9 F)	15 January 1972
9	Usta 8 WNW Kelly Rch	United States	38.3 C (68.9 F)	23 December 1989
10	Augusta	United States	37.7 C (67.9 F)	29 December 1917

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, North America
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, North America
Rank	Station	Country	Value	Date
1	Fort McPherson	Canada	45.0 C (81.0 F)	28 December 1927
2	Pokegama Dam	United States	43.9 C (79.0 F)	9 January 1894
3	Wabasca	Canada	42.8 C (77.0 F)	2 January 1918
4	Cut Bank AP	United States	42.2 C (76.0 F)	17 December 1979
5	Hudson Hope	Canada	41.7 C (75.1 F)	25 January 1934
6	St Come	Canada	40.6 C (73.1 F)	12 February 1951
7	Stanford	United States	40.6 C (73.1 F)	23 December 1989
8	High Prairie	Canada	40.5 C (72.9 F)	25 January 1934
9	Aniak AP	United States	40.5 C (72.9 F)	17 March 1971
10	Pennant	Canada	40.5 C (72.9 F)	16 January 1972

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, North America
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	Maniwaki 2	Canada	40.0 C (72.0 F)	2 January 1918
7	Manouan Sanmaur	Canada	38.9 C (70.0 F)	6 March 1920
8	Fort Good Hope 2	Canada	38.9 C (70.0 F)	2 March 1928
9	East Anaconda	United States	38.4 C (69.1 F)	16 December 1924
10	Great Falls AP	United States	38.4 C (69.1 F)	31 January 1989

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, North America
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: North America

6,911 stations with a 1961-1990 record

In North America, the share of stations with a hot and dry summer is shown for each year from 1893 to 2026, for 6,911 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 North America, 9.1% of station summers in 1961-1990 were hot and dry (183,690 station summers).
In North America, 14.7% of station summers in 2012-2026 were hot and dry (38,332 station summers).
In North America, 1894 had the highest share: 42.9% of 373 stations (160).

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, North America, 1893 to 2026, out of 6,911 stations with at least 20 complete summers in 1961-1990. Dashed line: the 1961-1990 level in this data, 9.1% of station summers. The most in one year was 42.9%. Dashed line: 1961-1990 level, 9.1%.

Share of stations with a hot and dry summer by year, North America
Summer	Stations with a hot and dry summer
1893	17.1%
1894	42.9%
1895	9.0%
1896	7.8%
1897	6.7%
1898	10.0%
1899	15.2%
1900	11.6%
1901	29.1%
1902	12.3%
1903	2.3%
1904	3.0%
1905	4.7%
1906	4.3%
1907	3.8%
1908	8.8%
1909	7.5%
1910	19.5%
1911	15.1%
1912	2.0%
1913	27.8%
1914	13.7%
1915	4.0%
1916	9.1%
1917	11.1%
1918	21.0%
1919	21.7%
1920	3.8%
1921	16.0%
1922	18.1%
1923	8.2%
1924	16.2%
1925	19.5%
1926	9.8%
1927	3.8%
1928	6.1%
1929	15.9%
1930	38.4%
1931	23.5%
1932	11.2%
1933	31.8%
1934	30.0%
1935	11.5%
1936	41.7%
1937	14.0%
1938	13.0%
1939	13.8%
1940	19.8%
1941	7.9%
1942	6.6%
1943	16.7%
1944	15.7%
1945	6.4%
1946	8.1%
1947	7.1%
1948	10.0%
1949	13.7%
1950	3.5%
1951	10.8%
1952	20.5%
1953	21.8%
1954	21.1%
1955	10.4%
1956	13.4%
1957	13.4%
1958	7.8%
1959	14.7%
1960	14.6%
1961	13.5%
1962	9.6%
1963	7.0%
1964	8.3%
1965	2.8%
1966	10.3%
1967	9.3%
1968	4.2%
1969	6.7%
1970	13.2%
1971	5.3%
1972	2.4%
1973	7.4%
1974	5.5%
1975	4.4%
1976	9.0%
1977	7.5%
1978	8.3%
1979	5.2%
1980	25.5%
1981	7.8%
1982	12.4%
1983	20.7%
1984	7.4%
1985	5.9%
1986	8.4%
1987	8.8%
1988	24.6%
1989	6.7%
1990	7.1%
1991	13.0%
1992	3.7%
1993	10.5%
1994	16.2%
1995	10.1%
1996	10.8%
1997	9.1%
1998	16.1%
1999	10.0%
2000	14.0%
2001	11.8%
2002	23.5%
2003	14.2%
2004	6.1%
2005	10.3%
2006	17.9%
2007	16.6%
2008	7.0%
2009	12.6%
2010	8.6%
2011	23.1%
2012	31.4%
2013	7.0%
2014	3.3%
2015	9.0%
2016	15.3%
2017	12.5%
2018	14.3%
2019	10.2%
2020	20.4%
2021	17.7%
2022	14.0%
2023	15.5%
2024	15.7%
2025	15.5%
2026	17.7%

The ten most extreme station summers

The most extreme hot and dry station summers, North America
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	Presa Pucuato	Mexico	1993	+4.6 C (+8.2 F)	64%
3	Kula Sanatorium 267	United States	1940	+3.2 C (+5.8 F)	128%
4	El Copital	Mexico	1997	+4.5 C (+8.2 F)	61%
5	Kula Sanatorium 267	United States	1937	+3.1 C (+5.6 F)	143%
6	Spicer	United States	1919	+4.8 C (+8.7 F)	21%
7	Crawfordsville Pwr Plt	United States	1933	+4.4 C (+7.8 F)	31%
8	Champoton (Smn)	Mexico	1923	+5.0 C (+9.0 F)	63%
9	Bull Harbour	Canada	1923	+4.6 C (+8.2 F)	34%
10	Crescent City 3 NNW	United States	1932	+4.9 C (+8.7 F)	33%

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.

Countries in North America

5 with station records

Decade	Mean days per year
1960s	60.2
1970s	60.5
1980s	62.4
1990s	58.5
2000s	61.3
2010s	65.4
2020s (so far, 6 years)	67.9

Decade	Mean days per year
1960s	12.8
1970s	12.5
1980s	15.2
1990s	13.0
2000s	14.3
2010s	15.4
2020s (so far, 6 years)	16.7

Decade	Mean days per year
1960s	24.2
1970s	25.4
1980s	27.9
1990s	28.1
2000s	29.5
2010s	33.8
2020s (so far, 6 years)	33.9

Decade	Mean days per year
1960s	125.4
1970s	124.0
1980s	120.9
1990s	116.9
2000s	117.6
2010s	116.5
2020s (so far, 6 years)	113.7

Decade	Mean days per year
1960s	32.4
1970s	33.8
1980s	31.3
1990s	28.6
2000s	29.9
2010s	31.4
2020s (so far, 6 years)	26.3

Decade	Mean days per year
1960s	7.63
1970s	8.24
1980s	8.03
1990s	8.75
2000s	8.40
2010s	9.00
2020s	8.44

Decade	Mean days per year
1960s	1.58
1970s	1.69
1980s	1.66
1990s	1.86
2000s	1.80
2010s	1.99
2020s	1.84

Decade	Mean days per year
1960s	0.15
1970s	0.16
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	33.7 days
1990s	33.7 days
2000s	35.6 days
2010s	34.2 days
2020s	36.7 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 North America