Max Threshold Days by Year (USC00325638)

20 fixed thresholds counted per year at Max (USC00325638): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Max Thresholds

Max: days with a maximum temperature at or above 30 C (86 F) in 93 years, most in 1936 with 68.
Max: days with a maximum temperature at or above 90 F (32.2 C) in 93 years, most in 1936 with 50.
Max: days with a maximum temperature at or below 0 C (32 F) in 93 years, most in 1950 with 129.
Max: days with 10 mm (0.39 in) or more of precipitation in 89 years, most in 2013 with 23.
20 fixed thresholds have at least one qualifying day at Max.

Days at or above 30 C (86 F)

93 years with a qualifying day

Days per year at Max with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 68 in 1936.

Days at or above 30 C (86 F) per year at Max
Year	Days	Decade average
1930	43	43.5
1931	50	43.5
1932	41	43.5
1933	42	43.5
1934	51	43.5
1935	19	43.5
1936	68	43.5
1937	51	43.5
1938	33	43.5
1939	37	43.5
1940	36	28.5
1941	31	28.5
1942	18	28.5
1943	20	28.5
1945	18	28.5
1946	27	28.5
1948	34	28.5
1949	44	28.5
1950	21	24.8
1951	17	24.8
1952	29	24.8
1953	27	24.8
1955	31	24.8
1956	14	24.8
1957	24	24.8
1958	25	24.8
1959	35	24.8
1960	34	28
1961	54	28
1962	12	28
1964	27	28
1965	9	28
1966	29	28
1967	40	28
1968	23	28
1969	24	28
1970	35	27.6
1971	25	27.6
1972	24	27.6
1973	26	27.6
1974	38	27.6
1975	22	27.6
1976	32	27.6
1977	23	27.6
1978	27	27.6
1979	24	27.6
1980	36	34.2
1981	26	34.2
1982	23	34.2
1983	55	34.2
1984	48	34.2
1985	17	34.2
1986	21	34.2
1987	25	34.2
1988	53	34.2
1989	38	34.2
1990	30	19.3
1991	25	19.3
1992	21	19.3
1993	6	19.3
1994	15	19.3
1995	22	19.3
1996	20	19.3
1997	21	19.3
1998	16	19.3
1999	17	19.3
2000	16	25.1
2001	36	25.1
2002	24	25.1
2003	28	25.1
2004	10	25.1
2005	24	25.1
2006	43	25.1
2007	35	25.1
2008	19	25.1
2009	16	25.1
2010	21	22.5
2011	22	22.5
2012	33	22.5
2013	21	22.5
2014	9	22.5
2015	26	22.5
2016	21	22.5
2017	33	22.5
2018	27	22.5
2019	12	22.5
2020	23	27.3
2021	48	27.3
2022	27	27.3
2023	22	27.3
2024	22	27.3
2025	16	27.3
2026	33	27.3

For each year, a bar from the first to the last day at Max meeting 30 C (86 F).

First to last qualifying date each year at Max
Year	First date	Last date
1930	1930-05-04	1930-09-23
1931	1931-05-15	1931-09-10
1932	1932-05-14	1932-09-09
1933	1933-06-01	1933-09-17
1934	1934-04-21	1934-10-12
1935	1935-07-01	1935-09-22
1936	1936-05-12	1936-10-08
1937	1937-05-29	1937-09-14
1938	1938-06-18	1938-10-04
1939	1939-05-06	1939-09-19
1940	1940-05-12	1940-09-18
1941	1941-05-19	1941-09-19
1942	1942-07-08	1942-09-11
1943	1943-06-19	1943-09-30
1945	1945-06-21	1945-09-05
1946	1946-06-15	1946-09-17
1948	1948-05-19	1948-09-19
1949	1949-04-30	1949-09-25
1950	1950-06-06	1950-09-07
1951	1951-05-23	1951-08-04
1952	1952-04-26	1952-09-28
1953	1953-06-12	1953-10-02
1955	1955-05-03	1955-09-06
1956	1956-05-22	1956-09-27
1957	1957-07-02	1957-10-03
1958	1958-05-12	1958-09-02
1959	1959-06-04	1959-09-14
1960	1960-06-01	1960-09-21
1961	1961-05-31	1961-09-01
1962	1962-04-25	1962-09-03
1964	1964-05-20	1964-08-19
1965	1965-07-27	1965-08-13
1966	1966-05-21	1966-09-12
1967	1967-05-22	1967-09-11
1968	1968-06-02	1968-09-15
1969	1969-05-27	1969-09-14
1970	1970-05-18	1970-09-06
1971	1971-06-14	1971-09-03
1972	1972-05-17	1972-09-20
1973	1973-06-02	1973-09-01
1974	1974-06-20	1974-08-25
1975	1975-06-26	1975-08-29
1976	1976-06-03	1976-09-12
1977	1977-04-10	1977-08-10
1978	1978-05-23	1978-09-11
1979	1979-05-17	1979-09-17
1980	1980-04-21	1980-09-08
1981	1981-06-28	1981-09-13
1982	1982-05-04	1982-09-11
1983	1983-05-26	1983-09-27
1984	1984-05-16	1984-09-18
1985	1985-05-04	1985-08-22
1986	1986-05-05	1986-08-30
1987	1987-04-19	1987-08-11
1988	1988-05-28	1988-08-24
1989	1989-06-07	1989-10-01
1990	1990-04-22	1990-09-26
1991	1991-06-12	1991-09-08
1992	1992-05-07	1992-10-02
1993	1993-05-14	1993-08-25
1994	1994-05-18	1994-09-10
1995	1995-06-14	1995-09-05
1996	1996-06-09	1996-09-06
1997	1997-06-01	1997-10-03
1998	1998-07-11	1998-09-17
1999	1999-05-29	1999-09-01
2000	2000-06-08	2000-08-25
2001	2001-04-29	2001-09-06
2002	2002-06-01	2002-09-17
2003	2003-05-30	2003-09-09
2004	2004-07-15	2004-09-19
2005	2005-06-19	2005-10-02
2006	2006-05-19	2006-09-14
2007	2007-05-19	2007-09-30
2008	2008-07-01	2008-09-01
2009	2009-06-26	2009-09-20
2010	2010-07-01	2010-08-28
2011	2011-06-30	2011-10-03
2012	2012-04-25	2012-09-30
2013	2013-05-14	2013-09-07
2014	2014-05-25	2014-09-27
2015	2015-06-27	2015-10-11
2016	2016-05-06	2016-08-29
2017	2017-06-02	2017-09-13
2018	2018-05-17	2018-09-08
2019	2019-06-04	2019-09-17
2020	2020-06-17	2020-08-26
2021	2021-06-04	2021-10-06
2022	2022-06-19	2022-09-13
2023	2023-06-04	2023-09-04
2024	2024-07-12	2024-09-30
2025	2025-05-11	2025-08-31
2026	2026-05-26	2026-09-11

Every Fixed Threshold

Fixed thresholds at Max
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	93	68	1936	33
35 C (95 F): Days	83	26	1936	9
40 C (104 F): Days	13	8	1931	1
90 F (32.2 C): Days	93	50	1936	21
100 F (37.8 C): Days	37	16	1936	2
110 F (43.3 C): Days	2	1	1936	1
0 C (32 F): Ice days (max	93	129	1950	51
0 C (32 F): Frost days (min	82	217	1959	115
-10 C (14 F): Days with min	82	135	1955	48
-20 C (-4 F): Days with min	82	80	1936	17
-30 C (-22 F): Days with min	78	36	1936	4
-40 C (-40 F): Days with min	1	3	1936	3
20 C (68 F): Tropical nights (min	40	8	1936	3
25 C (77 F): Days with min	2	1	1936	1
10 mm (0.39 in): Days with 10 mm or more rain	89	23	2013	9
25 mm (0.98 in): Days with 25 mm or more rain	85	7	1994	3
50 mm (1.97 in): Days with 50 mm or more rain	24	2	1970	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1951	1
10 cm (3.9 in): Days with 10 cm or more snowfall	65	8	1996	1
25 cm (9.8 in): Days with 25 cm or more snowfall	9	2	2008	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1930.

Download the Data

Data for Max threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Max Threshold Days by Year (USC00325638)

Key Facts for Max Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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