Atkinson 3SW Threshold Days by Year (USC00250420)

19 fixed thresholds counted per year at Atkinson 3SW (USC00250420): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Atkinson 3SW Thresholds

Atkinson 3SW: days with 10 mm (0.39 in) or more of precipitation in 104 years, most in 1951 with 31.
Atkinson 3SW: days with 25 mm (0.98 in) or more of precipitation in 103 years, most in 2018 with 12.
Atkinson 3SW: nights with a minimum temperature at or below 0 C (32 F) in 102 years, most in 1928 with 197.
Atkinson 3SW: nights with a minimum temperature at or below -10 C (14 F) in 102 years, most in 1978 with 89.
19 fixed thresholds have at least one qualifying day at Atkinson 3SW.

Days at or above 30 C (86 F)

96 years with a qualifying day

Days per year at Atkinson 3SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 81 in 1931.

Days at or above 30 C (86 F) per year at Atkinson 3SW
Year	Days	Decade average
1907	33	44.5
1908	56	44.5
1910	61	53.9
1911	65	53.9
1912	43	53.9
1913	71	53.9
1914	61	53.9
1915	21	53.9
1916	64	53.9
1917	42	53.9
1918	59	53.9
1919	52	53.9
1920	50	51.8
1921	71	51.8
1924	29	51.8
1927	54	51.8
1928	53	51.8
1929	54	51.8
1931	81	75.2
1933	80	75.2
1936	76	75.2
1937	70	75.2
1938	69	75.2
1947	61	59.7
1948	61	59.7
1949	57	59.7
1950	26	47.1
1951	25	47.1
1952	58	47.1
1953	39	47.1
1954	54	47.1
1955	68	47.1
1956	64	47.1
1957	38	47.1
1958	42	47.1
1959	57	47.1
1960	42	44.4
1961	44	44.4
1962	30	44.4
1963	61	44.4
1964	49	44.4
1965	32	44.4
1966	53	44.4
1967	39	44.4
1968	57	44.4
1969	37	44.4
1970	74	57.2
1971	54	57.2
1972	56	57.2
1973	68	57.2
1974	63	57.2
1975	66	57.2
1976	56	57.2
1977	36	57.2
1978	54	57.2
1979	45	57.2
1980	72	62.3
1981	47	62.3
1982	44	62.3
1983	77	62.3
1984	66	62.3
1985	62	62.3
1988	79	62.3
1989	51	62.3
1990	68	52.1
1991	77	52.1
1992	24	52.1
1993	29	52.1
1994	47	52.1
1995	65	52.1
1996	44	52.1
1997	54	52.1
1998	59	52.1
1999	54	52.1
2000	69	62
2001	59	62
2002	77	62
2003	66	62
2004	45	62
2005	55	62
2006	62	62
2007	63	62
2012	80	51.3
2013	53	51.3
2014	36	51.3
2015	51	51.3
2016	56	51.3
2018	47	51.3
2019	36	51.3
2020	67	60.7
2021	66	60.7
2022	67	60.7
2023	59	60.7
2024	55	60.7
2025	54	60.7
2026	57	60.7

For each year, a bar from the first to the last day at Atkinson 3SW meeting 30 C (86 F).

First to last qualifying date each year at Atkinson 3SW
Year	First date	Last date
1907	1907-05-11	1907-09-18
1908	1908-04-12	1908-10-15
1910	1910-03-21	1910-10-16
1911	1911-05-09	1911-09-22
1912	1912-05-26	1912-09-08
1913	1913-04-30	1913-09-07
1914	1914-05-09	1914-10-17
1915	1915-05-10	1915-10-10
1916	1916-04-11	1916-10-03
1917	1917-05-16	1917-09-08
1918	1918-05-04	1918-10-16
1919	1919-06-21	1919-09-26
1920	1920-06-08	1920-10-09
1921	1921-05-22	1921-10-15
1924	1924-04-14	1924-10-01
1927	1927-04-26	1927-10-25
1928	1928-05-01	1928-10-10
1929	1929-05-14	1929-09-22
1931	1931-05-15	1931-09-19
1933	1933-05-18	1933-10-14
1936	1936-04-13	1936-09-22
1937	1937-05-28	1937-09-23
1938	1938-06-05	1938-10-04
1947	1947-06-24	1947-10-21
1948	1948-05-14	1948-09-19
1949	1949-04-25	1949-09-25
1950	1950-05-22	1950-10-30
1951	1951-06-16	1951-10-01
1952	1952-04-27	1952-09-30
1953	1953-05-09	1953-10-18
1954	1954-04-13	1954-09-26
1955	1955-04-19	1955-10-26
1956	1956-05-21	1956-10-16
1957	1957-05-07	1957-08-31
1958	1958-04-16	1958-10-19
1959	1959-05-01	1959-09-09
1960	1960-04-21	1960-10-11
1961	1961-06-09	1961-10-16
1962	1962-04-24	1962-10-10
1963	1963-04-01	1963-10-19
1964	1964-04-16	1964-09-25
1965	1965-04-29	1965-08-25
1966	1966-05-04	1966-10-07
1967	1967-05-22	1967-10-03
1968	1968-03-30	1968-10-14
1969	1969-05-26	1969-09-14
1970	1970-05-17	1970-09-30
1971	1971-04-15	1971-09-14
1972	1972-05-16	1972-09-20
1973	1973-05-18	1973-10-14
1974	1974-06-03	1974-10-10
1975	1975-05-04	1975-10-05
1976	1976-05-19	1976-09-30
1977	1977-04-10	1977-09-09
1978	1978-05-25	1978-10-21
1979	1979-05-07	1979-09-18
1980	1980-04-21	1980-10-10
1981	1981-04-25	1981-09-20
1982	1982-06-27	1982-09-28
1983	1983-05-27	1983-10-27
1984	1984-05-31	1984-09-21
1985	1985-04-11	1985-09-19
1988	1988-04-07	1988-09-26
1989	1989-04-21	1989-09-30
1990	1990-04-22	1990-10-06
1991	1991-04-05	1991-10-17
1992	1992-04-30	1992-10-03
1993	1993-06-10	1993-10-06
1994	1994-04-18	1994-09-19
1995	1995-06-06	1995-10-11
1996	1996-05-16	1996-09-09
1997	1997-05-16	1997-10-02
1998	1998-05-14	1998-09-29
1999	1999-06-04	1999-09-24
2000	2000-05-04	2000-09-30
2001	2001-04-28	2001-10-02
2002	2002-05-29	2002-09-30
2003	2003-04-14	2003-10-22
2004	2004-04-28	2004-09-19
2005	2005-06-06	2005-10-18
2006	2006-04-13	2006-10-07
2007	2007-04-30	2007-10-07
2012	2012-04-02	2012-09-17
2013	2013-04-29	2013-10-03
2014	2014-05-28	2014-09-27
2015	2015-05-03	2015-10-12
2016	2016-05-07	2016-09-25
2018	2018-05-23	2018-09-17
2019	2019-04-21	2019-09-18
2020	2020-06-02	2020-10-07
2021	2021-04-06	2021-09-29
2022	2022-05-13	2022-10-24
2023	2023-04-11	2023-10-03
2024	2024-04-14	2024-10-11
2025	2025-05-10	2025-10-05
2026	2026-03-22	2026-08-31

Every Fixed Threshold

Fixed thresholds at Atkinson 3SW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	96	81	1931	57
35 C (95 F): Days	95	48	1936	12
40 C (104 F): Days	30	16	1936	2
90 F (32.2 C): Days	96	63	1931	36
100 F (37.8 C): Days	69	29	1936	4
110 F (43.3 C): Days	1	4	1936	4
0 C (32 F): Ice days (max	96	88	1978	17
0 C (32 F): Frost days (min	102	197	1928	100
-10 C (14 F): Days with min	102	89	1978	25
-20 C (-4 F): Days with min	100	43	1936	8
-30 C (-22 F): Days with min	34	9	1936	2
20 C (68 F): Tropical nights (min	100	38	2002	7
25 C (77 F): Days with min	10	1	1955	1
10 mm (0.39 in): Days with 10 mm or more rain	104	31	1951	11
25 mm (0.98 in): Days with 25 mm or more rain	103	12	2018	4
50 mm (1.97 in): Days with 50 mm or more rain	63	3	2001	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1966	1
10 cm (3.9 in): Days with 10 cm or more snowfall	97	8	1982	2
25 cm (9.8 in): Days with 25 cm or more snowfall	17	2	1915	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1907.

Download the Data

Data for Atkinson 3SW 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).

Atkinson 3SW Threshold Days by Year (USC00250420)

Key Facts for Atkinson 3SW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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