Atwood Threshold Days by Year (USC00140439)

21 fixed thresholds counted per year at Atwood (USC00140439): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Atwood Thresholds

Atwood: days with 10 mm (0.39 in) or more of precipitation in 99 years, most in 1982 with 33.
Atwood: days with a maximum temperature at or above 30 C (86 F) in 98 years, most in 1934 with 129.
Atwood: days with a maximum temperature at or above 35 C (95 F) in 98 years, most in 1934 with 73.
Atwood: days with a maximum temperature at or above 90 F (32.2 C) in 98 years, most in 1934 with 97.
21 fixed thresholds have at least one qualifying day at Atwood.

Days at or above 30 C (86 F)

98 years with a qualifying day

Days per year at Atwood with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 129 in 1934.

Days at or above 30 C (86 F) per year at Atwood
Year	Days	Decade average
1921	107	84.9
1922	106	84.9
1923	54	84.9
1924	74	84.9
1925	92	84.9
1926	82	84.9
1927	79	84.9
1930	78	101.8
1931	113	101.8
1932	98	101.8
1933	106	101.8
1934	129	101.8
1935	84	101.8
1936	104	101.8
1937	87	101.8
1938	104	101.8
1939	115	101.8
1940	107	92.6
1941	97	92.6
1942	101	92.6
1943	103	92.6
1944	83	92.6
1945	77	92.6
1946	91	92.6
1947	96	92.6
1948	101	92.6
1949	70	92.6
1950	89	91.2
1951	58	91.2
1952	100	91.2
1953	106	91.2
1954	108	91.2
1955	98	91.2
1956	107	91.2
1957	73	91.2
1958	80	91.2
1959	93	91.2
1960	85	88.6
1961	72	88.6
1962	90	88.6
1963	113	88.6
1964	92	88.6
1965	69	88.6
1966	99	88.6
1967	87	88.6
1968	99	88.6
1969	80	88.6
1970	101	83.6
1971	94	83.6
1972	89	83.6
1973	85	83.6
1976	76	83.6
1977	69	83.6
1978	80	83.6
1979	75	83.6
1980	82	78.9
1981	63	78.9
1982	52	78.9
1983	91	78.9
1984	84	78.9
1988	98	78.9
1989	82	78.9
1990	91	75.5
1991	89	75.5
1992	58	75.5
1993	46	75.5
1994	72	75.5
1995	69	75.5
1996	75	75.5
1997	86	75.5
1998	94	75.5
1999	75	75.5
2000	105	93
2001	96	93
2002	100	93
2003	91	93
2004	78	93
2005	107	93
2006	106	93
2007	97	93
2008	81	93
2009	69	93
2011	86	92.8
2012	117	92.8
2013	88	92.8
2014	91	92.8
2015	96	92.8
2016	88	92.8
2017	88	92.8
2018	96	92.8
2019	85	92.8
2020	108	105
2021	101	105
2022	118	105
2023	89	105
2024	100	105
2025	97	105
2026	122	105

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

First to last qualifying date each year at Atwood
Year	First date	Last date
1921	1921-03-18	1921-11-04
1922	1922-05-08	1922-10-27
1923	1923-04-19	1923-09-27
1924	1924-04-14	1924-10-12
1925	1925-04-21	1925-09-29
1926	1926-04-30	1926-10-17
1927	1927-04-26	1927-10-26
1930	1930-04-09	1930-09-23
1931	1931-04-11	1931-10-26
1932	1932-04-05	1932-10-12
1933	1933-05-16	1933-09-30
1934	1934-04-29	1934-10-15
1935	1935-06-08	1935-09-23
1936	1936-04-13	1936-10-12
1937	1937-04-22	1937-10-29
1938	1938-04-18	1938-10-16
1939	1939-04-22	1939-10-23
1940	1940-04-14	1940-10-25
1941	1941-05-13	1941-09-22
1942	1942-04-04	1942-10-11
1943	1943-03-29	1943-10-28
1944	1944-05-12	1944-10-13
1945	1945-04-09	1945-11-05
1946	1946-03-31	1946-10-02
1947	1947-05-03	1947-10-21
1948	1948-04-10	1948-10-15
1949	1949-04-23	1949-09-25
1950	1950-04-22	1950-10-31
1951	1951-04-28	1951-10-02
1952	1952-04-07	1952-10-24
1953	1953-04-22	1953-10-12
1954	1954-04-06	1954-10-08
1955	1955-04-26	1955-10-19
1956	1956-05-08	1956-10-12
1957	1957-06-04	1957-10-04
1958	1958-05-11	1958-10-19
1959	1959-04-06	1959-10-25
1960	1960-04-21	1960-10-05
1961	1961-04-19	1961-10-17
1962	1962-04-19	1962-10-14
1963	1963-03-28	1963-10-10
1964	1964-04-16	1964-10-16
1965	1965-04-22	1965-10-09
1966	1966-05-03	1966-10-13
1967	1967-03-23	1967-10-19
1968	1968-03-30	1968-10-30
1969	1969-05-25	1969-09-30
1970	1970-05-06	1970-10-04
1971	1971-03-30	1971-10-10
1972	1972-03-11	1972-10-01
1973	1973-05-18	1973-10-23
1976	1976-05-19	1976-10-01
1977	1977-04-09	1977-09-17
1978	1978-04-07	1978-10-20
1979	1979-05-05	1979-10-11
1980	1980-04-20	1980-11-06
1981	1981-04-25	1981-09-29
1982	1982-05-09	1982-09-10
1983	1983-05-24	1983-10-27
1984	1984-05-12	1984-09-23
1988	1988-03-28	1988-09-27
1989	1989-03-11	1989-10-14
1990	1990-04-23	1990-10-06
1991	1991-04-06	1991-10-18
1992	1992-04-15	1992-10-14
1993	1993-05-06	1993-10-06
1994	1994-04-18	1994-09-30
1995	1995-06-07	1995-10-17
1996	1996-04-03	1996-10-14
1997	1997-04-20	1997-10-11
1998	1998-03-27	1998-09-30
1999	1999-05-10	1999-10-07
2000	2000-04-14	2000-10-02
2001	2001-04-20	2001-10-29
2002	2002-04-15	2002-09-30
2003	2003-03-15	2003-10-30
2004	2004-03-20	2004-09-19
2005	2005-05-06	2005-10-18
2006	2006-04-06	2006-10-08
2007	2007-04-30	2007-10-07
2008	2008-04-16	2008-09-29
2009	2009-04-23	2009-10-01
2011	2011-04-03	2011-10-16
2012	2012-03-17	2012-10-21
2013	2013-04-29	2013-10-01
2014	2014-04-10	2014-10-27
2015	2015-03-16	2015-10-20
2016	2016-03-22	2016-11-01
2017	2017-03-17	2017-11-28
2018	2018-04-12	2018-10-04
2019	2019-04-21	2019-10-18
2020	2020-04-28	2020-11-07
2021	2021-03-30	2021-09-30
2022	2022-04-10	2022-10-24
2023	2023-04-12	2023-10-21
2024	2024-04-14	2024-10-30
2025	2025-03-28	2025-10-16
2026	2026-03-15	2026-10-13

Every Fixed Threshold

Fixed thresholds at Atwood
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	98	129	1934	122
35 C (95 F): Days	98	73	1934	40
40 C (104 F): Days	74	33	1936	7
45 C (113 F): Days	4	2	2012	2
90 F (32.2 C): Days	98	97	1934	92
100 F (37.8 C): Days	96	50	1936	15
110 F (43.3 C): Days	11	3	1934	2
0 C (32 F): Ice days (max	98	56	1978	6
0 C (32 F): Frost days (min	98	182	1995	86
-10 C (14 F): Days with min	98	67	1989	18
-20 C (-4 F): Days with min	92	18	1989	2
-30 C (-22 F): Days with min	10	2	1989	2
20 C (68 F): Tropical nights (min	94	32	1936	12
25 C (77 F): Days with min	2	2	1937	2
10 mm (0.39 in): Days with 10 mm or more rain	99	33	1982	15
25 mm (0.98 in): Days with 25 mm or more rain	97	10	1996	7
50 mm (1.97 in): Days with 50 mm or more rain	54	3	1944	2
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1977	1
10 cm (3.9 in): Days with 10 cm or more snowfall	76	8	1958	2
25 cm (9.8 in): Days with 25 cm or more snowfall	16	2	1949	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	2015	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1921.

Download the Data

Data for Atwood 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).

Atwood Threshold Days by Year (USC00140439)

Key Facts for Atwood Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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