Alliance 1WNW Threshold Days by Year (USC00250130)

19 fixed thresholds counted per year at Alliance 1WNW (USC00250130): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Alliance 1WNW Thresholds

Alliance 1WNW: days with 10 mm (0.39 in) or more of precipitation in 96 years, most in 1978 with 21.
Alliance 1WNW: days with 25 mm (0.98 in) or more of precipitation in 87 years, most in 1935 with 7.
Alliance 1WNW: days with a maximum temperature at or above 30 C (86 F) in 81 years, most in 1939 with 91.
Alliance 1WNW: days with a maximum temperature at or above 35 C (95 F) in 81 years, most in 1936 with 41.
19 fixed thresholds have at least one qualifying day at Alliance 1WNW.

Days at or above 30 C (86 F)

81 years with a qualifying day

Days per year at Alliance 1WNW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 91 in 1939.

Days at or above 30 C (86 F) per year at Alliance 1WNW
Year	Days	Decade average
1897	41	41
1900	60	59
1901	72	59
1903	47	59
1908	57	59
1910	65	53
1911	58	53
1912	25	53
1913	46	53
1914	53	53
1916	72	53
1917	52	53
1926	45	45.5
1927	43	45.5
1928	33	45.5
1929	61	45.5
1931	73	74.8
1932	64	74.8
1933	75	74.8
1934	76	74.8
1935	56	74.8
1936	85	74.8
1937	80	74.8
1938	73	74.8
1939	91	74.8
1940	76	52.5
1941	52	52.5
1942	46	52.5
1943	60	52.5
1944	42	52.5
1945	39	52.5
1946	53	52.5
1947	52	52.5
1948	52	52.5
1949	53	52.5
1950	38	52.2
1951	29	52.2
1952	67	52.2
1953	60	52.2
1954	61	52.2
1955	64	52.2
1956	59	52.2
1957	42	52.2
1958	41	52.2
1959	61	52.2
1960	56	50.3
1961	53	50.3
1962	37	50.3
1963	68	50.3
1964	61	50.3
1965	28	50.3
1966	62	50.3
1967	42	50.3
1968	39	50.3
1969	57	50.3
1970	65	52.6
1971	46	52.6
1972	42	52.6
1973	53	52.6
1974	52	52.6
1975	52	52.6
1977	47	52.6
1978	64	52.6
1981	51	55.9
1982	40	55.9
1983	63	55.9
1984	63	55.9
1985	52	55.9
1987	54	55.9
1989	68	55.9
1990	56	59.3
1991	56	59.3
1994	75	59.3
1996	50	59.3
2010	52	58.7
2011	66	58.7
2012	82	58.7
2013	60	58.7
2014	50	58.7
2015	52	58.7
2016	49	58.7

For each year, a bar from the first to the last day at Alliance 1WNW meeting 30 C (86 F).

First to last qualifying date each year at Alliance 1WNW
Year	First date	Last date
1897	1897-06-12	1897-09-07
1900	1900-05-09	1900-10-05
1901	1901-04-25	1901-09-24
1903	1903-05-16	1903-09-21
1908	1908-04-13	1908-09-24
1910	1910-04-20	1910-10-10
1911	1911-05-09	1911-09-22
1912	1912-06-24	1912-09-07
1913	1913-05-27	1913-09-07
1914	1914-05-30	1914-09-27
1916	1916-05-05	1916-09-30
1917	1917-06-09	1917-09-22
1926	1926-05-04	1926-09-16
1927	1927-04-27	1927-09-16
1928	1928-05-01	1928-09-15
1929	1929-05-14	1929-09-22
1931	1931-05-14	1931-09-13
1932	1932-05-13	1932-09-18
1933	1933-05-18	1933-10-04
1934	1934-04-30	1934-10-07
1935	1935-06-08	1935-09-23
1936	1936-05-04	1936-09-22
1937	1937-05-14	1937-09-21
1938	1938-05-28	1938-10-04
1939	1939-04-22	1939-09-27
1940	1940-05-03	1940-09-18
1941	1941-05-12	1941-09-20
1942	1942-05-26	1942-10-10
1943	1943-05-28	1943-10-18
1944	1944-05-14	1944-09-17
1945	1945-06-21	1945-09-06
1946	1946-06-04	1946-09-26
1947	1947-06-26	1947-10-05
1948	1948-05-17	1948-09-18
1949	1949-06-16	1949-09-25
1950	1950-05-23	1950-09-03
1951	1951-06-13	1951-09-25
1952	1952-04-27	1952-09-27
1953	1953-06-10	1953-10-09
1954	1954-05-21	1954-10-08
1955	1955-05-13	1955-09-17
1956	1956-05-08	1956-10-12
1957	1957-06-05	1957-09-29
1958	1958-05-21	1958-10-15
1959	1959-05-01	1959-09-11
1960	1960-05-31	1960-09-06
1961	1961-05-10	1961-09-18
1962	1962-04-25	1962-09-11
1963	1963-05-07	1963-10-05
1964	1964-05-16	1964-09-25
1965	1965-05-30	1965-08-25
1966	1966-05-04	1966-09-24
1967	1967-05-23	1967-10-03
1968	1968-06-02	1968-09-14
1969	1969-05-25	1969-09-28
1970	1970-05-17	1970-09-20
1971	1971-06-16	1971-09-13
1972	1972-05-16	1972-09-19
1973	1973-06-07	1973-08-31
1974	1974-05-19	1974-09-26
1975	1975-06-20	1975-10-07
1977	1977-06-01	1977-09-28
1978	1978-05-14	1978-09-26
1981	1981-04-26	1981-09-28
1982	1982-06-23	1982-09-10
1983	1983-05-26	1983-09-26
1984	1984-05-15	1984-09-19
1985	1985-05-08	1985-09-07
1987	1987-04-27	1987-09-27
1989	1989-04-22	1989-10-01
1990	1990-06-05	1990-09-26
1991	1991-05-15	1991-10-17
1994	1994-05-17	1994-09-30
1996	1996-04-11	1996-10-12
2010	2010-05-23	2010-09-29
2011	2011-05-09	2011-10-05
2012	2012-04-02	2012-10-03
2013	2013-05-14	2013-09-23
2014	2014-05-29	2014-09-27
2015	2015-06-10	2015-10-12
2016	2016-06-09	2016-09-24

Every Fixed Threshold

Fixed thresholds at Alliance 1WNW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	81	91	1939	49
35 C (95 F): Days	81	41	1936	14
40 C (104 F): Days	18	5	1936	1
90 F (32.2 C): Days	81	66	1939	34
100 F (37.8 C): Days	57	21	1936	3
110 F (43.3 C): Days	1	1	1983	1
0 C (32 F): Ice days (max	81	71	1978	31
0 C (32 F): Frost days (min	78	211	1912	167
-10 C (14 F): Days with min	78	90	1978	57
-20 C (-4 F): Days with min	78	26	1916	11
-30 C (-22 F): Days with min	30	6	2011	2
-40 C (-40 F): Days with min	2	2	2011	2
20 C (68 F): Tropical nights (min	44	42	1897	1
25 C (77 F): Days with min	3	5	1897	1
10 mm (0.39 in): Days with 10 mm or more rain	96	21	1978	10
25 mm (0.98 in): Days with 25 mm or more rain	87	7	1935	3
50 mm (1.97 in): Days with 50 mm or more rain	22	3	1942	1
10 cm (3.9 in): Days with 10 cm or more snowfall	76	9	1959	3
25 cm (9.8 in): Days with 25 cm or more snowfall	20	2	1942	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1897.

Download the Data

Data for Alliance 1WNW 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Alliance 1WNW Threshold Days by Year (USC00250130)

Key Facts for Alliance 1WNW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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