Williston Sloulin Fld Threshold Days by Year (USW00094014)

20 fixed thresholds counted per year at Williston Sloulin Fld (USW00094014): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Williston Sloulin Fld Thresholds

Williston Sloulin Fld: days with a maximum temperature at or above 30 C (86 F) in 123 years, most in 1936 with 62.
Williston Sloulin Fld: days with a maximum temperature at or above 90 F (32.2 C) in 123 years, most in 1983 with 47.
Williston Sloulin Fld: days with a maximum temperature at or below 0 C (32 F) in 123 years, most in 1950 with 113.
Williston Sloulin Fld: nights with a minimum temperature at or below 0 C (32 F) in 123 years, most in 1907 with 223.
20 fixed thresholds have at least one qualifying day at Williston Sloulin Fld.

Days at or above 30 C (86 F)

123 years with a qualifying day

Days per year at Williston Sloulin Fld with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 62 in 1936.

Days at or above 30 C (86 F) per year at Williston Sloulin Fld
Year	Days	Decade average
1894	39	26.3
1895	21	26.3
1896	16	26.3
1897	43	26.3
1898	26	26.3
1899	13	26.3
1900	39	26.1
1901	38	26.1
1902	24	26.1
1903	10	26.1
1907	11	26.1
1908	30	26.1
1909	31	26.1
1910	42	27.2
1911	20	27.2
1912	12	27.2
1913	29	27.2
1914	32	27.2
1915	14	27.2
1916	22	27.2
1917	33	27.2
1918	23	27.2
1919	45	27.2
1920	40	25.5
1921	29	25.5
1922	27	25.5
1923	20	25.5
1924	12	25.5
1925	28	25.5
1926	27	25.5
1927	15	25.5
1928	18	25.5
1929	39	25.5
1930	38	41.9
1931	46	41.9
1932	34	41.9
1933	39	41.9
1934	44	41.9
1935	32	41.9
1936	62	41.9
1937	49	41.9
1938	31	41.9
1939	44	41.9
1940	37	29.3
1941	32	29.3
1942	24	29.3
1943	23	29.3
1944	19	29.3
1945	23	29.3
1946	27	29.3
1947	32	29.3
1948	33	29.3
1949	43	29.3
1950	22	29
1951	19	29
1952	27	29
1953	22	29
1954	27	29
1955	37	29
1956	27	29
1957	37	29
1958	34	29
1959	38	29
1960	41	37.6
1961	55	37.6
1962	23	37.6
1963	42	37.6
1964	36	37.6
1965	27	37.6
1966	40	37.6
1967	45	37.6
1968	29	37.6
1969	38	37.6
1970	51	33.9
1971	32	33.9
1972	27	33.9
1973	34	33.9
1974	38	33.9
1975	25	33.9
1976	36	33.9
1977	30	33.9
1978	36	33.9
1979	30	33.9
1980	53	46.8
1981	61	46.8
1982	44	46.8
1983	61	46.8
1984	49	46.8
1985	25	46.8
1986	26	46.8
1987	38	46.8
1988	62	46.8
1989	49	46.8
1990	51	35.4
1991	38	35.4
1992	27	35.4
1993	8	35.4
1994	29	35.4
1995	40	35.4
1996	38	35.4
1997	43	35.4
1998	48	35.4
1999	32	35.4
2000	39	40
2001	46	40
2002	38	40
2003	49	40
2004	26	40
2005	42	40
2006	53	40
2007	46	40
2008	35	40
2009	26	40
2010	28	39.7
2011	41	39.7
2012	45	39.7
2013	28	39.7
2014	32	39.7
2015	53	39.7
2016	41	39.7
2017	58	39.7
2018	38	39.7
2019	33	39.7

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

First to last qualifying date each year at Williston Sloulin Fld
Year	First date	Last date
1894	1894-06-07	1894-09-12
1895	1895-06-05	1895-09-02
1896	1896-06-15	1896-09-07
1897	1897-04-26	1897-10-01
1898	1898-06-16	1898-09-27
1899	1899-06-28	1899-09-26
1900	1900-05-09	1900-08-28
1901	1901-04-30	1901-09-03
1902	1902-05-28	1902-09-24
1903	1903-05-14	1903-08-21
1907	1907-07-03	1907-08-25
1908	1908-04-20	1908-09-16
1909	1909-05-04	1909-10-04
1910	1910-04-19	1910-10-10
1911	1911-04-27	1911-08-20
1912	1912-06-22	1912-08-23
1913	1913-04-14	1913-09-05
1914	1914-06-01	1914-09-18
1915	1915-07-09	1915-09-01
1916	1916-07-05	1916-09-03
1917	1917-05-15	1917-09-23
1918	1918-05-04	1918-08-26
1919	1919-05-23	1919-09-12
1920	1920-06-08	1920-10-05
1921	1921-06-08	1921-08-31
1922	1922-06-04	1922-09-27
1923	1923-05-26	1923-09-03
1924	1924-07-06	1924-09-23
1925	1925-05-19	1925-09-03
1926	1926-04-29	1926-08-30
1927	1927-06-26	1927-09-06
1928	1928-05-06	1928-09-18
1929	1929-05-24	1929-09-01
1930	1930-05-03	1930-09-10
1931	1931-05-14	1931-09-28
1932	1932-05-13	1932-09-08
1933	1933-05-31	1933-09-18
1934	1934-05-05	1934-09-12
1935	1935-06-29	1935-09-22
1936	1936-05-11	1936-09-22
1937	1937-05-28	1937-09-20
1938	1938-06-18	1938-10-03
1939	1939-04-30	1939-09-21
1940	1940-05-11	1940-09-16
1941	1941-05-17	1941-09-18
1942	1942-04-14	1942-10-10
1943	1943-06-22	1943-10-04
1944	1944-05-13	1944-08-28
1945	1945-06-21	1945-09-05
1946	1946-06-09	1946-10-01
1947	1947-07-02	1947-09-04
1948	1948-05-18	1948-09-15
1949	1949-04-28	1949-09-24
1950	1950-06-04	1950-09-05
1951	1951-05-23	1951-08-23
1952	1952-04-26	1952-09-26
1953	1953-06-11	1953-10-01
1954	1954-06-22	1954-08-31
1955	1955-06-15	1955-10-10
1956	1956-05-21	1956-09-26
1957	1957-05-30	1957-10-03
1958	1958-05-11	1958-09-12
1959	1959-06-03	1959-09-13
1960	1960-05-12	1960-09-19
1961	1961-05-28	1961-08-31
1962	1962-04-24	1962-09-06
1963	1963-05-06	1963-10-04
1964	1964-05-17	1964-09-17
1965	1965-07-03	1965-08-23
1966	1966-05-04	1966-09-20
1967	1967-05-23	1967-09-28
1968	1968-04-30	1968-09-14
1969	1969-05-26	1969-09-13
1970	1970-05-17	1970-09-05
1971	1971-06-21	1971-09-11
1972	1972-05-15	1972-09-19
1973	1973-05-31	1973-08-31
1974	1974-06-13	1974-08-24
1975	1975-06-24	1975-09-16
1976	1976-06-01	1976-09-17
1977	1977-04-26	1977-08-24
1978	1978-05-22	1978-09-10
1979	1979-05-16	1979-09-16
1980	1980-04-20	1980-10-08
1981	1981-04-24	1981-09-19
1982	1982-05-02	1982-09-10
1983	1983-05-26	1983-09-26
1984	1984-05-16	1984-09-18
1985	1985-05-03	1985-08-30
1986	1986-05-30	1986-08-30
1987	1987-04-28	1987-10-03
1988	1988-05-17	1988-09-16
1989	1989-04-22	1989-09-30
1990	1990-04-21	1990-09-25
1991	1991-05-21	1991-09-07
1992	1992-05-06	1992-10-01
1993	1993-05-12	1993-09-11
1994	1994-06-21	1994-09-18
1995	1995-05-31	1995-09-03
1996	1996-06-08	1996-08-31
1997	1997-05-31	1997-10-02
1998	1998-06-25	1998-09-17
1999	1999-05-28	1999-09-22
2000	2000-05-02	2000-09-17
2001	2001-04-28	2001-09-28
2002	2002-05-28	2002-09-16
2003	2003-05-26	2003-10-07
2004	2004-06-06	2004-09-18
2005	2005-04-08	2005-10-01
2006	2006-05-18	2006-09-13
2007	2007-05-09	2007-09-16
2008	2008-06-30	2008-09-18
2009	2009-06-17	2009-09-26
2010	2010-06-29	2010-09-28
2011	2011-06-29	2011-10-05
2012	2012-04-23	2012-09-10
2013	2013-05-13	2013-09-17
2014	2014-05-23	2014-09-26
2015	2015-06-01	2015-09-26
2016	2016-05-05	2016-09-02
2017	2017-05-05	2017-09-12
2018	2018-05-16	2018-09-08
2019	2019-05-29	2019-09-16

Every Fixed Threshold

Fixed thresholds at Williston Sloulin Fld
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	123	62	1936	33
35 C (95 F): Days	116	29	1983	2
40 C (104 F): Days	21	6	1988	2
90 F (32.2 C): Days	123	47	1983	12
100 F (37.8 C): Days	79	15	1988	3
110 F (43.3 C): Days	1	1	1936	1
0 C (32 F): Ice days (max	123	113	1950	89
0 C (32 F): Frost days (min	123	223	1907	169
-10 C (14 F): Days with min	123	123	1955	85
-20 C (-4 F): Days with min	123	71	1899	38
-30 C (-22 F): Days with min	117	25	1996	7
-40 C (-40 F): Days with min	15	4	1907	1
20 C (68 F): Tropical nights (min	93	19	1936	2
25 C (77 F): Days with min	5	2	1936	1
10 mm (0.39 in): Days with 10 mm or more rain	122	17	1953	9
25 mm (0.98 in): Days with 25 mm or more rain	109	6	1944	2
50 mm (1.97 in): Days with 50 mm or more rain	23	2	1914	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1963	1
10 cm (3.9 in): Days with 10 cm or more snowfall	81	10	1896	3
25 cm (9.8 in): Days with 25 cm or more snowfall	12	2	2010	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1894.

Download the Data

Data for Williston Sloulin Fld 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).

Williston Sloulin Fld Threshold Days by Year (USW00094014)

Key Facts for Williston Sloulin Fld Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related