Wooster Exp STN Threshold Days by Year (USC00339312)

19 fixed thresholds counted per year at Wooster Exp STN (USC00339312): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Wooster Exp STN Thresholds

Wooster Exp STN: days with 10 mm (0.39 in) or more of precipitation in 118 years, most in 2011 with 52.
Wooster Exp STN: days with 25 mm (0.98 in) or more of precipitation in 118 years, most in 2018 with 14.
Wooster Exp STN: days with a maximum temperature at or above 30 C (86 F) in 117 years, most in 1930 with 66.
Wooster Exp STN: days with a maximum temperature at or below 0 C (32 F) in 117 years, most in 1960 with 68.
19 fixed thresholds have at least one qualifying day at Wooster Exp STN.

Days at or above 30 C (86 F)

117 years with a qualifying day

Days per year at Wooster Exp STN with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 66 in 1930.

Days at or above 30 C (86 F) per year at Wooster Exp STN
Year	Days	Decade average
1900	48	33
1901	41	33
1902	27	33
1903	34	33
1904	18	33
1905	18	33
1906	36	33
1907	28	33
1908	53	33
1909	27	33
1910	43	38.7
1911	46	38.7
1912	26	38.7
1913	46	38.7
1914	43	38.7
1915	16	38.7
1916	46	38.7
1917	29	38.7
1918	41	38.7
1919	51	38.7
1920	22	38.4
1921	51	38.4
1922	40	38.4
1923	51	38.4
1924	29	38.4
1925	53	38.4
1926	33	38.4
1927	28	38.4
1928	42	38.4
1929	35	38.4
1930	66	49.7
1931	56	49.7
1932	45	49.7
1933	50	49.7
1934	64	49.7
1935	39	49.7
1936	61	49.7
1937	36	49.7
1938	30	49.7
1939	50	49.7
1942	20	39.6
1943	32	39.6
1944	46	39.6
1945	49	39.6
1946	35	39.6
1947	40	39.6
1948	36	39.6
1949	59	39.6
1950	20	31.6
1951	34	31.6
1952	52	31.6
1953	46	31.6
1954	35	31.6
1955	44	31.6
1956	10	31.6
1957	22	31.6
1958	14	31.6
1959	39	31.6
1960	12	21.5
1961	22	21.5
1962	27	21.5
1963	20	21.5
1964	29	21.5
1965	22	21.5
1966	37	21.5
1967	17	21.5
1968	19	21.5
1969	10	21.5
1970	23	16.7
1971	22	16.7
1972	8	16.7
1973	20	16.7
1974	14	16.7
1975	21	16.7
1976	10	16.7
1977	19	16.7
1978	20	16.7
1979	10	16.7
1980	18	19.1
1981	9	19.1
1982	3	19.1
1983	36	19.1
1984	11	19.1
1985	3	19.1
1986	13	19.1
1987	31	19.1
1988	50	19.1
1989	17	19.1
1990	13	22.6
1991	51	22.6
1992	2	22.6
1993	36	22.6
1994	19	22.6
1995	27	22.6
1996	16	22.6
1997	16	22.6
1998	16	22.6
1999	30	22.6
2000	2	21.6
2001	15	21.6
2002	48	21.6
2003	13	21.6
2004	5	21.6
2005	36	21.6
2006	22	21.6
2007	36	21.6
2008	25	21.6
2009	14	21.6
2010	46	40
2011	44	40
2012	59	40
2013	22	40
2014	21	40
2015	32	40
2016	63	40
2017	29	40
2018	44	40

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

First to last qualifying date each year at Wooster Exp STN
Year	First date	Last date
1900	1900-05-14	1900-10-06
1901	1901-06-12	1901-09-07
1902	1902-05-04	1902-08-31
1903	1903-05-17	1903-09-16
1904	1904-05-25	1904-09-29
1905	1905-06-15	1905-09-29
1906	1906-05-17	1906-09-19
1907	1907-06-18	1907-09-20
1908	1908-05-25	1908-09-27
1909	1909-06-21	1909-09-14
1910	1910-06-17	1910-09-12
1911	1911-05-10	1911-09-02
1912	1912-05-23	1912-09-10
1913	1913-05-05	1913-09-07
1914	1914-04-28	1914-09-22
1915	1915-04-25	1915-09-16
1916	1916-05-26	1916-10-09
1917	1917-05-18	1917-08-21
1918	1918-05-22	1918-08-26
1919	1919-05-30	1919-10-03
1920	1920-06-10	1920-09-27
1921	1921-05-22	1921-09-10
1922	1922-06-07	1922-10-06
1923	1923-06-01	1923-09-27
1924	1924-06-19	1924-09-01
1925	1925-04-23	1925-09-20
1926	1926-06-13	1926-09-22
1927	1927-05-21	1927-10-01
1928	1928-05-04	1928-10-12
1929	1929-05-27	1929-09-28
1930	1930-04-11	1930-09-15
1931	1931-06-13	1931-09-22
1932	1932-06-03	1932-09-20
1933	1933-05-24	1933-09-10
1934	1934-05-19	1934-09-25
1935	1935-06-13	1935-09-19
1936	1936-05-07	1936-09-24
1937	1937-05-31	1937-09-23
1938	1938-06-21	1938-09-04
1939	1939-05-26	1939-10-09
1942	1942-04-30	1942-09-15
1943	1943-06-03	1943-09-03
1944	1944-05-26	1944-08-22
1945	1945-06-14	1945-09-24
1946	1946-06-11	1946-10-06
1947	1947-06-10	1947-09-20
1948	1948-04-26	1948-09-19
1949	1949-05-04	1949-10-10
1950	1950-05-05	1950-09-01
1951	1951-05-01	1951-10-05
1952	1952-05-05	1952-10-01
1953	1953-05-30	1953-10-03
1954	1954-06-10	1954-09-29
1955	1955-06-05	1955-09-19
1956	1956-06-13	1956-08-31
1957	1957-06-15	1957-09-02
1958	1958-06-05	1958-09-04
1959	1959-05-06	1959-09-29
1960	1960-07-23	1960-09-08
1961	1961-06-11	1961-09-24
1962	1962-05-14	1962-09-13
1963	1963-05-09	1963-07-28
1964	1964-05-19	1964-09-10
1965	1965-06-22	1965-09-19
1966	1966-06-09	1966-09-03
1967	1967-05-27	1967-08-08
1968	1968-06-07	1968-08-24
1969	1969-06-12	1969-08-24
1970	1970-06-11	1970-09-24
1971	1971-06-04	1971-09-29
1972	1972-07-11	1972-07-23
1973	1973-06-10	1973-09-05
1974	1974-06-20	1974-08-13
1975	1975-05-21	1975-08-24
1976	1976-06-09	1976-07-28
1977	1977-05-20	1977-09-01
1978	1978-05-27	1978-09-21
1979	1979-05-08	1979-08-08
1980	1980-06-26	1980-09-21
1981	1981-06-14	1981-07-18
1982	1982-05-18	1982-07-17
1983	1983-06-13	1983-09-19
1984	1984-06-08	1984-09-02
1985	1985-08-13	1985-09-08
1986	1986-04-28	1986-08-15
1987	1987-05-28	1987-08-16
1988	1988-05-15	1988-08-17
1989	1989-06-24	1989-09-09
1990	1990-04-27	1990-09-06
1991	1991-05-13	1991-09-16
1992	1992-07-02	1992-08-10
1993	1993-05-10	1993-09-02
1994	1994-06-06	1994-07-21
1995	1995-06-19	1995-09-01
1996	1996-05-20	1996-08-23
1997	1997-06-21	1997-08-17
1998	1998-05-16	1998-09-27
1999	1999-06-07	1999-09-04
2000	2000-09-02	2000-09-03
2001	2001-06-14	2001-08-10
2002	2002-06-05	2002-09-11
2003	2003-06-24	2003-08-22
2004	2004-06-09	2004-08-04
2005	2005-06-06	2005-08-21
2006	2006-05-29	2006-08-27
2007	2007-05-24	2007-10-09
2008	2008-06-06	2008-09-15
2009	2009-04-26	2009-08-20
2010	2010-05-28	2010-09-25
2011	2011-05-30	2011-09-04
2012	2012-05-04	2012-09-14
2013	2013-05-30	2013-09-12
2014	2014-05-14	2014-09-06
2015	2015-05-08	2015-09-09
2016	2016-05-28	2016-09-24
2017	2017-05-18	2017-09-28
2018	2018-05-28	2018-10-10

Every Fixed Threshold

Fixed thresholds at Wooster Exp STN
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	117	66	1930	44
35 C (95 F): Days	47	16	1933	1
40 C (104 F): Days	2	1	1918	1
90 F (32.2 C): Days	104	35	1930	21
100 F (37.8 C): Days	6	6	1930	3
0 C (32 F): Ice days (max	117	68	1960	32
0 C (32 F): Frost days (min	112	167	1917	150
-10 C (14 F): Days with min	112	59	1978	28
-20 C (-4 F): Days with min	81	16	1963	3
-30 C (-22 F): Days with min	2	1	1912	1
20 C (68 F): Tropical nights (min	112	23	1949	18
25 C (77 F): Days with min	3	1	1902	1
10 mm (0.39 in): Days with 10 mm or more rain	118	52	2011	45
25 mm (0.98 in): Days with 25 mm or more rain	118	14	2018	14
50 mm (1.97 in): Days with 50 mm or more rain	67	3	1912	1
100 mm (3.94 in): Days with 100 mm or more rain	6	1	1911	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1969	1
10 cm (3.9 in): Days with 10 cm or more snowfall	60	6	1910	3
25 cm (9.8 in): Days with 25 cm or more snowfall	6	1	1910	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1900.

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Data for Wooster Exp STN 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).

Wooster Exp STN Threshold Days by Year (USC00339312)

Key Facts for Wooster Exp STN Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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