Seymour 1 WSW Threshold Days by Year (USC00127935)

19 fixed thresholds counted per year at Seymour 1 WSW (USC00127935): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Seymour 1 WSW Thresholds

Seymour 1 WSW: nights with a minimum temperature at or below 0 C (32 F) in 113 years, most in 1964 with 148.
Seymour 1 WSW: nights with a minimum temperature at or below -10 C (14 F) in 113 years, most in 1968 with 50.
Seymour 1 WSW: nights with a minimum temperature at or above 20 C (68 F) in 113 years, most in 1900 with 69.
Seymour 1 WSW: days with a maximum temperature at or above 30 C (86 F) in 111 years, most in 1939 with 119.
19 fixed thresholds have at least one qualifying day at Seymour 1 WSW.

Days at or above 30 C (86 F)

111 years with a qualifying day

Days per year at Seymour 1 WSW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 119 in 1939.

Days at or above 30 C (86 F) per year at Seymour 1 WSW
Year	Days	Decade average
1894	74	72.7
1895	83	72.7
1896	61	72.7
1900	77	59.6
1901	57	59.6
1902	47	59.6
1903	53	59.6
1905	40	59.6
1906	74	59.6
1909	69	59.6
1910	76	87.2
1911	104	87.2
1912	83	87.2
1913	106	87.2
1914	104	87.2
1915	69	87.2
1916	90	87.2
1917	70	87.2
1918	83	87.2
1920	50	70.1
1921	94	70.1
1922	99	70.1
1923	71	70.1
1925	87	70.1
1926	73	70.1
1927	44	70.1
1928	60	70.1
1929	53	70.1
1930	67	86.3
1931	62	86.3
1932	58	86.3
1933	101	86.3
1934	88	86.3
1935	67	86.3
1936	107	86.3
1937	90	86.3
1938	104	86.3
1939	119	86.3
1940	81	86.7
1941	113	86.7
1942	101	86.7
1943	96	86.7
1944	99	86.7
1945	76	86.7
1946	62	86.7
1947	75	86.7
1948	80	86.7
1949	84	86.7
1950	39	70.8
1951	75	70.8
1952	90	70.8
1953	89	70.8
1954	98	70.8
1955	82	70.8
1956	59	70.8
1957	54	70.8
1958	40	70.8
1959	82	70.8
1960	65	62.3
1961	60	62.3
1962	75	62.3
1963	62	62.3
1964	70	62.3
1965	60	62.3
1966	67	62.3
1967	42	62.3
1968	59	62.3
1969	63	62.3
1970	68	56.3
1971	62	56.3
1972	56	56.3
1973	63	56.3
1974	45	56.3
1975	70	56.3
1976	42	56.3
1977	64	56.3
1978	55	56.3
1979	38	56.3
1980	63	50.7
1981	37	50.7
1982	39	50.7
1983	78	50.7
1984	52	50.7
1985	27	50.7
1986	44	50.7
1987	64	50.7
1988	69	50.7
1989	34	50.7
1990	40	46.7
1991	77	46.7
1992	8	46.7
1993	36	46.7
1994	50	46.7
1995	47	46.7
1996	43	46.7
1997	43	46.7
1998	52	46.7
1999	71	46.7
2000	31	48.1
2001	52	48.1
2002	73	48.1
2003	28	48.1
2004	40	48.1
2005	59	48.1
2006	46	48.1
2007	84	48.1
2008	43	48.1
2009	25	48.1
2010	79	68.3
2011	57	68.3
2012	69	68.3

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

First to last qualifying date each year at Seymour 1 WSW
Year	First date	Last date
1894	1894-04-28	1894-09-09
1895	1895-05-03	1895-09-23
1896	1896-04-15	1896-09-14
1900	1900-05-14	1900-10-05
1901	1901-05-02	1901-09-07
1902	1902-04-21	1902-09-08
1903	1903-05-17	1903-10-03
1905	1905-03-31	1905-09-29
1906	1906-05-15	1906-09-16
1909	1909-06-06	1909-09-22
1910	1910-03-23	1910-10-19
1911	1911-05-09	1911-10-06
1912	1912-04-11	1912-10-10
1913	1913-05-02	1913-10-10
1914	1914-04-22	1914-10-07
1915	1915-04-19	1915-09-26
1916	1916-05-06	1916-10-08
1917	1917-04-18	1917-09-19
1918	1918-05-05	1918-10-06
1920	1920-05-23	1920-10-23
1921	1921-05-19	1921-09-29
1922	1922-05-09	1922-10-30
1923	1923-06-02	1923-09-29
1925	1925-04-23	1925-09-26
1926	1926-05-01	1926-10-04
1927	1927-05-21	1927-09-18
1928	1928-05-03	1928-10-13
1929	1929-03-24	1929-09-28
1930	1930-04-11	1930-09-23
1931	1931-05-16	1931-09-25
1932	1932-05-15	1932-09-19
1933	1933-05-19	1933-09-30
1934	1934-04-04	1934-09-25
1935	1935-04-26	1935-10-13
1936	1936-05-01	1936-09-27
1937	1937-05-21	1937-10-01
1938	1938-04-26	1938-10-18
1939	1939-05-06	1939-10-10
1940	1940-05-06	1940-10-27
1941	1941-04-13	1941-10-07
1942	1942-04-16	1942-10-09
1943	1943-05-05	1943-10-11
1944	1944-05-11	1944-09-20
1945	1945-05-21	1945-09-28
1946	1946-04-03	1946-10-07
1947	1947-05-15	1947-10-23
1948	1948-04-25	1948-09-21
1949	1949-05-04	1949-10-11
1950	1950-05-25	1950-11-01
1951	1951-04-29	1951-10-06
1952	1952-05-02	1952-10-02
1953	1953-05-22	1953-10-22
1954	1954-04-26	1954-10-11
1955	1955-05-04	1955-09-30
1956	1956-05-12	1956-09-23
1957	1957-04-21	1957-09-12
1958	1958-04-19	1958-09-07
1959	1959-05-03	1959-10-06
1960	1960-04-23	1960-09-27
1961	1961-06-02	1961-10-13
1962	1962-04-27	1962-10-17
1963	1963-04-19	1963-10-23
1964	1964-05-06	1964-09-22
1965	1965-04-24	1965-09-22
1966	1966-05-24	1966-09-05
1967	1967-04-09	1967-10-05
1968	1968-06-03	1968-10-16
1969	1969-05-05	1969-10-13
1970	1970-05-01	1970-09-24
1971	1971-05-18	1971-10-04
1972	1972-05-24	1972-09-22
1973	1973-06-04	1973-09-29
1974	1974-05-18	1974-09-12
1975	1975-05-20	1975-10-14
1976	1976-04-19	1976-09-14
1977	1977-04-18	1977-09-19
1978	1978-05-28	1978-09-22
1979	1979-05-09	1979-10-22
1980	1980-04-23	1980-09-23
1981	1981-04-28	1981-09-27
1982	1982-05-06	1982-10-07
1983	1983-06-10	1983-10-04
1984	1984-06-05	1984-09-23
1985	1985-04-22	1985-09-23
1986	1986-04-27	1986-10-01
1987	1987-05-11	1987-09-29
1988	1988-04-06	1988-09-23
1989	1989-05-31	1989-10-14
1990	1990-04-25	1990-09-29
1991	1991-05-15	1991-10-01
1992	1992-06-18	1992-08-11
1993	1993-06-09	1993-09-15
1994	1994-05-24	1994-09-17
1995	1995-06-07	1995-09-07
1996	1996-05-19	1996-09-08
1997	1997-05-25	1997-10-13
1998	1998-05-14	1998-10-07
1999	1999-05-12	1999-09-29
2000	2000-05-25	2000-09-20
2001	2001-04-08	2001-09-09
2002	2002-04-19	2002-10-03
2003	2003-06-24	2003-08-29
2004	2004-04-19	2004-09-24
2005	2005-05-12	2005-10-05
2006	2006-04-16	2006-10-05
2007	2007-05-01	2007-10-09
2008	2008-06-01	2008-10-13
2009	2009-04-26	2009-08-28
2010	2010-05-24	2010-10-11
2011	2011-05-26	2011-09-14
2012	2012-05-03	2012-09-08

Every Fixed Threshold

Fixed thresholds at Seymour 1 WSW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	111	119	1939	69
35 C (95 F): Days	86	68	1936	17
40 C (104 F): Days	14	30	1936	1
45 C (113 F): Days	1	1	1936	1
90 F (32.2 C): Days	110	90	1913	38
100 F (37.8 C): Days	36	49	1936	6
110 F (43.3 C): Days	1	10	1936	10
0 C (32 F): Ice days (max	111	47	2010	9
0 C (32 F): Frost days (min	113	148	1964	99
-10 C (14 F): Days with min	113	50	1968	4
-20 C (-4 F): Days with min	67	19	1977	1
-30 C (-22 F): Days with min	5	2	1977	2
20 C (68 F): Tropical nights (min	113	69	1900	26
25 C (77 F): Days with min	21	7	1901	1
10 mm (0.39 in): Days with 10 mm or more rain	97	54	1950	29
25 mm (0.98 in): Days with 25 mm or more rain	97	20	1996	16
50 mm (1.97 in): Days with 50 mm or more rain	78	6	2006	4
100 mm (3.94 in): Days with 100 mm or more rain	11	1	1902	1
10 cm (3.9 in): Days with 10 cm or more snowfall	31	5	1917	1

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

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Data for Seymour 1 WSW 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Seymour 1 WSW Threshold Days by Year (USC00127935)

Key Facts for Seymour 1 WSW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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