Seward Threshold Days by Year (USC00257715)

20 fixed thresholds counted per year at Seward (USC00257715): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Seward Thresholds

Seward: days with 10 mm (0.39 in) or more of precipitation in 124 years, most in 1908 with 42.
Seward: days with 25 mm (0.98 in) or more of precipitation in 124 years, most in 1919 with 13.
Seward: nights with a minimum temperature at or below 0 C (32 F) in 107 years, most in 1907 with 176.
Seward: nights with a minimum temperature at or below -10 C (14 F) in 107 years, most in 1978 with 72.
20 fixed thresholds have at least one qualifying day at Seward.

Days at or above 30 C (86 F)

106 years with a qualifying day

Days per year at Seward with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 100 in 1936.

Days at or above 30 C (86 F) per year at Seward
Year	Days	Decade average
1902	39	54.7
1904	32	54.7
1905	61	54.7
1906	60	54.7
1907	83	54.7
1908	53	54.7
1910	78	70.2
1911	74	70.2
1912	64	70.2
1913	86	70.2
1914	72	70.2
1915	36	70.2
1916	72	70.2
1918	78	70.2
1919	72	70.2
1920	44	51.8
1922	65	51.8
1923	25	51.8
1929	73	51.8
1930	51	77.8
1931	82	77.8
1932	56	77.8
1933	78	77.8
1934	97	77.8
1935	66	77.8
1936	100	77.8
1937	82	77.8
1938	88	77.8
1941	70	71
1942	74	71
1943	84	71
1944	76	71
1945	56	71
1947	80	71
1949	57	71
1950	31	58.5
1951	31	58.5
1952	65	58.5
1953	74	58.5
1954	71	58.5
1955	83	58.5
1956	82	58.5
1957	49	58.5
1958	39	58.5
1959	60	58.5
1960	50	58.2
1961	52	58.2
1962	51	58.2
1963	72	58.2
1964	75	58.2
1965	50	58.2
1966	60	58.2
1967	43	58.2
1968	63	58.2
1969	66	58.2
1970	95	73.2
1971	89	73.2
1972	75	73.2
1973	72	73.2
1974	61	73.2
1975	73	73.2
1976	80	73.2
1977	63	73.2
1978	68	73.2
1979	56	73.2
1980	83	62
1981	57	62
1982	35	62
1983	81	62
1984	64	62
1985	48	62
1986	46	62
1987	64	62
1988	85	62
1989	57	62
1990	69	65.7
1991	80	65.7
1992	28	65.7
1993	67	65.7
1994	72	65.7
1996	57	65.7
1997	73	65.7
1998	82	65.7
1999	63	65.7
2000	91	65.2
2001	67	65.2
2002	82	65.2
2003	71	65.2
2004	46	65.2
2005	83	65.2
2006	71	65.2
2007	70	65.2
2008	37	65.2
2009	34	65.2
2010	65	48.5
2011	55	48.5
2012	78	48.5
2013	47	48.5
2014	22	48.5
2015	35	48.5
2016	44	48.5
2017	42	48.5
2023	85	84.8
2024	75	84.8
2025	77	84.8
2026	102	84.8

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

First to last qualifying date each year at Seward
Year	First date	Last date
1902	1902-04-20	1902-10-21
1904	1904-05-24	1904-10-04
1905	1905-06-03	1905-10-05
1906	1906-04-24	1906-09-11
1907	1907-03-21	1907-09-24
1908	1908-04-20	1908-09-22
1910	1910-03-21	1910-10-11
1911	1911-04-27	1911-09-16
1912	1912-05-22	1912-09-10
1913	1913-05-28	1913-09-09
1914	1914-05-24	1914-11-01
1915	1915-04-28	1915-10-29
1916	1916-04-11	1916-10-07
1918	1918-05-03	1918-10-12
1919	1919-06-17	1919-10-02
1920	1920-06-07	1920-09-24
1922	1922-05-05	1922-10-04
1923	1923-06-21	1923-09-10
1929	1929-04-04	1929-09-25
1930	1930-04-10	1930-09-12
1931	1931-05-17	1931-10-26
1932	1932-05-13	1932-10-14
1933	1933-05-18	1933-10-29
1934	1934-04-09	1934-10-08
1935	1935-06-14	1935-09-24
1936	1936-04-13	1936-09-22
1937	1937-05-20	1937-10-29
1938	1938-06-05	1938-10-17
1941	1941-05-14	1941-09-15
1942	1942-04-04	1942-10-08
1943	1943-03-30	1943-10-10
1944	1944-05-12	1944-09-20
1945	1945-06-27	1945-11-05
1947	1947-05-03	1947-10-21
1949	1949-04-25	1949-10-07
1950	1950-04-22	1950-09-03
1951	1951-05-31	1951-09-11
1952	1952-05-04	1952-09-30
1953	1953-04-28	1953-10-02
1954	1954-04-06	1954-09-27
1955	1955-04-19	1955-09-18
1956	1956-04-01	1956-10-11
1957	1957-06-04	1957-09-01
1958	1958-05-11	1958-09-09
1959	1959-05-01	1959-09-09
1960	1960-04-22	1960-09-20
1961	1961-05-28	1961-09-10
1962	1962-04-21	1962-09-12
1963	1963-05-08	1963-10-10
1964	1964-04-16	1964-09-10
1965	1965-04-22	1965-09-03
1966	1966-05-04	1966-10-07
1967	1967-03-29	1967-08-29
1968	1968-05-01	1968-09-03
1969	1969-05-27	1969-10-03
1970	1970-04-27	1970-09-21
1971	1971-05-15	1971-10-01
1972	1972-04-06	1972-09-20
1973	1973-05-18	1973-09-02
1974	1974-04-27	1974-09-26
1975	1975-05-18	1975-10-13
1976	1976-05-19	1976-10-11
1977	1977-05-16	1977-09-07
1978	1978-05-24	1978-09-18
1979	1979-05-28	1979-09-11
1980	1980-04-20	1980-10-07
1981	1981-04-25	1981-09-29
1982	1982-06-06	1982-08-22
1983	1983-05-24	1983-09-27
1984	1984-06-05	1984-09-24
1985	1985-04-18	1985-09-18
1986	1986-03-28	1986-09-21
1987	1987-04-19	1987-09-26
1988	1988-05-12	1988-09-26
1989	1989-04-21	1989-10-13
1990	1990-04-22	1990-10-05
1991	1991-04-05	1991-09-29
1992	1992-04-14	1992-09-16
1993	1993-05-14	1993-10-07
1994	1994-04-17	1994-10-01
1996	1996-04-11	1996-09-11
1997	1997-05-16	1997-10-07
1998	1998-05-14	1998-09-29
1999	1999-06-04	1999-09-25
2000	2000-04-05	2000-10-02
2001	2001-04-27	2001-10-03
2002	2002-04-15	2002-10-02
2003	2003-04-02	2003-10-23
2004	2004-04-17	2004-09-21
2005	2005-05-11	2005-10-19
2006	2006-04-14	2006-10-04
2007	2007-04-30	2007-10-06
2008	2008-05-26	2008-09-29
2009	2009-04-24	2009-08-25
2010	2010-05-23	2010-10-09
2011	2011-04-10	2011-09-14
2012	2012-04-01	2012-09-20
2013	2013-05-15	2013-09-29
2014	2014-05-08	2014-09-05
2015	2015-03-17	2015-10-12
2016	2016-06-09	2016-09-24
2017	2017-05-09	2017-09-25
2023	2023-04-12	2023-10-21
2024	2024-04-14	2024-10-11
2025	2025-04-18	2025-10-05
2026	2026-03-20	2026-10-13

Every Fixed Threshold

Fixed thresholds at Seward
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	106	100	1936	102
35 C (95 F): Days	103	58	1934	25
40 C (104 F): Days	31	22	1936	3
45 C (113 F): Days	1	2	1936	2
90 F (32.2 C): Days	106	82	1936	60
100 F (37.8 C): Days	70	37	1936	7
110 F (43.3 C): Days	3	6	1936	2
0 C (32 F): Ice days (max	106	71	1978	17
0 C (32 F): Frost days (min	107	176	1907	82
-10 C (14 F): Days with min	107	72	1978	25
-20 C (-4 F): Days with min	103	29	1936	7
-30 C (-22 F): Days with min	15	3	1905	1
20 C (68 F): Tropical nights (min	107	58	1993	30
25 C (77 F): Days with min	51	12	1934	2
10 mm (0.39 in): Days with 10 mm or more rain	124	42	1908	21
25 mm (0.98 in): Days with 25 mm or more rain	124	13	1919	8
50 mm (1.97 in): Days with 50 mm or more rain	99	5	1945	1
100 mm (3.94 in): Days with 100 mm or more rain	15	1	1902	1
10 cm (3.9 in): Days with 10 cm or more snowfall	75	5	1957	1
25 cm (9.8 in): Days with 25 cm or more snowfall	3	1	1950	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1902.

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Data for Seward 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).

Seward Threshold Days by Year (USC00257715)

Key Facts for Seward Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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