Seymour (Mag) Threshold Days by Year

4 fixed thresholds counted per year at Seymour (Mag) (SF000784530): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Seymour (Mag) Thresholds

Seymour (Mag): days with 10 mm (0.39 in) or more of precipitation in 98 years, most in 1891 with 35.
Seymour (Mag): days with 25 mm (0.98 in) or more of precipitation in 96 years, most in 1886 with 11.
Seymour (Mag): days with 50 mm (1.97 in) or more of precipitation in 52 years, most in 1953 with 5.
Seymour (Mag): days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1881 with 1.
4 fixed thresholds have at least one qualifying day at Seymour (Mag).

Days with 10 mm (0.39 in) or more of precipitation

98 years with a qualifying day

Days per year at Seymour (Mag) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 1891.

Days with 10 mm (0.39 in) or more of precipitation per year at Seymour (Mag)
Year	Days	Decade average
1878	19	19
1880	18	21
1881	24	21
1884	18	21
1885	16	21
1886	23	21
1887	26	21
1888	23	21
1889	20	21
1890	20	21.2
1891	35	21.2
1892	23	21.2
1893	22	21.2
1894	17	21.2
1895	24	21.2
1896	20	21.2
1897	18	21.2
1898	24	21.2
1899	9	21.2
1900	12	17.3
1901	17	17.3
1902	18	17.3
1903	18	17.3
1904	11	17.3
1907	19	17.3
1908	18	17.3
1909	25	17.3
1910	15	18.6
1911	29	18.6
1912	21	18.6
1913	21	18.6
1914	19	18.6
1915	18	18.6
1916	15	18.6
1918	18	18.6
1919	11	18.6
1920	19	18.6
1921	20	18.6
1922	25	18.6
1923	22	18.6
1924	17	18.6
1926	19	18.6
1927	7	18.6
1929	20	18.6
1930	22	19.4
1931	21	19.4
1932	19	19.4
1933	17	19.4
1934	21	19.4
1935	21	19.4
1936	15	19.4
1937	16	19.4
1938	21	19.4
1939	21	19.4
1940	21	15.9
1941	14	15.9
1942	19	15.9
1943	27	15.9
1944	13	15.9
1945	8	15.9
1946	13	15.9
1947	17	15.9
1948	17	15.9
1949	10	15.9
1950	33	18
1951	12	18
1952	16	18
1953	21	18
1954	16	18
1955	16	18
1956	19	18
1957	12	18
1958	14	18
1959	21	18
1960	13	16.3
1961	17	16.3
1962	13	16.3
1963	27	16.3
1964	17	16.3
1965	14	16.3
1966	12	16.3
1967	17	16.3
1968	18	16.3
1969	15	16.3
1970	15	21.3
1971	24	21.3
1972	17	21.3
1973	16	21.3
1974	31	21.3
1975	17	21.3
1976	31	21.3
1977	19	21.3
1978	19	21.3
1979	24	21.3
1980	16	18.8
1981	27	18.8
1982	16	18.8
1983	16	18.8

For each year, a bar from the first to the last day at Seymour (Mag) meeting 10 mm (0.39 in).

First to last qualifying date each year at Seymour (Mag)
Year	First date	Last date
1878	1878-01-31	1878-12-26
1880	1880-01-14	1880-12-25
1881	1881-01-14	1881-11-22
1884	1884-01-06	1884-11-09
1885	1885-03-02	1885-12-16
1886	1886-01-15	1886-12-25
1887	1887-01-17	1887-11-28
1888	1888-01-03	1888-12-27
1889	1889-01-05	1889-12-29
1890	1890-01-02	1890-12-02
1891	1891-01-03	1891-12-22
1892	1892-01-23	1892-12-12
1893	1893-01-08	1893-12-17
1894	1894-01-01	1894-12-12
1895	1895-01-02	1895-12-27
1896	1896-01-04	1896-12-31
1897	1897-01-05	1897-12-23
1898	1898-01-04	1898-12-07
1899	1899-01-20	1899-12-30
1900	1900-01-11	1900-12-20
1901	1901-01-21	1901-11-06
1902	1902-01-15	1902-12-25
1903	1903-02-06	1903-12-12
1904	1904-01-10	1904-07-21
1907	1907-01-06	1907-12-27
1908	1908-01-28	1908-12-21
1909	1909-01-13	1909-12-25
1910	1910-01-18	1910-12-21
1911	1911-01-02	1911-11-18
1912	1912-01-13	1912-12-22
1913	1913-01-06	1913-11-07
1914	1914-01-21	1914-11-09
1915	1915-01-04	1915-12-30
1916	1916-01-13	1916-12-27
1918	1918-01-11	1918-12-24
1919	1919-02-17	1919-11-23
1920	1920-01-23	1920-12-30
1921	1921-01-04	1921-12-29
1922	1922-01-11	1922-12-26
1923	1923-01-01	1923-12-28
1924	1924-01-11	1924-12-26
1926	1926-01-25	1926-12-27
1927	1927-03-07	1927-12-28
1929	1929-01-18	1929-12-29
1930	1930-01-03	1930-12-23
1931	1931-01-01	1931-12-31
1932	1932-01-01	1932-12-25
1933	1933-01-02	1933-12-30
1934	1934-01-09	1934-12-24
1935	1935-01-03	1935-12-27
1936	1936-02-16	1936-11-28
1937	1937-02-01	1937-12-17
1938	1938-01-21	1938-12-31
1939	1939-01-01	1939-12-03
1940	1940-01-20	1940-12-07
1941	1941-01-18	1941-12-22
1942	1942-01-25	1942-11-11
1943	1943-01-12	1943-12-31
1944	1944-01-08	1944-09-03
1945	1945-01-06	1945-10-05
1946	1946-01-10	1946-11-25
1947	1947-01-15	1947-12-27
1948	1948-01-07	1948-12-20
1949	1949-01-30	1949-12-11
1950	1950-02-08	1950-12-28
1951	1951-01-03	1951-10-22
1952	1952-01-31	1952-12-16
1953	1953-02-07	1953-12-21
1954	1954-01-03	1954-11-21
1955	1955-01-25	1955-11-28
1956	1956-01-17	1956-12-17
1957	1957-02-10	1957-12-30
1958	1958-01-03	1958-12-23
1959	1959-01-24	1959-12-21
1960	1960-01-17	1960-12-18
1961	1961-01-27	1961-12-26
1962	1962-01-19	1962-12-27
1963	1963-01-04	1963-12-14
1964	1964-01-01	1964-12-28
1965	1965-04-23	1965-11-22
1966	1966-01-31	1966-12-31
1967	1967-01-13	1967-12-10
1968	1968-01-23	1968-12-08
1969	1969-02-24	1969-11-20
1970	1970-02-01	1970-12-25
1971	1971-01-10	1971-12-12
1972	1972-01-09	1972-12-17
1973	1973-02-18	1973-12-30
1974	1974-01-07	1974-12-19
1975	1975-01-27	1975-12-23
1976	1976-01-06	1976-12-28
1977	1977-01-09	1977-12-31
1978	1978-01-02	1978-12-09
1979	1979-01-01	1979-12-26
1980	1980-01-21	1980-12-28
1981	1981-01-25	1981-12-23
1982	1982-02-08	1982-11-17
1983	1983-03-20	1983-12-29

Every Fixed Threshold

Fixed thresholds at Seymour (Mag)
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	98	35	1891	16
25 mm (0.98 in): Days with 25 mm or more rain	96	11	1886	4
50 mm (1.97 in): Days with 50 mm or more rain	52	5	1953	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1881	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1878.

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Data for Seymour (Mag) 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Seymour (Mag) Threshold Days by Year

Key Facts for Seymour (Mag) Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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