Woolsthorpe Threshold Days by Year (ASN00090084)

4 fixed thresholds counted per year at Woolsthorpe (ASN00090084): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Woolsthorpe Thresholds

Woolsthorpe: days with 10 mm (0.39 in) or more of precipitation in 130 years, most in 1986 with 33.
Woolsthorpe: days with 25 mm (0.98 in) or more of precipitation in 103 years, most in 1946 with 8.
Woolsthorpe: days with 50 mm (1.97 in) or more of precipitation in 15 years, most in 1946 with 2.
Woolsthorpe: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1946 with 1.
4 fixed thresholds have at least one qualifying day at Woolsthorpe.

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

130 years with a qualifying day

Days per year at Woolsthorpe with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1986.

Days with 10 mm (0.39 in) or more of precipitation per year at Woolsthorpe
Year	Days	Decade average
1885	19	19
1886	20	19
1887	16	19
1888	19	19
1889	21	19
1890	15	17.7
1891	18	17.7
1892	20	17.7
1893	20	17.7
1894	28	17.7
1896	14	17.7
1897	12	17.7
1898	8	17.7
1899	24	17.7
1900	11	14.2
1901	15	14.2
1902	13	14.2
1903	17	14.2
1904	14	14.2
1905	15	14.2
1906	10	14.2
1907	18	14.2
1908	14	14.2
1909	15	14.2
1910	23	16.2
1911	27	16.2
1912	17	16.2
1913	12	16.2
1914	9	16.2
1915	14	16.2
1916	15	16.2
1917	16	16.2
1918	18	16.2
1919	11	16.2
1920	12	16
1922	15	16
1923	19	16
1924	19	16
1925	8	16
1926	18	16
1927	14	16
1928	19	16
1929	20	16
1930	21	16.5
1931	17	16.5
1932	18	16.5
1933	11	16.5
1934	17	16.5
1935	15	16.5
1936	12	16.5
1937	16	16.5
1938	11	16.5
1939	27	16.5
1940	20	20.7
1941	25	20.7
1942	24	20.7
1943	16	20.7
1944	13	20.7
1945	18	20.7
1946	26	20.7
1947	24	20.7
1948	22	20.7
1949	19	20.7
1950	15	21.9
1951	29	21.9
1952	32	21.9
1953	23	21.9
1954	13	21.9
1955	27	21.9
1956	24	21.9
1957	23	21.9
1958	16	21.9
1959	17	21.9
1960	28	17.6
1961	19	17.6
1962	11	17.6
1963	11	17.6
1964	32	17.6
1965	16	17.6
1966	14	17.6
1967	10	17.6
1968	19	17.6
1969	16	17.6
1970	23	20.6
1971	27	20.6
1972	17	20.6
1973	20	20.6
1974	15	20.6
1975	29	20.6
1976	17	20.6
1977	20	20.6
1978	25	20.6
1979	13	20.6
1980	19	19.5
1981	15	19.5
1982	13	19.5
1983	21	19.5
1984	16	19.5
1985	22	19.5
1986	33	19.5
1987	18	19.5
1988	22	19.5
1989	16	19.5
1990	27	20.8
1991	27	20.8
1992	27	20.8
1993	23	20.8
1994	15	20.8
1995	24	20.8
1996	14	20.8
1997	9	20.8
1998	21	20.8
2000	22	16
2006	10	16
2008	17	16
2009	15	16
2011	17	17.7
2012	12	17.7
2013	18	17.7
2014	13	17.7
2016	26	17.7
2017	25	17.7
2018	13	17.7
2020	22	16.1
2021	22	16.1
2022	24	16.1
2023	16	16.1
2024	6	16.1
2025	13	16.1
2026	10	16.1

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

First to last qualifying date each year at Woolsthorpe
Year	First date	Last date
1885	1885-01-05	1885-11-10
1886	1886-01-05	1886-12-08
1887	1887-04-03	1887-11-29
1888	1888-01-03	1888-12-13
1889	1889-01-01	1889-12-20
1890	1890-03-17	1890-11-29
1891	1891-01-05	1891-11-19
1892	1892-03-14	1892-12-13
1893	1893-01-19	1893-12-24
1894	1894-02-27	1894-12-27
1896	1896-01-17	1896-12-27
1897	1897-01-04	1897-11-01
1898	1898-03-13	1898-11-21
1899	1899-01-01	1899-12-27
1900	1900-01-10	1900-12-12
1901	1901-01-06	1901-12-22
1902	1902-02-24	1902-12-19
1903	1903-01-21	1903-11-01
1904	1904-01-02	1904-10-18
1905	1905-01-28	1905-12-02
1906	1906-05-13	1906-11-27
1907	1907-03-04	1907-12-27
1908	1908-02-07	1908-11-22
1909	1909-01-23	1909-10-17
1910	1910-01-16	1910-12-23
1911	1911-02-05	1911-12-26
1912	1912-03-28	1912-12-10
1913	1913-02-15	1913-12-23
1914	1914-04-21	1914-12-15
1915	1915-01-20	1915-11-01
1916	1916-01-28	1916-12-29
1917	1917-02-15	1917-11-15
1918	1918-01-14	1918-11-19
1919	1919-02-03	1919-12-28
1920	1920-03-21	1920-12-17
1922	1922-04-05	1922-10-29
1923	1923-05-10	1923-12-16
1924	1924-01-26	1924-11-09
1925	1925-02-17	1925-11-20
1926	1926-01-07	1926-12-06
1927	1927-01-05	1927-12-02
1928	1928-01-18	1928-10-26
1929	1929-01-28	1929-12-28
1930	1930-02-21	1930-12-26
1931	1931-01-24	1931-11-16
1932	1932-02-05	1932-12-24
1933	1933-03-05	1933-11-30
1934	1934-01-09	1934-12-29
1935	1935-01-05	1935-11-16
1936	1936-04-21	1936-12-13
1937	1937-01-02	1937-12-08
1938	1938-01-07	1938-11-04
1939	1939-02-17	1939-12-05
1940	1940-01-06	1940-12-31
1941	1941-01-25	1941-12-04
1942	1942-01-20	1942-12-19
1943	1943-02-18	1943-11-05
1944	1944-02-07	1944-12-23
1945	1945-01-15	1945-12-27
1946	1946-01-17	1946-12-28
1947	1947-02-04	1947-12-23
1948	1948-01-05	1948-12-26
1949	1949-01-16	1949-11-22
1950	1950-02-15	1950-12-20
1951	1951-02-18	1951-12-20
1952	1952-01-25	1952-12-10
1953	1953-04-18	1953-12-07
1954	1954-01-28	1954-12-12
1955	1955-01-27	1955-12-31
1956	1956-01-02	1956-12-19
1957	1957-02-07	1957-12-27
1958	1958-02-18	1958-11-14
1959	1959-01-24	1959-12-27
1960	1960-01-09	1960-12-15
1961	1961-04-07	1961-12-17
1962	1962-02-14	1962-10-05
1963	1963-01-14	1963-10-28
1964	1964-01-15	1964-12-23
1965	1965-03-12	1965-12-07
1966	1966-04-08	1966-12-13
1967	1967-01-13	1967-12-30
1968	1968-03-25	1968-11-02
1969	1969-02-10	1969-12-03
1970	1970-01-03	1970-12-31
1971	1971-01-01	1971-12-31
1972	1972-01-12	1972-11-24
1973	1973-02-06	1973-12-22
1974	1974-01-14	1974-12-12
1975	1975-01-11	1975-11-23
1976	1976-01-25	1976-11-30
1977	1977-01-15	1977-11-29
1978	1978-04-11	1978-12-13
1979	1979-01-20	1979-12-17
1980	1980-01-12	1980-12-17
1981	1981-01-27	1981-12-13
1982	1982-01-07	1982-12-08
1983	1983-01-27	1983-11-30
1984	1984-01-01	1984-12-20
1985	1985-03-16	1985-12-23
1986	1986-01-16	1986-12-17
1987	1987-01-03	1987-12-05
1988	1988-01-01	1988-12-25
1989	1989-01-11	1989-11-17
1990	1990-02-01	1990-12-20
1991	1991-01-04	1991-12-18
1992	1992-02-06	1992-12-28
1993	1993-01-24	1993-12-28
1994	1994-04-07	1994-12-21
1995	1995-02-16	1995-12-18
1996	1996-03-16	1996-10-01
1997	1997-01-22	1997-11-14
1998	1998-02-08	1998-12-27
2000	2000-01-04	2000-12-23
2006	2006-02-09	2006-09-09
2008	2008-03-25	2008-12-14
2009	2009-03-13	2009-12-31
2011	2011-01-12	2011-12-19
2012	2012-01-11	2012-10-11
2013	2013-02-01	2013-12-23
2014	2014-03-22	2014-12-04
2016	2016-01-31	2016-12-28
2017	2017-01-07	2017-12-29
2018	2018-04-15	2018-11-23
2020	2020-02-01	2020-12-22
2021	2021-01-02	2021-10-29
2022	2022-01-28	2022-12-12
2023	2023-01-18	2023-12-25
2024	2024-01-08	2024-12-01
2025	2025-05-27	2025-11-17
2026	2026-03-27	2026-08-20

Every Fixed Threshold

Fixed thresholds at Woolsthorpe
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	130	33	1986	10
25 mm (0.98 in): Days with 25 mm or more rain	103	8	1946	1
50 mm (1.97 in): Days with 50 mm or more rain	15	2	1946	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1946	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1885.

Download the Data

Data for Woolsthorpe 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).

Woolsthorpe Threshold Days by Year (ASN00090084)

Key Facts for Woolsthorpe Thresholds

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

Every Fixed Threshold

Download the Data

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