Herefoss Threshold Days by Year (NOE00110402)

4 fixed thresholds counted per year at Herefoss (NOE00110402): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Herefoss Thresholds

Herefoss: days with 10 mm (0.39 in) or more of precipitation in 119 years, most in 2008 with 71.
Herefoss: days with 25 mm (0.98 in) or more of precipitation in 119 years, most in 1951 with 24.
Herefoss: days with 50 mm (1.97 in) or more of precipitation in 94 years, most in 1987 with 6.
Herefoss: days with 100 mm (3.94 in) or more of precipitation in 5 years, most in 1922 with 1.
4 fixed thresholds have at least one qualifying day at Herefoss.

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

119 years with a qualifying day

Days per year at Herefoss with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 71 in 2008.

Days with 10 mm (0.39 in) or more of precipitation per year at Herefoss
Year	Days	Decade average
1896	33	35
1897	49	35
1898	33	35
1899	25	35
1900	37	41.5
1901	32	41.5
1902	28	41.5
1903	56	41.5
1904	36	41.5
1905	41	41.5
1906	40	41.5
1907	48	41.5
1908	47	41.5
1909	50	41.5
1910	50	43.5
1911	44	43.5
1912	51	43.5
1913	31	43.5
1914	51	43.5
1915	36	43.5
1916	58	43.5
1917	42	43.5
1918	34	43.5
1919	38	43.5
1920	56	45.5
1921	20	45.5
1922	45	45.5
1923	43	45.5
1924	54	45.5
1925	51	45.5
1926	44	45.5
1927	56	45.5
1928	45	45.5
1929	41	45.5
1930	66	50.1
1931	42	50.1
1932	52	50.1
1933	31	50.1
1934	55	50.1
1935	56	50.1
1936	49	50.1
1937	46	50.1
1938	50	50.1
1939	54	50.1
1940	39	39.4
1941	31	39.4
1942	43	39.4
1943	32	39.4
1944	45	39.4
1945	33	39.4
1946	46	39.4
1947	29	39.4
1948	50	39.4
1949	46	39.4
1950	64	46.6
1951	62	46.6
1952	45	46.6
1953	33	46.6
1954	66	46.6
1955	27	46.6
1956	36	46.6
1957	35	46.6
1958	48	46.6
1959	50	46.6
1960	47	44.4
1961	53	44.4
1962	47	44.4
1963	38	44.4
1964	31	44.4
1965	46	44.4
1966	49	44.4
1967	56	44.4
1968	43	44.4
1969	34	44.4
1970	46	38.2
1971	26	38.2
1972	40	38.2
1973	32	38.2
1974	45	38.2
1975	35	38.2
1976	42	38.2
1977	43	38.2
1978	27	38.2
1979	46	38.2
1980	40	43.8
1981	40	43.8
1982	52	43.8
1983	39	43.8
1984	50	43.8
1985	38	43.8
1986	43	43.8
1987	47	43.8
1988	55	43.8
1989	34	43.8
1990	43	41.3
1991	37	41.3
1992	38	41.3
1993	35	41.3
1994	45	41.3
1995	42	41.3
1996	36	41.3
1997	34	41.3
1998	50	41.3
1999	53	41.3
2000	63	49.5
2001	47	49.5
2002	33	49.5
2003	41	49.5
2004	50	49.5
2005	36	49.5
2006	55	49.5
2007	42	49.5
2008	71	49.5
2009	57	49.5
2010	31	51
2011	54	51
2012	59	51
2013	45	51
2014	66	51

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

First to last qualifying date each year at Herefoss
Year	First date	Last date
1896	1896-01-14	1896-11-14
1897	1897-01-16	1897-12-31
1898	1898-02-02	1898-12-09
1899	1899-01-17	1899-12-31
1900	1900-01-03	1900-12-08
1901	1901-01-19	1901-12-30
1902	1902-01-24	1902-12-28
1903	1903-01-02	1903-12-13
1904	1904-01-07	1904-12-04
1905	1905-02-01	1905-11-26
1906	1906-01-09	1906-12-04
1907	1907-01-02	1907-12-13
1908	1908-01-06	1908-12-18
1909	1909-01-11	1909-12-31
1910	1910-01-11	1910-12-21
1911	1911-02-21	1911-12-28
1912	1912-02-23	1912-12-29
1913	1913-01-05	1913-12-16
1914	1914-02-08	1914-12-31
1915	1915-01-01	1915-12-31
1916	1916-01-01	1916-12-23
1917	1917-01-03	1917-12-20
1918	1918-01-14	1918-12-26
1919	1919-01-01	1919-12-31
1920	1920-01-07	1920-12-31
1921	1921-01-17	1921-12-26
1922	1922-01-15	1922-12-30
1923	1923-01-02	1923-12-08
1924	1924-01-10	1924-12-31
1925	1925-01-01	1925-12-29
1926	1926-01-06	1926-12-17
1927	1927-01-06	1927-12-22
1928	1928-01-02	1928-12-25
1929	1929-01-30	1929-12-29
1930	1930-01-05	1930-12-31
1931	1931-01-22	1931-12-03
1932	1932-01-04	1932-12-17
1933	1933-01-02	1933-11-14
1934	1934-01-04	1934-12-29
1935	1935-01-11	1935-12-30
1936	1936-01-01	1936-12-16
1937	1937-01-13	1937-12-12
1938	1938-01-13	1938-12-29
1939	1939-01-07	1939-12-04
1940	1940-01-07	1940-12-18
1941	1941-02-28	1941-12-14
1942	1942-03-17	1942-12-28
1943	1943-01-21	1943-12-22
1944	1944-01-13	1944-12-17
1945	1945-01-26	1945-12-25
1946	1946-01-09	1946-12-30
1947	1947-01-07	1947-12-05
1948	1948-01-01	1948-12-31
1949	1949-01-01	1949-12-25
1950	1950-01-04	1950-12-16
1951	1951-01-10	1951-12-30
1952	1952-01-02	1952-12-30
1953	1953-01-31	1953-12-17
1954	1954-01-13	1954-12-26
1955	1955-01-10	1955-12-28
1956	1956-01-09	1956-12-30
1957	1957-01-04	1957-12-20
1958	1958-01-05	1958-12-28
1959	1959-01-01	1959-12-27
1960	1960-01-22	1960-12-30
1961	1961-01-01	1961-12-30
1962	1962-01-08	1962-12-14
1963	1963-03-10	1963-11-25
1964	1964-01-04	1964-12-30
1965	1965-01-10	1965-12-25
1966	1966-01-01	1966-12-31
1967	1967-01-30	1967-12-31
1968	1968-01-03	1968-12-23
1969	1969-01-04	1969-12-15
1970	1970-01-09	1970-12-04
1971	1971-01-07	1971-12-19
1972	1972-01-19	1972-12-11
1973	1973-01-15	1973-12-20
1974	1974-01-07	1974-12-16
1975	1975-01-03	1975-12-02
1976	1976-01-02	1976-12-31
1977	1977-01-01	1977-12-27
1978	1978-01-18	1978-11-26
1979	1979-01-10	1979-12-27
1980	1980-01-04	1980-12-17
1981	1981-03-18	1981-12-30
1982	1982-03-02	1982-12-20
1983	1983-01-03	1983-12-25
1984	1984-01-02	1984-12-31
1985	1985-01-21	1985-12-24
1986	1986-01-10	1986-12-18
1987	1987-01-04	1987-11-15
1988	1988-01-01	1988-12-04
1989	1989-02-04	1989-12-24
1990	1990-01-14	1990-12-28
1991	1991-01-01	1991-12-17
1992	1992-03-10	1992-12-18
1993	1993-01-09	1993-12-29
1994	1994-01-05	1994-12-30
1995	1995-01-17	1995-12-07
1996	1996-01-06	1996-12-14
1997	1997-02-10	1997-12-30
1998	1998-01-02	1998-12-27
1999	1999-01-02	1999-12-25
2000	2000-01-05	2000-12-12
2001	2001-01-01	2001-12-04
2002	2002-01-23	2002-12-28
2003	2003-01-19	2003-12-26
2004	2004-01-03	2004-12-28
2005	2005-01-01	2005-12-04
2006	2006-01-11	2006-12-31
2007	2007-01-07	2007-12-28
2008	2008-01-02	2008-12-13
2009	2009-01-17	2009-12-25
2010	2010-02-26	2010-12-18
2011	2011-01-05	2011-12-31
2012	2012-01-03	2012-12-29
2013	2013-01-27	2013-12-30
2014	2014-01-01	2014-12-14

Every Fixed Threshold

Fixed thresholds at Herefoss
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	119	71	2008	66
25 mm (0.98 in): Days with 25 mm or more rain	119	24	1951	21
50 mm (1.97 in): Days with 50 mm or more rain	94	6	1987	2
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1922	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1896.

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Data for Herefoss 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).

Herefoss Threshold Days by Year (NOE00110402)

Key Facts for Herefoss Thresholds

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

Every Fixed Threshold

Download the Data

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