Redhill Threshold Days by Year

3 fixed thresholds counted per year at Redhill (ASN00021045): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Redhill Thresholds

Redhill: days with 10 mm (0.39 in) or more of precipitation in 131 years, most in 1889 with 23.
Redhill: days with 25 mm (0.98 in) or more of precipitation in 104 years, most in 1889 with 6.
Redhill: days with 50 mm (1.97 in) or more of precipitation in 20 years, most in 1921 with 2.
3 fixed thresholds have at least one qualifying day at Redhill.

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

131 years with a qualifying day

Days per year at Redhill with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1889.

Days with 10 mm (0.39 in) or more of precipitation per year at Redhill
Year	Days	Decade average
1884	12	11.7
1885	7	11.7
1886	8	11.7
1887	14	11.7
1888	6	11.7
1889	23	11.7
1890	21	11.9
1891	6	11.9
1892	11	11.9
1893	19	11.9
1894	12	11.9
1895	12	11.9
1896	10	11.9
1897	12	11.9
1898	12	11.9
1899	4	11.9
1900	12	12.6
1901	11	12.6
1902	6	12.6
1903	19	12.6
1904	10	12.6
1905	11	12.6
1906	12	12.6
1907	14	12.6
1908	14	12.6
1909	17	12.6
1910	23	11.2
1911	8	11.2
1912	10	11.2
1913	11	11.2
1914	5	11.2
1915	8	11.2
1916	15	11.2
1918	12	11.2
1919	9	11.2
1920	18	12
1921	16	12
1922	12	12
1923	14	12
1924	13	12
1925	10	12
1926	13	12
1927	7	12
1928	6	12
1929	11	12
1930	7	10.9
1931	10	10.9
1932	12	10.9
1933	14	10.9
1934	8	10.9
1935	10	10.9
1936	10	10.9
1937	15	10.9
1938	13	10.9
1939	10	10.9
1940	5	11.5
1941	15	11.5
1942	16	11.5
1943	9	11.5
1944	9	11.5
1945	13	11.5
1946	12	11.5
1947	16	11.5
1948	5	11.5
1949	15	11.5
1950	10	10.3
1951	10	10.3
1952	14	10.3
1953	10	10.3
1954	11	10.3
1955	8	10.3
1956	19	10.3
1957	6	10.3
1958	10	10.3
1959	5	10.3
1960	18	9.8
1961	12	9.8
1962	6	9.8
1963	11	9.8
1964	7	9.8
1965	5	9.8
1966	9	9.8
1967	3	9.8
1968	13	9.8
1969	14	9.8
1970	8	11
1971	16	11
1972	6	11
1973	14	11
1974	21	11
1975	14	11
1976	7	11
1977	3	11
1978	9	11
1979	12	11
1984	8	8.8
1985	8	8.8
1986	11	8.8
1987	9	8.8
1988	7	8.8
1989	10	8.8
1990	10	12.1
1991	13	12.1
1992	20	12.1
1994	7	12.1
1995	8	12.1
1996	15	12.1
1997	14	12.1
1998	9	12.1
1999	13	12.1
2000	15	11
2001	15	11
2002	7	11
2003	13	11
2004	8	11
2005	8	11
2006	11	11
2007	11	11
2008	7	11
2009	15	11
2010	13	10.7
2011	13	10.7
2012	7	10.7
2013	10	10.7
2014	12	10.7
2015	12	10.7
2016	20	10.7
2017	7	10.7
2018	7	10.7
2019	6	10.7
2020	17	17

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

First to last qualifying date each year at Redhill
Year	First date	Last date
1884	1884-03-28	1884-12-15
1885	1885-02-28	1885-12-23
1886	1886-04-24	1886-11-25
1887	1887-04-02	1887-10-27
1888	1888-04-10	1888-08-31
1889	1889-01-02	1889-11-15
1890	1890-01-21	1890-11-24
1891	1891-01-05	1891-12-12
1892	1892-01-23	1892-12-12
1893	1893-04-01	1893-11-13
1894	1894-01-13	1894-12-26
1895	1895-01-04	1895-12-17
1896	1896-01-24	1896-12-28
1897	1897-01-09	1897-11-01
1898	1898-02-25	1898-11-25
1899	1899-02-26	1899-06-21
1900	1900-04-14	1900-12-03
1901	1901-02-26	1901-12-21
1902	1902-03-26	1902-12-17
1903	1903-02-15	1903-12-15
1904	1904-01-02	1904-12-17
1905	1905-01-03	1905-10-22
1906	1906-03-25	1906-12-18
1907	1907-04-05	1907-11-04
1908	1908-01-31	1908-10-16
1909	1909-01-04	1909-11-09
1910	1910-03-05	1910-10-18
1911	1911-02-06	1911-10-15
1912	1912-02-23	1912-11-15
1913	1913-03-04	1913-12-23
1914	1914-03-13	1914-12-15
1915	1915-04-12	1915-12-05
1916	1916-05-14	1916-11-24
1918	1918-03-05	1918-10-04
1919	1919-02-16	1919-12-27
1920	1920-03-07	1920-12-27
1921	1921-01-02	1921-11-26
1922	1922-04-05	1922-12-09
1923	1923-01-06	1923-12-18
1924	1924-01-02	1924-11-11
1925	1925-01-13	1925-09-18
1926	1926-02-25	1926-10-12
1927	1927-03-22	1927-11-01
1928	1928-02-01	1928-10-03
1929	1929-02-20	1929-12-28
1930	1930-04-24	1930-10-24
1931	1931-03-13	1931-12-04
1932	1932-02-05	1932-09-29
1933	1933-03-05	1933-12-14
1934	1934-08-15	1934-11-08
1935	1935-01-02	1935-12-24
1936	1936-01-08	1936-12-17
1937	1937-01-18	1937-12-11
1938	1938-01-03	1938-10-23
1939	1939-02-25	1939-11-19
1940	1940-01-05	1940-11-09
1941	1941-01-24	1941-11-19
1942	1942-01-20	1942-12-25
1943	1943-02-17	1943-11-03
1944	1944-04-08	1944-12-21
1945	1945-01-10	1945-12-27
1946	1946-01-17	1946-12-25
1947	1947-01-29	1947-12-03
1948	1948-04-11	1948-12-25
1949	1949-02-19	1949-11-21
1950	1950-02-02	1950-10-05
1951	1951-05-13	1951-10-23
1952	1952-01-25	1952-11-27
1953	1953-06-10	1953-12-07
1954	1954-01-28	1954-11-20
1955	1955-02-15	1955-10-31
1956	1956-01-20	1956-11-16
1957	1957-07-05	1957-12-29
1958	1958-03-07	1958-09-12
1959	1959-02-16	1959-09-19
1960	1960-01-18	1960-11-12
1961	1961-04-07	1961-12-14
1962	1962-03-27	1962-12-26
1963	1963-01-14	1963-11-07
1964	1964-01-09	1964-09-29
1965	1965-05-08	1965-11-11
1966	1966-02-13	1966-12-02
1967	1967-02-23	1967-07-10
1968	1968-02-19	1968-12-23
1969	1969-01-14	1969-11-05
1970	1970-04-09	1970-09-28
1971	1971-02-22	1971-12-10
1972	1972-01-12	1972-12-27
1973	1973-02-05	1973-11-05
1974	1974-01-29	1974-10-24
1975	1975-01-08	1975-10-25
1976	1976-03-01	1976-11-25
1977	1977-01-15	1977-11-29
1978	1978-05-10	1978-12-04
1979	1979-01-17	1979-11-14
1984	1984-05-22	1984-11-01
1985	1985-03-16	1985-12-10
1986	1986-06-18	1986-12-07
1987	1987-01-25	1987-08-27
1988	1988-05-20	1988-11-04
1989	1989-03-10	1989-11-06
1990	1990-05-17	1990-12-07
1991	1991-04-25	1991-11-06
1992	1992-03-01	1992-12-25
1994	1994-06-06	1994-11-01
1995	1995-01-14	1995-10-22
1996	1996-01-25	1996-10-17
1997	1997-01-22	1997-12-18
1998	1998-02-07	1998-12-13
1999	1999-01-08	1999-12-03
2000	2000-02-20	2000-12-22
2001	2001-02-13	2001-11-23
2002	2002-05-19	2002-12-31
2003	2003-02-20	2003-12-20
2004	2004-06-02	2004-12-09
2005	2005-01-04	2005-11-07
2006	2006-02-24	2006-12-22
2007	2007-01-19	2007-12-22
2008	2008-04-27	2008-12-12
2009	2009-04-24	2009-11-22
2010	2010-01-13	2010-12-08
2011	2011-02-05	2011-12-18
2012	2012-01-08	2012-07-10
2013	2013-02-28	2013-09-13
2014	2014-02-15	2014-11-21
2015	2015-01-09	2015-11-05
2016	2016-01-22	2016-12-28
2017	2017-04-20	2017-12-08
2018	2018-05-04	2018-11-22
2019	2019-05-10	2019-09-21
2020	2020-02-01	2020-12-21

Every Fixed Threshold

Fixed thresholds at Redhill
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	131	23	1889	17
25 mm (0.98 in): Days with 25 mm or more rain	104	6	1889	2
50 mm (1.97 in): Days with 50 mm or more rain	20	2	1921	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1884.

Download the Data

Data for Redhill 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).

Redhill Threshold Days by Year

Key Facts for Redhill Thresholds

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

Every Fixed Threshold

Download the Data

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