Swansea (Kelvedon) Threshold Days by Year

4 fixed thresholds counted per year at Swansea (Kelvedon) (ASN00092018): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Swansea (Kelvedon) Thresholds

Swansea (Kelvedon): days with 10 mm (0.39 in) or more of precipitation in 95 years, most in 1916 with 34.
Swansea (Kelvedon): days with 25 mm (0.98 in) or more of precipitation in 89 years, most in 1914 with 10.
Swansea (Kelvedon): days with 50 mm (1.97 in) or more of precipitation in 50 years, most in 1935 with 4.
Swansea (Kelvedon): days with 100 mm (3.94 in) or more of precipitation in 10 years, most in 1946 with 2.
4 fixed thresholds have at least one qualifying day at Swansea (Kelvedon).

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

95 years with a qualifying day

Days per year at Swansea (Kelvedon) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1916.

Days with 10 mm (0.39 in) or more of precipitation per year at Swansea (Kelvedon)
Year	Days	Decade average
1914	15	19.8
1915	19	19.8
1916	34	19.8
1917	18	19.8
1918	24	19.8
1919	9	19.8
1920	19	17
1921	15	17
1922	17	17
1923	16	17
1924	18	17
1925	16	17
1926	19	17
1927	18	17
1928	11	17
1929	21	17
1930	16	18.9
1931	24	18.9
1932	19	18.9
1933	16	18.9
1934	27	18.9
1935	17	18.9
1936	10	18.9
1937	21	18.9
1938	20	18.9
1939	19	18.9
1940	12	15.2
1941	14	15.2
1942	17	15.2
1943	13	15.2
1944	14	15.2
1945	10	15.2
1946	21	15.2
1947	19	15.2
1948	12	15.2
1949	20	15.2
1950	22	17.3
1951	13	17.3
1952	22	17.3
1953	16	17.3
1954	15	17.3
1955	13	17.3
1956	31	17.3
1957	10	17.3
1958	19	17.3
1959	12	17.3
1960	19	14.5
1961	9	14.5
1962	12	14.5
1963	10	14.5
1964	18	14.5
1965	13	14.5
1966	16	14.5
1967	15	14.5
1968	8	14.5
1969	25	14.5
1970	31	19.2
1971	22	19.2
1972	9	19.2
1973	17	19.2
1974	32	19.2
1975	19	19.2
1976	20	19.2
1977	12	19.2
1978	21	19.2
1979	9	19.2
1980	9	14.8
1981	17	14.8
1982	6	14.8
1983	15	14.8
1984	16	14.8
1985	22	14.8
1986	24	14.8
1987	9	14.8
1988	15	14.8
1989	15	14.8
1990	11	13.8
1991	12	13.8
1993	24	13.8
1994	7	13.8
1995	19	13.8
1996	11	13.8
1997	13	13.8
1998	16	13.8
1999	11	13.8
2000	15	14.3
2003	17	14.3
2004	17	14.3
2005	17	14.3
2006	10	14.3
2007	10	14.3
2008	8	14.3
2009	20	14.3
2013	20	14
2014	8	14

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

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

Every Fixed Threshold

Fixed thresholds at Swansea (Kelvedon)
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	95	34	1916	8
25 mm (0.98 in): Days with 25 mm or more rain	89	10	1914	5
50 mm (1.97 in): Days with 50 mm or more rain	50	4	1935	1
100 mm (3.94 in): Days with 100 mm or more rain	10	2	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 1914.

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Data for Swansea (Kelvedon) 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

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

Swansea (Kelvedon) Threshold Days by Year

Key Facts for Swansea (Kelvedon) Thresholds

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

Every Fixed Threshold

Download the Data

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