Northdown (Hamley) Threshold Days by Year

4 fixed thresholds counted per year at Northdown (Hamley) (ASN00091039): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Northdown (Hamley) Thresholds

Northdown (Hamley): days with 10 mm (0.39 in) or more of precipitation in 115 years, most in 1955 with 45.
Northdown (Hamley): days with 25 mm (0.98 in) or more of precipitation in 114 years, most in 2016 with 12.
Northdown (Hamley): days with 50 mm (1.97 in) or more of precipitation in 28 years, most in 2016 with 4.
Northdown (Hamley): days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1974 with 2.
4 fixed thresholds have at least one qualifying day at Northdown (Hamley).

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

115 years with a qualifying day

Days per year at Northdown (Hamley) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 1955.

Days with 10 mm (0.39 in) or more of precipitation per year at Northdown (Hamley)
Year	Days	Decade average
1910	36	28.6
1911	27	28.6
1912	32	28.6
1913	24	28.6
1914	14	28.6
1915	31	28.6
1916	38	28.6
1917	41	28.6
1918	25	28.6
1919	18	28.6
1920	24	27.1
1921	27	27.1
1922	24	27.1
1923	37	27.1
1924	32	27.1
1925	19	27.1
1926	26	27.1
1927	20	27.1
1928	31	27.1
1929	31	27.1
1930	39	30.1
1931	30	30.1
1932	38	30.1
1933	17	30.1
1934	34	30.1
1935	23	30.1
1936	27	30.1
1937	28	30.1
1938	29	30.1
1939	36	30.1
1940	17	23
1941	17	23
1942	32	23
1943	18	23
1944	20	23
1945	22	23
1946	30	23
1947	32	23
1948	25	23
1949	17	23
1950	27	27.9
1951	22	27.9
1952	33	27.9
1953	31	27.9
1954	24	27.9
1955	45	27.9
1956	33	27.9
1957	20	27.9
1958	28	27.9
1959	16	27.9
1960	32	27.8
1961	20	27.8
1962	25	27.8
1963	30	27.8
1964	33	27.8
1965	21	27.8
1966	30	27.8
1967	21	27.8
1968	38	27.8
1969	28	27.8
1970	24	26.6
1971	40	26.6
1972	14	26.6
1973	35	26.6
1974	34	26.6
1975	33	26.6
1976	19	26.6
1977	17	26.6
1978	23	26.6
1980	19	23.9
1981	22	23.9
1982	16	23.9
1983	20	23.9
1984	32	23.9
1985	31	23.9
1986	26	23.9
1987	14	23.9
1988	30	23.9
1989	29	23.9
1990	23	24.2
1991	27	24.2
1992	38	24.2
1993	24	24.2
1994	12	24.2
1995	21	24.2
1996	35	24.2
1997	19	24.2
1998	21	24.2
1999	22	24.2
2000	20	20.4
2001	30	20.4
2002	14	20.4
2003	27	20.4
2004	22	20.4
2005	23	20.4
2006	5	20.4
2007	23	20.4
2008	12	20.4
2009	28	20.4
2010	30	25
2012	23	25
2013	29	25
2014	17	25
2015	22	25
2016	43	25
2017	24	25
2018	24	25
2019	13	25
2020	27	21.7
2021	21	21.7
2022	21	21.7
2023	22	21.7
2024	25	21.7
2025	18	21.7
2026	18	21.7

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

First to last qualifying date each year at Northdown (Hamley)
Year	First date	Last date
1910	1910-01-09	1910-12-03
1911	1911-02-04	1911-12-30
1912	1912-01-02	1912-12-21
1913	1913-01-02	1913-11-22
1914	1914-01-26	1914-12-02
1915	1915-02-20	1915-11-14
1916	1916-01-29	1916-12-21
1917	1917-01-04	1917-12-18
1918	1918-01-15	1918-12-19
1919	1919-04-05	1919-12-17
1920	1920-01-03	1920-12-16
1921	1921-01-02	1921-11-28
1922	1922-01-12	1922-12-30
1923	1923-01-05	1923-12-15
1924	1924-01-06	1924-12-01
1925	1925-03-03	1925-12-21
1926	1926-02-17	1926-12-18
1927	1927-01-06	1927-12-04
1928	1928-01-01	1928-11-08
1929	1929-01-17	1929-12-27
1930	1930-02-19	1930-12-25
1931	1931-02-14	1931-11-17
1932	1932-02-11	1932-12-24
1933	1933-01-26	1933-11-30
1934	1934-02-24	1934-12-31
1935	1935-02-08	1935-12-03
1936	1936-02-09	1936-12-04
1937	1937-01-19	1937-12-26
1938	1938-01-02	1938-12-10
1939	1939-02-17	1939-11-30
1940	1940-01-06	1940-12-28
1941	1941-03-03	1941-11-14
1942	1942-02-23	1942-12-24
1943	1943-01-12	1943-11-18
1944	1944-01-04	1944-12-21
1945	1945-01-16	1945-12-17
1946	1946-01-04	1946-12-29
1947	1947-01-17	1947-12-25
1948	1948-02-04	1948-12-28
1949	1949-02-22	1949-11-18
1950	1950-01-14	1950-12-30
1951	1951-03-01	1951-12-18
1952	1952-01-14	1952-11-20
1953	1953-04-02	1953-12-23
1954	1954-02-01	1954-12-12
1955	1955-02-13	1955-12-31
1956	1956-01-20	1956-12-13
1957	1957-02-08	1957-12-26
1958	1958-02-19	1958-12-10
1959	1959-01-26	1959-12-18
1960	1960-01-09	1960-11-22
1961	1961-02-24	1961-12-18
1962	1962-01-17	1962-11-11
1963	1963-01-15	1963-12-30
1964	1964-02-07	1964-12-01
1965	1965-03-08	1965-12-02
1966	1966-01-18	1966-12-29
1967	1967-01-13	1967-12-18
1968	1968-01-21	1968-11-28
1969	1969-01-15	1969-12-13
1970	1970-01-03	1970-12-28
1971	1971-01-16	1971-12-31
1972	1972-01-12	1972-11-06
1973	1973-01-13	1973-12-31
1974	1974-01-17	1974-12-28
1975	1975-01-09	1975-12-29
1976	1976-01-09	1976-12-19
1977	1977-01-23	1977-11-29
1978	1978-01-06	1978-12-04
1980	1980-02-21	1980-12-03
1981	1981-01-09	1981-11-10
1982	1982-01-07	1982-12-08
1983	1983-03-07	1983-11-09
1984	1984-01-16	1984-12-25
1985	1985-01-31	1985-12-30
1986	1986-01-13	1986-12-31
1987	1987-01-06	1987-12-21
1988	1988-04-23	1988-12-28
1989	1989-02-16	1989-12-26
1990	1990-02-01	1990-12-23
1991	1991-01-05	1991-12-16
1992	1992-01-01	1992-12-21
1993	1993-01-17	1993-12-27
1994	1994-01-06	1994-12-20
1995	1995-01-29	1995-12-18
1996	1996-01-01	1996-12-31
1997	1997-01-15	1997-11-01
1998	1998-01-28	1998-12-27
1999	1999-01-23	1999-12-04
2000	2000-01-04	2000-11-12
2001	2001-01-05	2001-11-24
2002	2002-01-01	2002-11-03
2003	2003-01-01	2003-12-22
2004	2004-01-28	2004-11-06
2005	2005-01-05	2005-12-18
2006	2006-01-01	2006-12-23
2007	2007-01-07	2007-12-22
2008	2008-02-23	2008-11-20
2009	2009-03-15	2009-12-18
2010	2010-02-05	2010-12-18
2012	2012-01-08	2012-12-20
2013	2013-02-27	2013-12-22
2014	2014-01-06	2014-10-27
2015	2015-01-14	2015-12-26
2016	2016-01-29	2016-12-29
2017	2017-01-14	2017-12-03
2018	2018-02-24	2018-12-22
2019	2019-02-07	2019-11-06
2020	2020-01-23	2020-12-23
2021	2021-01-04	2021-11-04
2022	2022-01-07	2022-11-20
2023	2023-02-26	2023-12-19
2024	2024-01-08	2024-12-03
2025	2025-01-24	2025-11-08
2026	2026-03-02	2026-09-05

Every Fixed Threshold

Fixed thresholds at Northdown (Hamley)
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	115	45	1955	18
25 mm (0.98 in): Days with 25 mm or more rain	114	12	2016	3
50 mm (1.97 in): Days with 50 mm or more rain	28	4	2016	1
100 mm (3.94 in): Days with 100 mm or more rain	2	2	1974	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1910.

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Data for Northdown (Hamley) 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Northdown (Hamley) Threshold Days by Year

Key Facts for Northdown (Hamley) Thresholds

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

Every Fixed Threshold

Download the Data

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