Chichester Dam Threshold Days by Year (ASN00061151)

5 fixed thresholds counted per year at Chichester Dam (ASN00061151): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chichester Dam Thresholds

Chichester Dam: days with 10 mm (0.39 in) or more of precipitation in 81 years, most in 1963 with 63.
Chichester Dam: days with 25 mm (0.98 in) or more of precipitation in 81 years, most in 1963 with 25.
Chichester Dam: days with 50 mm (1.97 in) or more of precipitation in 78 years, most in 2025 with 10.
Chichester Dam: days with 100 mm (3.94 in) or more of precipitation in 37 years, most in 1955 with 5.
5 fixed thresholds have at least one qualifying day at Chichester Dam.

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

81 years with a qualifying day

Days per year at Chichester Dam with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 63 in 1963.

Days with 10 mm (0.39 in) or more of precipitation per year at Chichester Dam
Year	Days	Decade average
1942	36	34.6
1943	38	34.6
1944	26	34.6
1945	36	34.6
1946	26	34.6
1948	33	34.6
1949	47	34.6
1950	53	41.6
1951	28	41.6
1954	41	41.6
1955	50	41.6
1956	41	41.6
1957	26	41.6
1958	37	41.6
1959	57	41.6
1961	42	37.7
1962	46	37.7
1963	63	37.7
1964	25	37.7
1965	25	37.7
1966	24	37.7
1967	46	37.7
1968	29	37.7
1969	39	37.7
1970	33	36.4
1971	40	36.4
1972	39	36.4
1973	29	36.4
1974	34	36.4
1975	39	36.4
1976	45	36.4
1977	34	36.4
1978	47	36.4
1979	24	36.4
1980	16	36.8
1981	40	36.8
1982	34	36.8
1983	32	36.8
1984	46	36.8
1985	49	36.8
1986	27	36.8
1987	37	36.8
1988	43	36.8
1989	44	36.8
1990	49	38.8
1991	25	38.8
1992	39	38.8
1993	31	38.8
1994	28	38.8
1995	38	38.8
1996	40	38.8
1997	35	38.8
1998	50	38.8
1999	53	38.8
2000	35	36.5
2001	43	36.5
2002	24	36.5
2003	36	36.5
2004	31	36.5
2005	34	36.5
2006	29	36.5
2007	44	36.5
2008	47	36.5
2009	42	36.5
2010	39	33.4
2011	48	33.4
2012	34	33.4
2013	31	33.4
2014	25	33.4
2015	42	33.4
2016	35	33.4
2017	31	33.4
2018	30	33.4
2019	19	33.4
2020	42	39.7
2021	56	39.7
2022	52	39.7
2023	28	39.7
2024	40	39.7
2025	46	39.7
2026	14	39.7

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

First to last qualifying date each year at Chichester Dam
Year	First date	Last date
1942	1942-01-17	1942-12-27
1943	1943-01-04	1943-12-29
1944	1944-01-01	1944-12-01
1945	1945-01-15	1945-12-28
1946	1946-01-07	1946-12-06
1948	1948-01-01	1948-12-31
1949	1949-01-01	1949-12-21
1950	1950-01-02	1950-12-25
1951	1951-01-01	1951-12-21
1954	1954-01-01	1954-12-30
1955	1955-01-21	1955-12-29
1956	1956-01-21	1956-12-22
1957	1957-01-05	1957-12-31
1958	1958-01-01	1958-12-29
1959	1959-01-03	1959-11-14
1961	1961-01-03	1961-12-28
1962	1962-01-01	1962-12-27
1963	1963-01-03	1963-12-28
1964	1964-01-14	1964-11-20
1965	1965-01-25	1965-12-15
1966	1966-01-18	1966-12-31
1967	1967-01-05	1967-12-30
1968	1968-01-05	1968-12-06
1969	1969-02-09	1969-12-13
1970	1970-01-12	1970-12-29
1971	1971-01-17	1971-12-18
1972	1972-01-07	1972-12-08
1973	1973-01-27	1973-12-28
1974	1974-01-07	1974-12-24
1975	1975-01-04	1975-12-24
1976	1976-01-10	1976-12-25
1977	1977-01-12	1977-09-20
1978	1978-01-03	1978-12-29
1979	1979-01-18	1979-12-09
1980	1980-01-05	1980-12-30
1981	1981-01-13	1981-12-26
1982	1982-01-14	1982-12-19
1983	1983-01-01	1983-12-28
1984	1984-01-02	1984-12-26
1985	1985-01-18	1985-12-05
1986	1986-01-03	1986-12-17
1987	1987-01-02	1987-12-30
1988	1988-01-03	1988-12-27
1989	1989-01-06	1989-12-14
1990	1990-01-08	1990-12-21
1991	1991-01-06	1991-12-31
1992	1992-01-05	1992-12-26
1993	1993-01-05	1993-12-08
1994	1994-01-15	1994-12-27
1995	1995-01-03	1995-12-28
1996	1996-01-01	1996-12-31
1997	1997-01-25	1997-12-28
1998	1998-01-06	1998-12-16
1999	1999-01-02	1999-12-30
2000	2000-01-05	2000-12-15
2001	2001-01-28	2001-12-15
2002	2002-01-16	2002-12-26
2003	2003-02-11	2003-12-28
2004	2004-01-14	2004-12-25
2005	2005-01-17	2005-12-01
2006	2006-01-07	2006-12-17
2007	2007-01-25	2007-12-26
2008	2008-01-05	2008-12-13
2009	2009-01-09	2009-12-31
2010	2010-01-03	2010-12-28
2011	2011-01-03	2011-12-25
2012	2012-01-23	2012-12-27
2013	2013-01-14	2013-11-30
2014	2014-02-17	2014-12-29
2015	2015-01-02	2015-12-24
2016	2016-01-05	2016-12-16
2017	2017-01-02	2017-12-27
2018	2018-01-03	2018-12-16
2019	2019-01-01	2019-11-04
2020	2020-01-09	2020-12-31
2021	2021-01-01	2021-12-28
2022	2022-01-05	2022-12-13
2023	2023-01-05	2023-12-22
2024	2024-01-16	2024-12-19
2025	2025-01-08	2025-12-12
2026	2026-01-12	2026-07-07

Every Fixed Threshold

Fixed thresholds at Chichester Dam
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	81	63	1963	14
25 mm (0.98 in): Days with 25 mm or more rain	81	25	1963	4
50 mm (1.97 in): Days with 50 mm or more rain	78	10	2025	1
100 mm (3.94 in): Days with 100 mm or more rain	37	5	1955	2
200 mm (7.87 in): Days with 200 mm or more rain	5	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 1942.

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Data for Chichester Dam 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).

Chichester Dam Threshold Days by Year (ASN00061151)

Key Facts for Chichester Dam Thresholds

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

Every Fixed Threshold

Download the Data

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