Cowaramup Threshold Days by Year

4 fixed thresholds counted per year at Cowaramup (ASN00009636): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cowaramup Thresholds

Cowaramup: days with 10 mm (0.39 in) or more of precipitation in 81 years, most in 1963 with 52.
Cowaramup: days with 25 mm (0.98 in) or more of precipitation in 81 years, most in 1974 with 17.
Cowaramup: days with 50 mm (1.97 in) or more of precipitation in 51 years, most in 1956 with 5.
Cowaramup: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1965 with 1.
4 fixed thresholds have at least one qualifying day at Cowaramup.

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

81 years with a qualifying day

Days per year at Cowaramup with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 52 in 1963.

Days with 10 mm (0.39 in) or more of precipitation per year at Cowaramup
Year	Days	Decade average
1941	38	41.2
1942	45	41.2
1943	36	41.2
1944	27	41.2
1945	46	41.2
1946	41	41.2
1947	49	41.2
1948	38	41.2
1949	51	41.2
1950	40	39.5
1951	39	39.5
1952	36	39.5
1953	31	39.5
1954	39	39.5
1955	49	39.5
1956	48	39.5
1957	44	39.5
1958	38	39.5
1959	31	39.5
1960	41	41.1
1961	49	41.1
1962	42	41.1
1963	52	41.1
1964	45	41.1
1965	44	41.1
1966	36	41.1
1968	34	41.1
1969	27	41.1
1970	42	36.8
1971	24	36.8
1972	32	36.8
1973	47	36.8
1974	46	36.8
1975	32	36.8
1976	31	36.8
1977	34	36.8
1978	44	36.8
1979	36	36.8
1980	39	36.5
1981	36	36.5
1982	36	36.5
1983	43	36.5
1984	36	36.5
1985	29	36.5
1986	33	36.5
1987	31	36.5
1988	45	36.5
1989	37	36.5
1990	37	35.9
1991	32	35.9
1992	44	35.9
1993	29	35.9
1994	27	35.9
1995	37	35.9
1996	43	35.9
1997	27	35.9
1998	39	35.9
1999	44	35.9
2000	41	33.8
2001	24	33.8
2002	27	33.8
2003	32	33.8
2004	29	33.8
2005	34	33.8
2007	35	33.8
2008	35	33.8
2009	47	33.8
2010	21	31.3
2011	36	31.3
2013	38	31.3
2015	28	31.3
2016	37	31.3
2017	33	31.3
2018	30	31.3
2019	27	31.3
2020	34	31.7
2021	35	31.7
2022	32	31.7
2023	25	31.7
2024	26	31.7
2025	38	31.7

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

First to last qualifying date each year at Cowaramup
Year	First date	Last date
1941	1941-03-16	1941-11-16
1942	1942-02-28	1942-10-27
1943	1943-03-08	1943-09-19
1944	1944-04-29	1944-12-18
1945	1945-03-28	1945-12-25
1946	1946-04-17	1946-12-23
1947	1947-04-03	1947-11-02
1948	1948-03-29	1948-12-23
1949	1949-03-12	1949-11-18
1950	1950-01-05	1950-12-07
1951	1951-02-14	1951-11-30
1952	1952-01-24	1952-12-27
1953	1953-02-02	1953-11-16
1954	1954-01-14	1954-11-11
1955	1955-04-11	1955-12-09
1956	1956-03-05	1956-12-05
1957	1957-03-18	1957-10-20
1958	1958-02-13	1958-10-14
1959	1959-04-12	1959-12-31
1960	1960-01-01	1960-10-15
1961	1961-02-18	1961-12-15
1962	1962-04-21	1962-12-31
1963	1963-01-01	1963-11-27
1964	1964-04-11	1964-12-19
1965	1965-03-01	1965-12-20
1966	1966-04-20	1966-11-29
1968	1968-01-06	1968-10-15
1969	1969-03-10	1969-11-03
1970	1970-02-05	1970-11-03
1971	1971-01-07	1971-11-15
1972	1972-04-07	1972-10-28
1973	1973-02-05	1973-10-28
1974	1974-01-27	1974-10-29
1975	1975-03-09	1975-11-16
1976	1976-01-06	1976-11-12
1977	1977-01-18	1977-11-25
1978	1978-02-18	1978-12-22
1979	1979-02-26	1979-11-21
1980	1980-02-11	1980-12-30
1981	1981-03-06	1981-12-01
1982	1982-01-03	1982-10-23
1983	1983-02-05	1983-12-31
1984	1984-04-30	1984-11-17
1985	1985-04-09	1985-11-22
1986	1986-03-10	1986-10-17
1987	1987-03-16	1987-11-29
1988	1988-03-25	1988-11-11
1989	1989-01-14	1989-10-29
1990	1990-01-21	1990-10-29
1991	1991-04-09	1991-11-13
1992	1992-03-17	1992-12-01
1993	1993-04-03	1993-10-02
1994	1994-05-21	1994-10-14
1995	1995-03-24	1995-12-25
1996	1996-05-08	1996-12-12
1997	1997-02-25	1997-11-21
1998	1998-01-16	1998-12-01
1999	1999-03-08	1999-10-14
2000	2000-01-15	2000-11-08
2001	2001-05-04	2001-12-04
2002	2002-01-17	2002-11-01
2003	2003-02-17	2003-11-18
2004	2004-05-07	2004-11-09
2005	2005-03-10	2005-11-27
2007	2007-01-03	2007-11-30
2008	2008-03-08	2008-12-20
2009	2009-02-25	2009-11-18
2010	2010-04-12	2010-11-10
2011	2011-01-06	2011-12-16
2013	2013-04-12	2013-11-30
2015	2015-03-15	2015-10-31
2016	2016-01-19	2016-12-12
2017	2017-03-22	2017-12-19
2018	2018-03-14	2018-12-06
2019	2019-01-23	2019-11-01
2020	2020-02-26	2020-11-14
2021	2021-02-07	2021-10-01
2022	2022-02-07	2022-10-04
2023	2023-04-11	2023-10-02
2024	2024-05-02	2024-10-03
2025	2025-04-04	2025-11-05

Every Fixed Threshold

Fixed thresholds at Cowaramup
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	52	1963	38
25 mm (0.98 in): Days with 25 mm or more rain	81	17	1974	12
50 mm (1.97 in): Days with 50 mm or more rain	51	5	1956	3
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1965	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1941.

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Data for Cowaramup 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).

Cowaramup Threshold Days by Year

Key Facts for Cowaramup Thresholds

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

Every Fixed Threshold

Download the Data

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