Mount Cotton West Threshold Days by Year

5 fixed thresholds counted per year at Mount Cotton West (ASN00040141): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mount Cotton West Thresholds

Mount Cotton West: days with 10 mm (0.39 in) or more of precipitation in 107 years, most in 2022 with 53.
Mount Cotton West: days with 25 mm (0.98 in) or more of precipitation in 107 years, most in 1967 with 28.
Mount Cotton West: days with 50 mm (1.97 in) or more of precipitation in 105 years, most in 1954 with 12.
Mount Cotton West: days with 100 mm (3.94 in) or more of precipitation in 68 years, most in 1931 with 6.
5 fixed thresholds have at least one qualifying day at Mount Cotton West.

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

107 years with a qualifying day

Days per year at Mount Cotton West with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 53 in 2022.

Days with 10 mm (0.39 in) or more of precipitation per year at Mount Cotton West
Year	Days	Decade average
1917	29	25.7
1918	26	25.7
1919	22	25.7
1920	36	39.3
1921	45	39.3
1922	33	39.3
1923	30	39.3
1924	36	39.3
1925	50	39.3
1926	31	39.3
1927	46	39.3
1928	49	39.3
1929	37	39.3
1930	45	39.6
1931	39	39.6
1932	28	39.6
1933	50	39.6
1934	52	39.6
1935	39	39.6
1936	31	39.6
1937	39	39.6
1938	37	39.6
1939	36	39.6
1940	27	34.8
1941	27	34.8
1942	40	34.8
1943	37	34.8
1944	38	34.8
1945	41	34.8
1946	30	34.8
1947	42	34.8
1948	34	34.8
1949	32	34.8
1950	51	36.6
1951	23	36.6
1952	31	36.6
1953	35	36.6
1954	40	36.6
1955	45	36.6
1956	41	36.6
1957	22	36.6
1958	41	36.6
1959	37	36.6
1960	22	36.1
1961	40	36.1
1962	51	36.1
1963	41	36.1
1964	36	36.1
1965	28	36.1
1966	31	36.1
1967	51	36.1
1968	29	36.1
1969	32	36.1
1970	51	37.3
1971	36	37.3
1972	35	37.3
1973	40	37.3
1974	46	37.3
1975	29	37.3
1976	43	37.3
1977	20	37.3
1978	40	37.3
1979	33	37.3
1980	29	34.9
1981	39	34.9
1982	36	34.9
1983	44	34.9
1984	34	34.9
1985	40	34.9
1986	21	34.9
1987	32	34.9
1988	36	34.9
1989	38	34.9
1990	38	32.3
1991	26	32.3
1992	39	32.3
1993	23	32.3
1994	26	32.3
1995	27	32.3
1996	33	32.3
1997	34	32.3
1998	34	32.3
1999	43	32.3
2000	19	31
2001	27	31
2002	27	31
2003	39	31
2004	30	31
2005	32	31
2006	30	31
2007	29	31
2008	39	31
2009	38	31
2011	46	27.3
2014	15	27.3
2015	37	27.3
2016	21	27.3
2017	20	27.3
2018	31	27.3
2019	21	27.3
2020	33	39.3
2021	38	39.3
2022	53	39.3
2023	25	39.3
2024	52	39.3
2025	45	39.3
2026	29	39.3

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

First to last qualifying date each year at Mount Cotton West
Year	First date	Last date
1917	1917-01-15	1917-12-22
1918	1918-01-05	1918-12-18
1919	1919-03-01	1919-12-31
1920	1920-01-01	1920-12-14
1921	1921-01-05	1921-12-31
1922	1922-01-02	1922-12-18
1923	1923-01-06	1923-12-25
1924	1924-01-07	1924-12-30
1925	1925-01-02	1925-12-31
1926	1926-01-04	1926-12-28
1927	1927-01-09	1927-12-26
1928	1928-01-09	1928-12-24
1929	1929-01-12	1929-12-30
1930	1930-01-22	1930-12-18
1931	1931-02-01	1931-12-23
1932	1932-02-03	1932-12-21
1933	1933-01-06	1933-12-30
1934	1934-01-04	1934-12-28
1935	1935-01-04	1935-12-10
1936	1936-01-09	1936-12-25
1937	1937-01-03	1937-12-16
1938	1938-01-16	1938-11-29
1939	1939-01-03	1939-12-28
1940	1940-01-06	1940-12-22
1941	1941-01-14	1941-12-30
1942	1942-01-17	1942-12-31
1943	1943-01-01	1943-12-31
1944	1944-01-01	1944-12-21
1945	1945-01-13	1945-12-28
1946	1946-01-21	1946-12-05
1947	1947-01-23	1947-12-26
1948	1948-01-13	1948-12-31
1949	1949-01-09	1949-12-17
1950	1950-01-16	1950-12-19
1951	1951-01-01	1951-12-20
1952	1952-01-09	1952-12-29
1953	1953-01-06	1953-12-28
1954	1954-01-15	1954-12-18
1955	1955-01-08	1955-12-27
1956	1956-01-14	1956-12-22
1957	1957-01-08	1957-12-17
1958	1958-02-01	1958-12-30
1959	1959-01-04	1959-12-23
1960	1960-01-22	1960-12-13
1961	1961-01-04	1961-12-20
1962	1962-01-05	1962-12-31
1963	1963-01-01	1963-12-14
1964	1964-01-03	1964-12-30
1965	1965-01-24	1965-12-16
1966	1966-02-05	1966-12-30
1967	1967-01-01	1967-12-10
1968	1968-01-06	1968-12-05
1969	1969-02-12	1969-12-24
1970	1970-01-02	1970-12-30
1971	1971-01-18	1971-12-28
1972	1972-01-13	1972-12-28
1973	1973-01-08	1973-12-21
1974	1974-01-01	1974-12-30
1975	1975-01-04	1975-12-24
1976	1976-01-03	1976-12-25
1977	1977-01-03	1977-12-23
1978	1978-01-27	1978-12-28
1979	1979-01-19	1979-12-12
1980	1980-01-08	1980-12-31
1981	1981-01-01	1981-12-30
1982	1982-01-15	1982-12-20
1983	1983-01-01	1983-12-30
1984	1984-01-05	1984-12-31
1985	1985-01-01	1985-12-09
1986	1986-01-25	1986-12-19
1987	1987-01-04	1987-12-11
1988	1988-01-16	1988-12-26
1989	1989-01-28	1989-12-25
1990	1990-01-16	1990-12-30
1991	1991-01-02	1991-12-31
1992	1992-01-01	1992-12-28
1993	1993-01-08	1993-12-09
1994	1994-01-12	1994-12-04
1995	1995-01-04	1995-12-24
1996	1996-01-02	1996-12-19
1997	1997-01-02	1997-12-27
1998	1998-01-29	1998-12-25
1999	1999-01-02	1999-12-28
2000	2000-01-18	2000-12-29
2001	2001-01-18	2001-12-31
2002	2002-01-17	2002-12-28
2003	2003-02-02	2003-12-15
2004	2004-01-05	2004-12-28
2005	2005-01-07	2005-12-09
2006	2006-01-07	2006-12-27
2007	2007-01-26	2007-12-31
2008	2008-01-01	2008-12-28
2009	2009-01-03	2009-12-30
2011	2011-01-02	2011-12-28
2014	2014-01-06	2014-12-28
2015	2015-01-03	2015-12-28
2016	2016-01-05	2016-12-27
2017	2017-01-03	2017-12-26
2018	2018-01-03	2018-12-18
2019	2019-01-04	2019-12-26
2020	2020-01-12	2020-12-31
2021	2021-01-19	2021-12-28
2022	2022-01-03	2022-12-31
2023	2023-01-06	2023-12-27
2024	2024-01-01	2024-12-19
2025	2025-01-01	2025-12-08
2026	2026-01-13	2026-08-17

Every Fixed Threshold

Fixed thresholds at Mount Cotton West
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	107	53	2022	29
25 mm (0.98 in): Days with 25 mm or more rain	107	28	1967	9
50 mm (1.97 in): Days with 50 mm or more rain	105	12	1954	2
100 mm (3.94 in): Days with 100 mm or more rain	68	6	1931	4
200 mm (7.87 in): Days with 200 mm or more rain	14	2	1931	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1917.

Download the Data

Data for Mount Cotton West 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Mount Cotton West Threshold Days by Year

Key Facts for Mount Cotton West Thresholds

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

Every Fixed Threshold

Download the Data

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