Coloma Threshold Days by Year (USC00231773)

6 fixed thresholds counted per year at Coloma (USC00231773): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Coloma Thresholds

Coloma: days with 10 mm (0.39 in) or more of precipitation in 73 years, most in 1973 with 43.
Coloma: days with 25 mm (0.98 in) or more of precipitation in 73 years, most in 2019 with 21.
Coloma: days with 50 mm (1.97 in) or more of precipitation in 63 years, most in 1981 with 6.
Coloma: days with 10 cm (3.9 in) or more of snowfall in 46 years, most in 1978 with 4.
6 fixed thresholds have at least one qualifying day at Coloma.

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

73 years with a qualifying day

Days per year at Coloma with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 43 in 1973.

Days with 10 mm (0.39 in) or more of precipitation per year at Coloma
Year	Days	Decade average
1950	19	24.1
1952	26	24.1
1953	17	24.1
1954	29	24.1
1955	25	24.1
1956	17	24.1
1957	31	24.1
1959	29	24.1
1960	29	30.5
1961	42	30.5
1962	24	30.5
1963	17	30.5
1966	24	30.5
1967	39	30.5
1968	30	30.5
1969	39	30.5
1970	33	31.4
1971	28	31.4
1972	35	31.4
1973	43	31.4
1974	34	31.4
1975	27	31.4
1976	25	31.4
1977	31	31.4
1978	30	31.4
1979	28	31.4
1980	25	30.4
1981	34	30.4
1982	39	30.4
1983	30	30.4
1984	31	30.4
1985	38	30.4
1986	32	30.4
1987	35	30.4
1988	17	30.4
1989	23	30.4
1990	34	33.8
1991	26	33.8
1992	37	33.8
1993	43	33.8
1994	27	33.8
1995	36	33.8
1996	26	33.8
1997	36	33.8
1998	40	33.8
1999	33	33.8
2000	32	31.6
2001	35	31.6
2002	25	31.6
2003	28	31.6
2004	37	31.6
2005	27	31.6
2006	27	31.6
2007	32	31.6
2008	37	31.6
2009	36	31.6
2010	33	30.9
2011	39	30.9
2012	26	30.9
2013	28	30.9
2014	28	30.9
2015	41	30.9
2016	27	30.9
2017	25	30.9
2018	24	30.9
2019	38	30.9
2020	39	33
2021	34	33
2022	29	33
2023	28	33
2024	41	33
2025	31	33
2026	29	33

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

First to last qualifying date each year at Coloma
Year	First date	Last date
1950	1950-01-02	1950-08-30
1952	1952-03-02	1952-11-26
1953	1953-02-20	1953-12-03
1954	1954-02-16	1954-12-30
1955	1955-01-04	1955-10-28
1956	1956-02-08	1956-11-21
1957	1957-01-22	1957-12-31
1959	1959-02-10	1959-12-28
1960	1960-01-15	1960-12-11
1961	1961-02-18	1961-12-23
1962	1962-01-06	1962-11-16
1963	1963-03-05	1963-11-22
1966	1966-02-09	1966-12-27
1967	1967-01-25	1967-12-10
1968	1968-03-19	1968-12-27
1969	1969-01-16	1969-10-31
1970	1970-04-01	1970-12-16
1971	1971-01-03	1971-12-30
1972	1972-03-13	1972-12-30
1973	1973-01-03	1973-12-04
1974	1974-01-20	1974-12-31
1975	1975-01-31	1975-12-15
1976	1976-02-16	1976-10-30
1977	1977-03-12	1977-11-09
1978	1978-02-13	1978-11-26
1979	1979-01-19	1979-11-21
1980	1980-01-16	1980-12-08
1981	1981-02-23	1981-12-01
1982	1982-01-04	1982-12-28
1983	1983-03-05	1983-12-11
1984	1984-03-19	1984-12-30
1985	1985-01-01	1985-12-11
1986	1986-04-03	1986-12-08
1987	1987-02-28	1987-12-20
1988	1988-01-31	1988-12-27
1989	1989-01-26	1989-10-30
1990	1990-01-17	1990-12-29
1991	1991-01-16	1991-12-23
1992	1992-02-18	1992-12-15
1993	1993-01-03	1993-12-14
1994	1994-02-20	1994-12-07
1995	1995-01-27	1995-11-02
1996	1996-01-18	1996-11-30
1997	1997-01-28	1997-12-25
1998	1998-01-07	1998-12-07
1999	1999-01-31	1999-12-09
2000	2000-02-18	2000-11-09
2001	2001-01-14	2001-12-13
2002	2002-01-30	2002-10-19
2003	2003-02-15	2003-12-10
2004	2004-02-06	2004-11-27
2005	2005-01-03	2005-10-20
2006	2006-01-29	2006-12-21
2007	2007-02-13	2007-12-23
2008	2008-02-06	2008-11-06
2009	2009-03-08	2009-12-25
2010	2010-01-07	2010-12-31
2011	2011-01-20	2011-12-20
2012	2012-02-04	2012-12-20
2013	2013-01-30	2013-12-22
2014	2014-02-01	2014-12-15
2015	2015-02-01	2015-12-29
2016	2016-01-08	2016-10-07
2017	2017-01-16	2017-10-22
2018	2018-01-11	2018-12-27
2019	2019-01-01	2019-12-29
2020	2020-01-11	2020-12-30
2021	2021-01-02	2021-12-29
2022	2022-01-16	2022-12-14
2023	2023-01-19	2023-12-25
2024	2024-01-09	2024-12-31
2025	2025-01-06	2025-11-30
2026	2026-01-09	2026-10-14

Every Fixed Threshold

Fixed thresholds at Coloma
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	73	43	1973	29
25 mm (0.98 in): Days with 25 mm or more rain	73	21	2019	10
50 mm (1.97 in): Days with 50 mm or more rain	63	6	1981	4
100 mm (3.94 in): Days with 100 mm or more rain	13	2	1998	1
10 cm (3.9 in): Days with 10 cm or more snowfall	46	4	1978	1
25 cm (9.8 in): Days with 25 cm or more snowfall	4	1	1967	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.

Download the Data

Data for Coloma 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Coloma Threshold Days by Year (USC00231773)

Key Facts for Coloma Thresholds

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

Every Fixed Threshold

Download the Data

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