Roseville Threshold Days by Year

7 fixed thresholds counted per year at Roseville (USC00337255): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Roseville Thresholds

Roseville: days with 10 mm (0.39 in) or more of precipitation in 62 years, most in 1990 with 57.
Roseville: days with 25 mm (0.98 in) or more of precipitation in 62 years, most in 2018 with 17.
Roseville: days with 50 mm (1.97 in) or more of precipitation in 38 years, most in 2004 with 5.
Roseville: days with 10 cm (3.9 in) or more of snowfall in 23 years, most in 1979 with 4.
7 fixed thresholds have at least one qualifying day at Roseville.

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

62 years with a qualifying day

Days per year at Roseville with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 57 in 1990.

Days with 10 mm (0.39 in) or more of precipitation per year at Roseville
Year	Days	Decade average
1962	23	28.6
1963	27	28.6
1964	28	28.6
1965	31	28.6
1966	33	28.6
1967	26	28.6
1968	34	28.6
1969	27	28.6
1970	28	35.2
1971	24	35.2
1972	35	35.2
1973	38	35.2
1974	40	35.2
1975	45	35.2
1976	31	35.2
1977	27	35.2
1978	42	35.2
1979	42	35.2
1980	35	32.7
1981	33	32.7
1982	31	32.7
1983	39	32.7
1984	27	32.7
1985	31	32.7
1986	31	32.7
1987	27	32.7
1988	26	32.7
1989	47	32.7
1990	57	39.2
1991	26	39.2
1992	33	39.2
1993	38	39.2
1994	40	39.2
1995	37	39.2
1996	47	39.2
1997	43	39.2
1998	41	39.2
1999	30	39.2
2000	33	36.3
2001	29	36.3
2002	41	36.3
2003	40	36.3
2004	39	36.3
2005	33	36.3
2006	37	36.3
2007	36	36.3
2008	42	36.3
2009	33	36.3
2010	27	38
2011	52	38
2012	30	38
2013	40	38
2014	32	38
2015	39	38
2016	34	38
2017	36	38
2018	43	38
2019	47	38
2020	42	43.8
2021	47	43.8
2022	44	43.8
2023	42	43.8

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

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

Every Fixed Threshold

Fixed thresholds at Roseville
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	62	57	1990	42
25 mm (0.98 in): Days with 25 mm or more rain	62	17	2018	12
50 mm (1.97 in): Days with 50 mm or more rain	38	5	2004	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	2004	1
10 cm (3.9 in): Days with 10 cm or more snowfall	23	4	1979	1
25 cm (9.8 in): Days with 25 cm or more snowfall	4	1	1966	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1968	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1962.

Download the Data

Data for Roseville 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).

Roseville Threshold Days by Year

Key Facts for Roseville Thresholds

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

Every Fixed Threshold

Download the Data

Related