Richmond Threshold Days by Year (USC00417594)

6 fixed thresholds counted per year at Richmond (USC00417594): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Richmond Thresholds

Richmond: days with 10 mm (0.39 in) or more of precipitation in 69 years, most in 1997 with 47.
Richmond: days with 25 mm (0.98 in) or more of precipitation in 69 years, most in 1992 with 24.
Richmond: days with 50 mm (1.97 in) or more of precipitation in 69 years, most in 2002 with 10.
Richmond: days with 100 mm (3.94 in) or more of precipitation in 29 years, most in 2017 with 4.
6 fixed thresholds have at least one qualifying day at Richmond.

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

69 years with a qualifying day

Days per year at Richmond with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 47 in 1997.

Days with 10 mm (0.39 in) or more of precipitation per year at Richmond
Year	Days	Decade average
1947	34	30.7
1948	23	30.7
1949	35	30.7
1950	21	28.4
1951	31	28.4
1952	32	28.4
1953	34	28.4
1954	20	28.4
1955	28	28.4
1956	20	28.4
1957	32	28.4
1958	32	28.4
1959	34	28.4
1960	32	31.7
1961	29	31.7
1962	30	31.7
1963	25	31.7
1964	29	31.7
1965	32	31.7
1966	34	31.7
1967	27	31.7
1968	44	31.7
1969	35	31.7
1970	34	32.2
1971	27	32.2
1972	27	32.2
1974	37	32.2
1975	28	32.2
1976	38	32.2
1977	31	32.2
1978	29	32.2
1979	39	32.2
1980	25	30.6
1981	40	30.6
1982	33	30.6
1983	33	30.6
1984	29	30.6
1985	33	30.6
1986	37	30.6
1987	31	30.6
1988	19	30.6
1989	26	30.6
1990	28	35.9
1991	39	35.9
1992	45	35.9
1993	43	35.9
1994	35	35.9
1995	37	35.9
1996	34	35.9
1997	47	35.9
1998	29	35.9
1999	22	35.9
2000	34	36.4
2001	44	36.4
2002	43	36.4
2003	26	36.4
2004	43	36.4
2006	32	36.4
2007	44	36.4
2008	30	36.4
2009	32	36.4
2010	38	34.3
2014	28	34.3
2015	39	34.3
2016	35	34.3
2017	40	34.3
2018	30	34.3
2019	30	34.3
2025	13	13

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

First to last qualifying date each year at Richmond
Year	First date	Last date
1947	1947-01-01	1947-12-14
1948	1948-01-14	1948-12-29
1949	1949-01-02	1949-12-27
1950	1950-01-01	1950-12-21
1951	1951-01-01	1951-12-04
1952	1952-01-28	1952-12-30
1953	1953-02-01	1953-12-28
1954	1954-01-10	1954-12-27
1955	1955-01-02	1955-12-02
1956	1956-01-18	1956-12-22
1957	1957-02-18	1957-12-28
1958	1958-01-06	1958-12-31
1959	1959-01-30	1959-12-16
1960	1960-01-01	1960-12-31
1961	1961-01-07	1961-12-18
1962	1962-03-15	1962-12-29
1963	1963-01-05	1963-12-21
1964	1964-01-16	1964-12-11
1965	1965-01-03	1965-12-19
1966	1966-01-05	1966-12-09
1967	1967-01-10	1967-12-15
1968	1968-01-09	1968-12-13
1969	1969-01-03	1969-12-30
1970	1970-01-06	1970-12-31
1971	1971-02-07	1971-12-17
1972	1972-01-20	1972-12-15
1974	1974-01-03	1974-12-26
1975	1975-01-08	1975-12-25
1976	1976-01-25	1976-12-25
1977	1977-01-03	1977-12-14
1978	1978-01-08	1978-12-30
1979	1979-01-06	1979-12-29
1980	1980-01-21	1980-12-09
1981	1981-01-20	1981-12-31
1982	1982-01-13	1982-12-26
1983	1983-01-01	1983-12-16
1984	1984-01-09	1984-12-16
1985	1985-01-01	1985-11-25
1986	1986-02-04	1986-12-23
1987	1987-01-16	1987-12-22
1988	1988-01-07	1988-12-09
1989	1989-01-19	1989-12-29
1990	1990-01-04	1990-12-27
1991	1991-01-02	1991-12-27
1992	1992-01-05	1992-12-15
1993	1993-01-04	1993-12-20
1994	1994-01-28	1994-12-29
1995	1995-01-13	1995-12-18
1996	1996-01-06	1996-12-16
1997	1997-01-11	1997-12-23
1998	1998-01-07	1998-12-12
1999	1999-01-02	1999-11-21
2000	2000-01-08	2000-12-27
2001	2001-01-11	2001-12-16
2002	2002-01-06	2002-12-31
2003	2003-01-13	2003-12-13
2004	2004-01-13	2004-11-24
2006	2006-01-23	2006-12-24
2007	2007-01-04	2007-12-20
2008	2008-01-16	2008-11-12
2009	2009-02-14	2009-12-30
2010	2010-01-07	2010-12-30
2014	2014-01-10	2014-12-29
2015	2015-01-03	2015-12-16
2016	2016-01-07	2016-12-05
2017	2017-01-18	2017-12-17
2018	2018-01-08	2018-12-27
2019	2019-01-03	2019-11-08
2025	2025-01-10	2025-07-09

Every Fixed Threshold

Fixed thresholds at Richmond
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	69	47	1997	13
25 mm (0.98 in): Days with 25 mm or more rain	69	24	1992	7
50 mm (1.97 in): Days with 50 mm or more rain	69	10	2002	1
100 mm (3.94 in): Days with 100 mm or more rain	29	4	2017	2
200 mm (7.87 in): Days with 200 mm or more rain	3	1	1985	1
10 cm (3.9 in): Days with 10 cm or more snowfall	1	1	1960	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1947.

Download the Data

Data for Richmond 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Richmond Threshold Days by Year (USC00417594)

Key Facts for Richmond Thresholds

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

Every Fixed Threshold

Download the Data

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