Days with 10 mm (0.39 in) or more of precipitation in Washington, D.C.

Washington, D.C. has had days with 10 mm (0.39 in) or more of precipitation in 85 years, most in 2018 with 53. Days per year, season span, streaks and every date.

Key Facts for Washington, D.C.

Washington, D.C. has had days with 10 mm (0.39 in) or more of precipitation in 85 years, 2,862 days in all.
The most in one year was 53 days in 2018.
In 2026, the latest year on file, there were 25 such days.
The earliest first date in a year was 1 January 1945.
The latest last date in a year was 31 December 1952.
The longest run inside a single year was 7 days in 2018.
2 years with under 90 percent of days observed are left out of these rankings.

Days per Year

85 years, 2,862 days

Days per year in Washington, D.C. with 10 mm (0.39 in) or more of precipitation. The line is the decade average. The most was 53 in 2018. Grey bars are years with under 90 percent of days observed, left out of rankings.

Days with 10 mm (0.39 in) or more of precipitation per year in Washington, D.C.
Year	Days	Decade average
1942	36	33.5
1943	24	33.5
1944	30	33.5
1945	36	33.5
1946	29	33.5
1947	34	33.5
1948	46	33.5
1949	33	33.5
1950	42	33.6
1951	35	33.6
1952	39	33.6
1953	39	33.6
1954	21	33.6
1955	30	33.6
1956	29	33.6
1957	28	33.6
1958	38	33.6
1959	35	33.6
1960	30	29.8
1961	41	29.8
1962	31	29.8
1963	28	29.8
1964	27	29.8
1965	20	29.8
1966	28	29.8
1967	30	29.8
1968	34	29.8
1969	29	29.8
1970	28	33.7
1971	37	33.7
1972	40	33.7
1973	34	33.7
1974	24	33.7
1975	38	33.7
1976	29	33.7
1977	31	33.7
1978	36	33.7
1979	40	33.7
1980	24	33.7
1981	30	33.7
1982	33	33.7
1983	46	33.7
1984	38	33.7
1985	29	33.7
1986	32	33.7
1987	32	33.7
1988	29	33.7
1989	44	33.7
1990	36	34.2
1991	27	34.2
1992	34	34.2
1993	34	34.2
1994	37	34.2
1995	32	34.2
1996	44	34.2
1997	28	34.2
1998	35	34.2
1999	35	34.2
2000	38	34.9
2001	26	34.9
2002	29	34.9
2003	50	34.9
2004	29	34.9
2005	29	34.9
2006	38	34.9
2007	25	34.9
2008	38	34.9
2009	47	34.9
2010	27	35.2
2011	40	35.2
2012	24	35.2
2013	35	35.2
2014	33	35.2
2015	42	35.2
2016	32	35.2
2017	29	35.2
2018	53	35.2
2019	37	35.2
2020	46	34.7
2021	36	34.7
2022	39	34.7
2023	33	34.7
2024	32	34.7
2025	32	34.7
2026	25	34.7

Season Span

earliest 1 January, latest 31 December

For each year, a bar from the first to the last day in Washington, D.C. meeting 10 mm (0.39 in). Long bars mean a long season.

First to last qualifying date each year in Washington, D.C.
Year	First date	Last date
1942	1942-01-19	1942-12-29
1943	1943-01-28	1943-12-26
1944	1944-01-03	1944-12-27
1945	1945-01-01	1945-12-31
1946	1946-01-07	1946-12-21
1947	1947-01-01	1947-12-15
1948	1948-01-01	1948-12-30
1949	1949-01-05	1949-12-23
1950	1950-01-12	1950-12-07
1951	1951-01-14	1951-12-21
1952	1952-01-04	1952-12-31
1953	1953-01-08	1953-12-14
1954	1954-01-22	1954-12-29
1955	1955-02-06	1955-11-19
1956	1956-01-10	1956-12-23
1957	1957-01-23	1957-12-26
1958	1958-01-14	1958-12-29
1959	1959-01-01	1959-12-28
1960	1960-01-03	1960-12-29
1961	1961-01-01	1961-12-18
1962	1962-01-06	1962-12-29
1963	1963-01-12	1963-12-23
1964	1964-01-01	1964-12-27
1965	1965-01-10	1965-10-07
1966	1966-01-06	1966-12-28
1967	1967-01-27	1967-12-28
1968	1968-01-14	1968-12-22
1969	1969-01-21	1969-12-30
1970	1970-01-17	1970-12-31
1971	1971-01-01	1971-12-07
1972	1972-01-04	1972-12-22
1973	1973-01-27	1973-12-31
1974	1974-01-21	1974-12-16
1975	1975-01-13	1975-12-31
1976	1976-01-01	1976-12-07
1977	1977-01-14	1977-12-18
1978	1978-01-08	1978-12-24
1979	1979-01-02	1979-11-26
1980	1980-01-11	1980-11-24
1981	1981-02-02	1981-12-15
1982	1982-01-04	1982-12-16
1983	1983-01-10	1983-12-28
1984	1984-01-10	1984-12-05
1985	1985-01-03	1985-12-13
1986	1986-01-19	1986-12-24
1987	1987-01-01	1987-12-15
1988	1988-01-08	1988-12-24
1989	1989-01-06	1989-12-31
1990	1990-01-08	1990-12-28
1991	1991-01-07	1991-12-29
1992	1992-01-04	1992-12-28
1993	1993-01-05	1993-12-21
1994	1994-01-04	1994-12-31
1995	1995-01-06	1995-12-19
1996	1996-01-02	1996-12-13
1997	1997-01-09	1997-11-21
1998	1998-01-15	1998-12-13
1999	1999-01-03	1999-12-14
2000	2000-01-04	2000-12-17
2001	2001-01-19	2001-12-11
2002	2002-01-06	2002-12-25
2003	2003-01-01	2003-12-24
2004	2004-02-03	2004-12-23
2005	2005-01-14	2005-12-25
2006	2006-01-14	2006-12-25
2007	2007-01-01	2007-12-28
2008	2008-01-17	2008-12-16
2009	2009-01-06	2009-12-31
2010	2010-01-17	2010-12-12
2011	2011-01-26	2011-12-27
2012	2012-01-11	2012-12-26
2013	2013-01-15	2013-12-29
2014	2014-01-10	2014-12-24
2015	2015-01-03	2015-12-29
2016	2016-01-10	2016-12-24
2017	2017-01-03	2017-11-07
2018	2018-02-04	2018-12-31
2019	2019-01-13	2019-12-29
2020	2020-01-25	2020-12-24
2021	2021-01-01	2021-11-12
2022	2022-01-01	2022-12-22
2023	2023-01-25	2023-12-27
2024	2024-01-06	2024-12-28
2025	2025-01-06	2025-12-19
2026	2026-01-10	2026-10-11

Every Year

Days with 10 mm (0.39 in) or more of precipitation per year in Washington, D.C.
Year	Days	First date	Last date	Longest streak in year	Coverage
2026	25	10 January 2026	11 October 2026	3 days	Incomplete, not ranked
2025	32	6 January 2025	19 December 2025	2 days	Complete
2024	32	6 January 2024	28 December 2024	3 days	Complete
2023	33	25 January 2023	27 December 2023	2 days	Complete
2022	39	1 January 2022	22 December 2022	3 days	Complete
2021	36	1 January 2021	12 November 2021	2 days	Complete
2020	46	25 January 2020	24 December 2020	4 days	Complete
2019	37	13 January 2019	29 December 2019	4 days	Complete
2018	53	4 February 2018	31 December 2018	7 days	Complete
2017	29	3 January 2017	7 November 2017	2 days	Complete
2016	32	10 January 2016	24 December 2016	2 days	Complete
2015	42	3 January 2015	29 December 2015	2 days	Complete
2014	33	10 January 2014	24 December 2014	2 days	Complete
2013	35	15 January 2013	29 December 2013	2 days	Complete
2012	24	11 January 2012	26 December 2012	2 days	Complete
2011	40	26 January 2011	27 December 2011	5 days	Complete
2010	27	17 January 2010	12 December 2010	2 days	Complete
2009	47	6 January 2009	31 December 2009	3 days	Complete
2008	38	17 January 2008	16 December 2008	2 days	Complete
2007	25	1 January 2007	28 December 2007	4 days	Complete
2006	38	14 January 2006	25 December 2006	3 days	Complete
2005	29	14 January 2005	25 December 2005	2 days	Complete
2004	29	3 February 2004	23 December 2004	2 days	Complete
2003	50	1 January 2003	24 December 2003	3 days	Complete
2002	29	6 January 2002	25 December 2002	2 days	Complete
2001	26	19 January 2001	11 December 2001	2 days	Complete
2000	38	4 January 2000	17 December 2000	2 days	Complete
1999	35	3 January 1999	14 December 1999	3 days	Complete
1998	35	15 January 1998	13 December 1998	4 days	Complete
1997	28	9 January 1997	21 November 1997	3 days	Complete
1996	44	2 January 1996	13 December 1996	2 days	Complete
1995	32	6 January 1995	19 December 1995	2 days	Complete
1994	37	4 January 1994	31 December 1994	3 days	Complete
1993	34	5 January 1993	21 December 1993	2 days	Complete
1992	34	4 January 1992	28 December 1992	3 days	Complete
1991	27	7 January 1991	29 December 1991	3 days	Complete
1990	36	8 January 1990	28 December 1990	2 days	Complete
1989	44	6 January 1989	31 December 1989	4 days	Complete
1988	29	8 January 1988	24 December 1988	2 days	Complete
1987	32	1 January 1987	15 December 1987	2 days	Complete
1986	32	19 January 1986	24 December 1986	2 days	Complete
1985	29	3 January 1985	13 December 1985	3 days	Complete
1984	38	10 January 1984	5 December 1984	2 days	Complete
1983	46	10 January 1983	28 December 1983	3 days	Complete
1982	33	4 January 1982	16 December 1982	2 days	Complete
1981	30	2 February 1981	15 December 1981	2 days	Complete
1980	24	11 January 1980	24 November 1980	2 days	Complete
1979	40	2 January 1979	26 November 1979	2 days	Complete
1978	36	8 January 1978	24 December 1978	3 days	Complete
1977	31	14 January 1977	18 December 1977	2 days	Complete
1976	29	1 January 1976	7 December 1976	2 days	Complete
1975	38	13 January 1975	31 December 1975	5 days	Complete
1974	24	21 January 1974	16 December 1974	2 days	Complete
1973	34	27 January 1973	31 December 1973	3 days	Complete
1972	40	4 January 1972	22 December 1972	2 days	Complete
1971	37	1 January 1971	7 December 1971	3 days	Complete
1970	28	17 January 1970	31 December 1970	2 days	Complete
1969	29	21 January 1969	30 December 1969	2 days	Complete
1968	34	14 January 1968	22 December 1968	2 days	Complete
1967	30	27 January 1967	28 December 1967	2 days	Complete
1966	28	6 January 1966	28 December 1966	2 days	Complete
1965	20	10 January 1965	7 October 1965	2 days	Complete
1964	27	1 January 1964	27 December 1964	2 days	Complete
1963	28	12 January 1963	23 December 1963	2 days	Complete
1962	31	6 January 1962	29 December 1962	2 days	Complete
1961	41	1 January 1961	18 December 1961	2 days	Complete
1960	30	3 January 1960	29 December 1960	3 days	Complete
1959	35	1 January 1959	28 December 1959	3 days	Complete
1958	38	14 January 1958	29 December 1958	4 days	Complete
1957	28	23 January 1957	26 December 1957	2 days	Complete
1956	29	10 January 1956	23 December 1956	2 days	Complete
1955	30	6 February 1955	19 November 1955	3 days	Complete
1954	21	22 January 1954	29 December 1954	2 days	Complete
1953	39	8 January 1953	14 December 1953	3 days	Complete
1952	39	4 January 1952	31 December 1952	4 days	Complete
1951	35	14 January 1951	21 December 1951	3 days	Complete
1950	42	12 January 1950	7 December 1950	2 days	Complete
1949	33	5 January 1949	23 December 1949	3 days	Complete
1948	46	1 January 1948	30 December 1948	3 days	Complete
1947	34	1 January 1947	15 December 1947	2 days	Complete
1946	29	7 January 1946	21 December 1946	2 days	Complete
1945	36	1 January 1945	31 December 1945	2 days	Complete
1944	30	3 January 1944	27 December 1944	2 days	Complete
1943	24	28 January 1943	26 December 1943	2 days	Complete
1942	36	19 January 1942	29 December 1942	4 days	Complete

Decade averages for Days with 10 mm (0.39 in) or more of precipitation in Washington, D.C.
Decade	Average days per year	Years counted
1940s	33.5	8
1950s	33.6	10
1960s	29.8	10
1970s	33.7	10
1980s	33.7	10
1990s	34.2	10
2000s	34.9	10
2010s	35.2	10
2020s	36.3	6

Compare with your own threshold in the threshold explorer. Fahrenheit thresholds are converted to tenths of a degree Celsius once, rounding half up.

Download the Data

Data for Days with 10 mm (0.39 in) or more of precipitation in Washington, D.C., 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 from the threaded city record.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).