Days at or above 90 F (32.2 C) in Washington, D.C.

Washington, D.C. has had days with a maximum temperature at or above 90 F (32.2 C) in 85 years, most in 1980 with 67. Days per year, season span, streaks and every date.

Key Facts for Washington, D.C.

Washington, D.C. has had days with a maximum temperature at or above 90 F (32.2 C) in 85 years, 3,125 days in all.
The most in one year was 67 days in 1980.
In 2026, the latest year on file, there were 51 such days.
The earliest first date in a year was 6 April 1942.
The latest last date in a year was 9 October 2007.
The longest run inside a single year was 21 days in 1980.
2 years with under 90 percent of days observed are left out of these rankings.

Days per Year

85 years, 3,125 days

Days per year in Washington, D.C. with a maximum temperature at or above 90 F (32.2 C). The line is the decade average. The most was 67 in 1980. Grey bars are years with under 90 percent of days observed, left out of rankings.

Days at or above 90 F (32.2 C) per year in Washington, D.C.
Year	Days	Decade average
1942	25	27.1
1943	49	27.1
1944	36	27.1
1945	20	27.1
1946	18	27.1
1947	18	27.1
1948	25	27.1
1949	26	27.1
1950	13	31.7
1951	28	31.7
1952	35	31.7
1953	44	31.7
1954	32	31.7
1955	31	31.7
1956	23	31.7
1957	46	31.7
1958	23	31.7
1959	42	31.7
1960	23	36.7
1961	36	36.7
1962	21	36.7
1963	28	36.7
1964	49	36.7
1965	48	36.7
1966	59	36.7
1967	24	36.7
1968	40	36.7
1969	39	36.7
1970	55	34.5
1971	29	34.5
1972	16	34.5
1973	37	34.5
1974	32	34.5
1975	35	34.5
1976	36	34.5
1977	46	34.5
1978	39	34.5
1979	20	34.5
1980	67	39.5
1981	33	39.5
1982	22	39.5
1983	55	39.5
1984	23	39.5
1985	28	39.5
1986	41	39.5
1987	45	39.5
1988	59	39.5
1989	22	39.5
1990	30	40.5
1991	59	40.5
1992	21	40.5
1993	51	40.5
1994	46	40.5
1995	52	40.5
1996	21	40.5
1997	42	40.5
1998	35	40.5
1999	48	40.5
2000	12	29.1
2001	16	29.1
2002	56	29.1
2003	20	29.1
2004	11	29.1
2005	39	29.1
2006	36	29.1
2007	44	29.1
2008	35	29.1
2009	22	29.1
2010	67	48.9
2011	50	48.9
2012	53	48.9
2013	35	48.9
2014	24	48.9
2015	52	48.9
2016	58	48.9
2017	43	48.9
2018	45	48.9
2019	62	48.9
2020	46	42.7
2021	48	42.7
2022	38	42.7
2023	32	42.7
2024	48	42.7
2025	36	42.7
2026	51	42.7

Season Span

earliest 6 April, latest 9 October

For each year, a bar from the first to the last day in Washington, D.C. meeting 90 F (32.2 C). Long bars mean a long season.

First to last qualifying date each year in Washington, D.C.
Year	First date	Last date
1942	1942-04-06	1942-09-16
1943	1943-06-02	1943-09-06
1944	1944-05-16	1944-09-05
1945	1945-06-11	1945-09-29
1946	1946-06-08	1946-09-09
1947	1947-05-29	1947-09-14
1948	1948-05-11	1948-09-20
1949	1949-05-06	1949-08-27
1950	1950-05-06	1950-09-03
1951	1951-06-01	1951-10-05
1952	1952-06-06	1952-09-14
1953	1953-05-11	1953-09-05
1954	1954-06-12	1954-10-04
1955	1955-06-22	1955-08-22
1956	1956-05-13	1956-09-01
1957	1957-04-27	1957-09-13
1958	1958-06-09	1958-09-26
1959	1959-04-09	1959-10-05
1960	1960-04-14	1960-09-09
1961	1961-06-02	1961-09-25
1962	1962-05-15	1962-09-13
1963	1963-05-09	1963-09-12
1964	1964-05-08	1964-09-11
1965	1965-05-03	1965-09-22
1966	1966-05-06	1966-09-05
1967	1967-06-10	1967-10-05
1968	1968-06-16	1968-09-25
1969	1969-04-27	1969-09-07
1970	1970-05-09	1970-09-26
1971	1971-05-19	1971-09-10
1972	1972-07-03	1972-09-17
1973	1973-06-04	1973-09-29
1974	1974-04-29	1974-09-13
1975	1975-05-21	1975-08-30
1976	1976-04-16	1976-09-13
1977	1977-04-12	1977-09-19
1978	1978-06-02	1978-09-19
1979	1979-07-12	1979-08-31
1980	1980-05-13	1980-09-23
1981	1981-05-25	1981-09-14
1982	1982-05-12	1982-09-02
1983	1983-06-13	1983-09-20
1984	1984-05-22	1984-09-03
1985	1985-04-19	1985-09-10
1986	1986-05-07	1986-10-01
1987	1987-05-18	1987-08-27
1988	1988-05-30	1988-09-23
1989	1989-06-01	1989-09-11
1990	1990-04-26	1990-09-07
1991	1991-05-12	1991-09-18
1992	1992-05-23	1992-08-27
1993	1993-06-09	1993-09-15
1994	1994-04-27	1994-09-14
1995	1995-04-19	1995-09-14
1996	1996-05-19	1996-09-08
1997	1997-05-19	1997-10-06
1998	1998-05-19	1998-09-27
1999	1999-05-30	1999-08-29
2000	2000-05-07	2000-08-09
2001	2001-06-13	2001-08-10
2002	2002-04-16	2002-10-05
2003	2003-06-24	2003-08-30
2004	2004-04-19	2004-08-04
2005	2005-06-08	2005-09-23
2006	2006-05-30	2006-08-29
2007	2007-05-26	2007-10-09
2008	2008-06-07	2008-09-14
2009	2009-04-26	2009-08-27
2010	2010-04-06	2010-09-25
2011	2011-05-26	2011-08-26
2012	2012-05-28	2012-09-08
2013	2013-04-10	2013-10-06
2014	2014-05-13	2014-09-11
2015	2015-05-12	2015-09-09
2016	2016-06-11	2016-09-23
2017	2017-04-29	2017-09-27
2018	2018-05-02	2018-10-04
2019	2019-05-20	2019-10-02
2020	2020-06-03	2020-09-04
2021	2021-05-20	2021-09-15
2022	2022-05-21	2022-09-04
2023	2023-06-02	2023-09-08
2024	2024-05-02	2024-08-29
2025	2025-06-12	2025-09-19
2026	2026-04-15	2026-10-14

Every Year

Days at or above 90 F (32.2 C) per year in Washington, D.C.
Year	Days	First date	Last date	Longest streak in year	Coverage
2026	51	15 April 2026	14 October 2026	6 days	Incomplete, not ranked
2025	36	12 June 2025	19 September 2025	7 days	Complete
2024	48	2 May 2024	29 August 2024	11 days	Complete
2023	32	2 June 2023	8 September 2023	6 days	Complete
2022	38	21 May 2022	4 September 2022	8 days	Complete
2021	48	20 May 2021	15 September 2021	7 days	Complete
2020	46	3 June 2020	4 September 2020	20 days	Complete
2019	62	20 May 2019	2 October 2019	12 days	Complete
2018	45	2 May 2018	4 October 2018	8 days	Complete
2017	43	29 April 2017	27 September 2017	6 days	Complete
2016	58	11 June 2016	23 September 2016	13 days	Complete
2015	52	12 May 2015	9 September 2015	13 days	Complete
2014	24	13 May 2014	11 September 2014	3 days	Complete
2013	35	10 April 2013	6 October 2013	7 days	Complete
2012	53	28 May 2012	8 September 2012	11 days	Complete
2011	50	26 May 2011	26 August 2011	16 days	Complete
2010	67	6 April 2010	25 September 2010	12 days	Complete
2009	22	26 April 2009	27 August 2009	3 days	Complete
2008	35	7 June 2008	14 September 2008	7 days	Complete
2007	44	26 May 2007	9 October 2007	11 days	Complete
2006	36	30 May 2006	29 August 2006	13 days	Complete
2005	39	8 June 2005	23 September 2005	5 days	Complete
2004	11	19 April 2004	4 August 2004	2 days	Complete
2003	20	24 June 2003	30 August 2003	4 days	Complete
2002	56	16 April 2002	5 October 2002	11 days	Complete
2001	16	13 June 2001	10 August 2001	6 days	Complete
2000	12	7 May 2000	9 August 2000	3 days	Complete
1999	48	30 May 1999	29 August 1999	18 days	Complete
1998	35	19 May 1998	27 September 1998	5 days	Complete
1997	42	19 May 1997	6 October 1997	9 days	Complete
1996	21	19 May 1996	8 September 1996	4 days	Complete
1995	52	19 April 1995	14 September 1995	14 days	Complete
1994	46	27 April 1994	14 September 1994	14 days	Complete
1993	51	9 June 1993	15 September 1993	16 days	Complete
1992	21	23 May 1992	27 August 1992	9 days	Complete
1991	59	12 May 1991	18 September 1991	10 days	Complete
1990	30	26 April 1990	7 September 1990	5 days	Complete
1989	22	1 June 1989	11 September 1989	6 days	Complete
1988	59	30 May 1988	23 September 1988	21 days	Complete
1987	45	18 May 1987	27 August 1987	14 days	Complete
1986	41	7 May 1986	1 October 1986	4 days	Complete
1985	28	19 April 1985	10 September 1985	8 days	Complete
1984	23	22 May 1984	3 September 1984	9 days	Complete
1983	55	13 June 1983	20 September 1983	15 days	Complete
1982	22	12 May 1982	2 September 1982	5 days	Complete
1981	33	25 May 1981	14 September 1981	8 days	Complete
1980	67	13 May 1980	23 September 1980	21 days	Complete
1979	20	12 July 1979	31 August 1979	4 days	Complete
1978	39	2 June 1978	19 September 1978	7 days	Complete
1977	46	12 April 1977	19 September 1977	10 days	Complete
1976	36	16 April 1976	13 September 1976	6 days	Complete
1975	35	21 May 1975	30 August 1975	6 days	Complete
1974	32	29 April 1974	13 September 1974	5 days	Complete
1973	37	4 June 1973	29 September 1973	11 days	Complete
1972	16	3 July 1972	17 September 1972	7 days	Complete
1971	29	19 May 1971	10 September 1971	5 days	Complete
1970	55	9 May 1970	26 September 1970	10 days	Complete
1969	39	27 April 1969	7 September 1969	10 days	Complete
1968	40	16 June 1968	25 September 1968	6 days	Complete
1967	24	10 June 1967	5 October 1967	4 days	Complete
1966	59	6 May 1966	5 September 1966	9 days	Complete
1965	48	3 May 1965	22 September 1965	8 days	Complete
1964	49	8 May 1964	11 September 1964	6 days	Complete
1963	28	9 May 1963	12 September 1963	8 days	Complete
1962	21	15 May 1962	13 September 1962	3 days	Complete
1961	36	2 June 1961	25 September 1961	7 days	Complete
1960	23	14 April 1960	9 September 1960	4 days	Complete
1959	42	9 April 1959	5 October 1959	10 days	Complete
1958	23	9 June 1958	26 September 1958	8 days	Complete
1957	46	27 April 1957	13 September 1957	8 days	Complete
1956	23	13 May 1956	1 September 1956	5 days	Complete
1955	31	22 June 1955	22 August 1955	9 days	Complete
1954	32	12 June 1954	4 October 1954	6 days	Complete
1953	44	11 May 1953	5 September 1953	12 days	Complete
1952	35	6 June 1952	14 September 1952	11 days	Complete
1951	28	1 June 1951	5 October 1951	3 days	Complete
1950	13	6 May 1950	3 September 1950	4 days	Complete
1949	26	6 May 1949	27 August 1949	6 days	Complete
1948	25	11 May 1948	20 September 1948	6 days	Complete
1947	18	29 May 1947	14 September 1947	5 days	Complete
1946	18	8 June 1946	9 September 1946	4 days	Complete
1945	20	11 June 1945	29 September 1945	6 days	Complete
1944	36	16 May 1944	5 September 1944	7 days	Complete
1943	49	2 June 1943	6 September 1943	10 days	Complete
1942	25	6 April 1942	16 September 1942	4 days	Complete

Decade averages for Days at or above 90 F (32.2 C) in Washington, D.C.
Decade	Average days per year	Years counted
1940s	27.1	8
1950s	31.7	10
1960s	36.7	10
1970s	34.5	10
1980s	39.5	10
1990s	40.5	10
2000s	29.1	10
2010s	48.9	10
2020s	41.3	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 at or above 90 F (32.2 C) 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).