{"title":"Washington, D.C.: Days at or above 90 F, days by year","description":"Days by year for Days at or above 90 F in Washington, D.C..","dataAsOf":"2026-10-17T00:00:00Z","lastRevised":"2026-10-18","source":"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.","licence":"US Government open data (NOAA NCEI)","page":"https://worldextremeweathermonitor.com/cities/washington-dc/days-above-90f/","columns":[{"name":"threshold","description":"Threshold id, for example tmax_ge_40c."},{"name":"year","description":"Calendar year."},{"name":"days","description":"Days in the year at or beyond the threshold."},{"name":"first","description":"First qualifying date of the year."},{"name":"last","description":"Last qualifying date of the year."},{"name":"longest_streak","description":"Longest run of consecutive qualifying days inside the year."}],"rows":[{"threshold":"tmax_ge_90f","year":1942,"days":25,"first":"1942-04-06","last":"1942-09-16","longest_streak":4},{"threshold":"tmax_ge_90f","year":1943,"days":49,"first":"1943-06-02","last":"1943-09-06","longest_streak":10},{"threshold":"tmax_ge_90f","year":1944,"days":36,"first":"1944-05-16","last":"1944-09-05","longest_streak":7},{"threshold":"tmax_ge_90f","year":1945,"days":20,"first":"1945-06-11","last":"1945-09-29","longest_streak":6},{"threshold":"tmax_ge_90f","year":1946,"days":18,"first":"1946-06-08","last":"1946-09-09","longest_streak":4},{"threshold":"tmax_ge_90f","year":1947,"days":18,"first":"1947-05-29","last":"1947-09-14","longest_streak":5},{"threshold":"tmax_ge_90f","year":1948,"days":25,"first":"1948-05-11","last":"1948-09-20","longest_streak":6},{"threshold":"tmax_ge_90f","year":1949,"days":26,"first":"1949-05-06","last":"1949-08-27","longest_streak":6},{"threshold":"tmax_ge_90f","year":1950,"days":13,"first":"1950-05-06","last":"1950-09-03","longest_streak":4},{"threshold":"tmax_ge_90f","year":1951,"days":28,"first":"1951-06-01","last":"1951-10-05","longest_streak":3},{"threshold":"tmax_ge_90f","year":1952,"days":35,"first":"1952-06-06","last":"1952-09-14","longest_streak":11},{"threshold":"tmax_ge_90f","year":1953,"days":44,"first":"1953-05-11","last":"1953-09-05","longest_streak":12},{"threshold":"tmax_ge_90f","year":1954,"days":32,"first":"1954-06-12","last":"1954-10-04","longest_streak":6},{"threshold":"tmax_ge_90f","year":1955,"days":31,"first":"1955-06-22","last":"1955-08-22","longest_streak":9},{"threshold":"tmax_ge_90f","year":1956,"days":23,"first":"1956-05-13","last":"1956-09-01","longest_streak":5},{"threshold":"tmax_ge_90f","year":1957,"days":46,"first":"1957-04-27","last":"1957-09-13","longest_streak":8},{"threshold":"tmax_ge_90f","year":1958,"days":23,"first":"1958-06-09","last":"1958-09-26","longest_streak":8},{"threshold":"tmax_ge_90f","year":1959,"days":42,"first":"1959-04-09","last":"1959-10-05","longest_streak":10},{"threshold":"tmax_ge_90f","year":1960,"days":23,"first":"1960-04-14","last":"1960-09-09","longest_streak":4},{"threshold":"tmax_ge_90f","year":1961,"days":36,"first":"1961-06-02","last":"1961-09-25","longest_streak":7},{"threshold":"tmax_ge_90f","year":1962,"days":21,"first":"1962-05-15","last":"1962-09-13","longest_streak":3},{"threshold":"tmax_ge_90f","year":1963,"days":28,"first":"1963-05-09","last":"1963-09-12","longest_streak":8},{"threshold":"tmax_ge_90f","year":1964,"days":49,"first":"1964-05-08","last":"1964-09-11","longest_streak":6},{"threshold":"tmax_ge_90f","year":1965,"days":48,"first":"1965-05-03","last":"1965-09-22","longest_streak":8},{"threshold":"tmax_ge_90f","year":1966,"days":59,"first":"1966-05-06","last":"1966-09-05","longest_streak":9},{"threshold":"tmax_ge_90f","year":1967,"days":24,"first":"1967-06-10","last":"1967-10-05","longest_streak":4},{"threshold":"tmax_ge_90f","year":1968,"days":40,"first":"1968-06-16","last":"1968-09-25","longest_streak":6},{"threshold":"tmax_ge_90f","year":1969,"days":39,"first":"1969-04-27","last":"1969-09-07","longest_streak":10},{"threshold":"tmax_ge_90f","year":1970,"days":55,"first":"1970-05-09","last":"1970-09-26","longest_streak":10},{"threshold":"tmax_ge_90f","year":1971,"days":29,"first":"1971-05-19","last":"1971-09-10","longest_streak":5},{"threshold":"tmax_ge_90f","year":1972,"days":16,"first":"1972-07-03","last":"1972-09-17","longest_streak":7},{"threshold":"tmax_ge_90f","year":1973,"days":37,"first":"1973-06-04","last":"1973-09-29","longest_streak":11},{"threshold":"tmax_ge_90f","year":1974,"days":32,"first":"1974-04-29","last":"1974-09-13","longest_streak":5},{"threshold":"tmax_ge_90f","year":1975,"days":35,"first":"1975-05-21","last":"1975-08-30","longest_streak":6},{"threshold":"tmax_ge_90f","year":1976,"days":36,"first":"1976-04-16","last":"1976-09-13","longest_streak":6},{"threshold":"tmax_ge_90f","year":1977,"days":46,"first":"1977-04-12","last":"1977-09-19","longest_streak":10},{"threshold":"tmax_ge_90f","year":1978,"days":39,"first":"1978-06-02","last":"1978-09-19","longest_streak":7},{"threshold":"tmax_ge_90f","year":1979,"days":20,"first":"1979-07-12","last":"1979-08-31","longest_streak":4},{"threshold":"tmax_ge_90f","year":1980,"days":67,"first":"1980-05-13","last":"1980-09-23","longest_streak":21},{"threshold":"tmax_ge_90f","year":1981,"days":33,"first":"1981-05-25","last":"1981-09-14","longest_streak":8},{"threshold":"tmax_ge_90f","year":1982,"days":22,"first":"1982-05-12","last":"1982-09-02","longest_streak":5},{"threshold":"tmax_ge_90f","year":1983,"days":55,"first":"1983-06-13","last":"1983-09-20","longest_streak":15},{"threshold":"tmax_ge_90f","year":1984,"days":23,"first":"1984-05-22","last":"1984-09-03","longest_streak":9},{"threshold":"tmax_ge_90f","year":1985,"days":28,"first":"1985-04-19","last":"1985-09-10","longest_streak":8},{"threshold":"tmax_ge_90f","year":1986,"days":41,"first":"1986-05-07","last":"1986-10-01","longest_streak":4},{"threshold":"tmax_ge_90f","year":1987,"days":45,"first":"1987-05-18","last":"1987-08-27","longest_streak":14},{"threshold":"tmax_ge_90f","year":1988,"days":59,"first":"1988-05-30","last":"1988-09-23","longest_streak":21},{"threshold":"tmax_ge_90f","year":1989,"days":22,"first":"1989-06-01","last":"1989-09-11","longest_streak":6},{"threshold":"tmax_ge_90f","year":1990,"days":30,"first":"1990-04-26","last":"1990-09-07","longest_streak":5},{"threshold":"tmax_ge_90f","year":1991,"days":59,"first":"1991-05-12","last":"1991-09-18","longest_streak":10},{"threshold":"tmax_ge_90f","year":1992,"days":21,"first":"1992-05-23","last":"1992-08-27","longest_streak":9},{"threshold":"tmax_ge_90f","year":1993,"days":51,"first":"1993-06-09","last":"1993-09-15","longest_streak":16},{"threshold":"tmax_ge_90f","year":1994,"days":46,"first":"1994-04-27","last":"1994-09-14","longest_streak":14},{"threshold":"tmax_ge_90f","year":1995,"days":52,"first":"1995-04-19","last":"1995-09-14","longest_streak":14},{"threshold":"tmax_ge_90f","year":1996,"days":21,"first":"1996-05-19","last":"1996-09-08","longest_streak":4},{"threshold":"tmax_ge_90f","year":1997,"days":42,"first":"1997-05-19","last":"1997-10-06","longest_streak":9},{"threshold":"tmax_ge_90f","year":1998,"days":35,"first":"1998-05-19","last":"1998-09-27","longest_streak":5},{"threshold":"tmax_ge_90f","year":1999,"days":48,"first":"1999-05-30","last":"1999-08-29","longest_streak":18},{"threshold":"tmax_ge_90f","year":2000,"days":12,"first":"2000-05-07","last":"2000-08-09","longest_streak":3},{"threshold":"tmax_ge_90f","year":2001,"days":16,"first":"2001-06-13","last":"2001-08-10","longest_streak":6},{"threshold":"tmax_ge_90f","year":2002,"days":56,"first":"2002-04-16","last":"2002-10-05","longest_streak":11},{"threshold":"tmax_ge_90f","year":2003,"days":20,"first":"2003-06-24","last":"2003-08-30","longest_streak":4},{"threshold":"tmax_ge_90f","year":2004,"days":11,"first":"2004-04-19","last":"2004-08-04","longest_streak":2},{"threshold":"tmax_ge_90f","year":2005,"days":39,"first":"2005-06-08","last":"2005-09-23","longest_streak":5},{"threshold":"tmax_ge_90f","year":2006,"days":36,"first":"2006-05-30","last":"2006-08-29","longest_streak":13},{"threshold":"tmax_ge_90f","year":2007,"days":44,"first":"2007-05-26","last":"2007-10-09","longest_streak":11},{"threshold":"tmax_ge_90f","year":2008,"days":35,"first":"2008-06-07","last":"2008-09-14","longest_streak":7},{"threshold":"tmax_ge_90f","year":2009,"days":22,"first":"2009-04-26","last":"2009-08-27","longest_streak":3},{"threshold":"tmax_ge_90f","year":2010,"days":67,"first":"2010-04-06","last":"2010-09-25","longest_streak":12},{"threshold":"tmax_ge_90f","year":2011,"days":50,"first":"2011-05-26","last":"2011-08-26","longest_streak":16},{"threshold":"tmax_ge_90f","year":2012,"days":53,"first":"2012-05-28","last":"2012-09-08","longest_streak":11},{"threshold":"tmax_ge_90f","year":2013,"days":35,"first":"2013-04-10","last":"2013-10-06","longest_streak":7},{"threshold":"tmax_ge_90f","year":2014,"days":24,"first":"2014-05-13","last":"2014-09-11","longest_streak":3},{"threshold":"tmax_ge_90f","year":2015,"days":52,"first":"2015-05-12","last":"2015-09-09","longest_streak":13},{"threshold":"tmax_ge_90f","year":2016,"days":58,"first":"2016-06-11","last":"2016-09-23","longest_streak":13},{"threshold":"tmax_ge_90f","year":2017,"days":43,"first":"2017-04-29","last":"2017-09-27","longest_streak":6},{"threshold":"tmax_ge_90f","year":2018,"days":45,"first":"2018-05-02","last":"2018-10-04","longest_streak":8},{"threshold":"tmax_ge_90f","year":2019,"days":62,"first":"2019-05-20","last":"2019-10-02","longest_streak":12},{"threshold":"tmax_ge_90f","year":2020,"days":46,"first":"2020-06-03","last":"2020-09-04","longest_streak":20},{"threshold":"tmax_ge_90f","year":2021,"days":48,"first":"2021-05-20","last":"2021-09-15","longest_streak":7},{"threshold":"tmax_ge_90f","year":2022,"days":38,"first":"2022-05-21","last":"2022-09-04","longest_streak":8},{"threshold":"tmax_ge_90f","year":2023,"days":32,"first":"2023-06-02","last":"2023-09-08","longest_streak":6},{"threshold":"tmax_ge_90f","year":2024,"days":48,"first":"2024-05-02","last":"2024-08-29","longest_streak":11},{"threshold":"tmax_ge_90f","year":2025,"days":36,"first":"2025-06-12","last":"2025-09-19","longest_streak":7},{"threshold":"tmax_ge_90f","year":2026,"days":51,"first":"2026-04-15","last":"2026-10-14","longest_streak":6}]}