{"title":"Washington, D.C.: Days with min at or below -10 C, days by year","description":"Days by year for Days with min at or below -10 C 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-below-minus-10c/","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":"tmin_le_m10c","year":1942,"days":10,"first":"1942-01-06","last":"1942-12-21","longest_streak":7},{"threshold":"tmin_le_m10c","year":1943,"days":5,"first":"1943-02-14","last":"1943-12-16","longest_streak":3},{"threshold":"tmin_le_m10c","year":1945,"days":3,"first":"1945-01-25","last":"1945-12-24","longest_streak":1},{"threshold":"tmin_le_m10c","year":1946,"days":2,"first":"1946-01-23","last":"1946-01-28","longest_streak":1},{"threshold":"tmin_le_m10c","year":1947,"days":6,"first":"1947-01-22","last":"1947-02-09","longest_streak":3},{"threshold":"tmin_le_m10c","year":1948,"days":9,"first":"1948-01-15","last":"1948-12-27","longest_streak":3},{"threshold":"tmin_le_m10c","year":1951,"days":5,"first":"1951-02-03","last":"1951-12-17","longest_streak":2},{"threshold":"tmin_le_m10c","year":1954,"days":1,"first":"1954-01-23","last":"1954-01-23","longest_streak":1},{"threshold":"tmin_le_m10c","year":1955,"days":5,"first":"1955-01-28","last":"1955-02-12","longest_streak":2},{"threshold":"tmin_le_m10c","year":1957,"days":5,"first":"1957-01-15","last":"1957-12-12","longest_streak":3},{"threshold":"tmin_le_m10c","year":1958,"days":4,"first":"1958-02-09","last":"1958-02-18","longest_streak":3},{"threshold":"tmin_le_m10c","year":1959,"days":6,"first":"1959-01-05","last":"1959-02-20","longest_streak":3},{"threshold":"tmin_le_m10c","year":1960,"days":4,"first":"1960-12-12","last":"1960-12-24","longest_streak":2},{"threshold":"tmin_le_m10c","year":1961,"days":8,"first":"1961-01-22","last":"1961-02-06","longest_streak":2},{"threshold":"tmin_le_m10c","year":1962,"days":7,"first":"1962-01-10","last":"1962-12-31","longest_streak":3},{"threshold":"tmin_le_m10c","year":1963,"days":12,"first":"1963-01-01","last":"1963-12-31","longest_streak":2},{"threshold":"tmin_le_m10c","year":1964,"days":3,"first":"1964-01-14","last":"1964-01-16","longest_streak":3},{"threshold":"tmin_le_m10c","year":1965,"days":5,"first":"1965-01-15","last":"1965-02-01","longest_streak":3},{"threshold":"tmin_le_m10c","year":1966,"days":6,"first":"1966-01-28","last":"1966-02-06","longest_streak":5},{"threshold":"tmin_le_m10c","year":1967,"days":3,"first":"1967-02-08","last":"1967-02-25","longest_streak":2},{"threshold":"tmin_le_m10c","year":1968,"days":12,"first":"1968-01-01","last":"1968-12-11","longest_streak":3},{"threshold":"tmin_le_m10c","year":1969,"days":1,"first":"1969-01-05","last":"1969-01-05","longest_streak":1},{"threshold":"tmin_le_m10c","year":1970,"days":7,"first":"1970-01-08","last":"1970-02-26","longest_streak":3},{"threshold":"tmin_le_m10c","year":1971,"days":4,"first":"1971-01-28","last":"1971-02-02","longest_streak":2},{"threshold":"tmin_le_m10c","year":1972,"days":4,"first":"1972-01-15","last":"1972-02-08","longest_streak":3},{"threshold":"tmin_le_m10c","year":1973,"days":3,"first":"1973-02-12","last":"1973-02-18","longest_streak":2},{"threshold":"tmin_le_m10c","year":1976,"days":5,"first":"1976-01-09","last":"1976-12-30","longest_streak":2},{"threshold":"tmin_le_m10c","year":1977,"days":12,"first":"1977-01-06","last":"1977-02-07","longest_streak":4},{"threshold":"tmin_le_m10c","year":1978,"days":2,"first":"1978-01-09","last":"1978-01-10","longest_streak":2},{"threshold":"tmin_le_m10c","year":1979,"days":10,"first":"1979-01-03","last":"1979-02-20","longest_streak":4},{"threshold":"tmin_le_m10c","year":1980,"days":3,"first":"1980-03-01","last":"1980-12-26","longest_streak":2},{"threshold":"tmin_le_m10c","year":1981,"days":4,"first":"1981-01-04","last":"1981-01-13","longest_streak":2},{"threshold":"tmin_le_m10c","year":1982,"days":11,"first":"1982-01-09","last":"1982-01-27","longest_streak":4},{"threshold":"tmin_le_m10c","year":1983,"days":4,"first":"1983-12-24","last":"1983-12-31","longest_streak":3},{"threshold":"tmin_le_m10c","year":1984,"days":4,"first":"1984-01-12","last":"1984-01-22","longest_streak":3},{"threshold":"tmin_le_m10c","year":1985,"days":4,"first":"1985-01-20","last":"1985-12-26","longest_streak":3},{"threshold":"tmin_le_m10c","year":1986,"days":3,"first":"1986-01-28","last":"1986-03-08","longest_streak":2},{"threshold":"tmin_le_m10c","year":1987,"days":5,"first":"1987-01-23","last":"1987-01-28","longest_streak":3},{"threshold":"tmin_le_m10c","year":1988,"days":9,"first":"1988-01-05","last":"1988-12-13","longest_streak":3},{"threshold":"tmin_le_m10c","year":1989,"days":7,"first":"1989-12-17","last":"1989-12-27","longest_streak":5},{"threshold":"tmin_le_m10c","year":1990,"days":1,"first":"1990-02-26","last":"1990-02-26","longest_streak":1},{"threshold":"tmin_le_m10c","year":1992,"days":1,"first":"1992-01-19","last":"1992-01-19","longest_streak":1},{"threshold":"tmin_le_m10c","year":1993,"days":1,"first":"1993-02-19","last":"1993-02-19","longest_streak":1},{"threshold":"tmin_le_m10c","year":1994,"days":7,"first":"1994-01-15","last":"1994-01-22","longest_streak":5},{"threshold":"tmin_le_m10c","year":1995,"days":4,"first":"1995-02-05","last":"1995-02-12","longest_streak":3},{"threshold":"tmin_le_m10c"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