{"title":"Washington, D.C.: Days with 10 cm or more snowfall, days by year","description":"Days by year for Days with 10 cm or more snowfall 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-over-10cm-snow/","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":"snow_ge_10cm","year":1942,"days":2,"first":"1942-03-21","last":"1942-12-20","longest_streak":1},{"threshold":"snow_ge_10cm","year":1945,"days":1,"first":"1945-12-19","last":"1945-12-19","longest_streak":1},{"threshold":"snow_ge_10cm","year":1946,"days":2,"first":"1946-01-27","last":"1946-02-10","longest_streak":1},{"threshold":"snow_ge_10cm","year":1947,"days":1,"first":"1947-02-20","last":"1947-02-20","longest_streak":1},{"threshold":"snow_ge_10cm","year":1948,"days":3,"first":"1948-01-24","last":"1948-12-19","longest_streak":1},{"threshold":"snow_ge_10cm","year":1949,"days":1,"first":"1949-01-31","last":"1949-01-31","longest_streak":1},{"threshold":"snow_ge_10cm","year":1953,"days":1,"first":"1953-11-06","last":"1953-11-06","longest_streak":1},{"threshold":"snow_ge_10cm","year":1954,"days":1,"first":"1954-01-22","last":"1954-01-22","longest_streak":1},{"threshold":"snow_ge_10cm","year":1957,"days":1,"first":"1957-12-04","last":"1957-12-04","longest_streak":1},{"threshold":"snow_ge_10cm","year":1958,"days":1,"first":"1958-02-15","last":"1958-02-15","longest_streak":1},{"threshold":"snow_ge_10cm","year":1960,"days":3,"first":"1960-02-13","last":"1960-12-11","longest_streak":1},{"threshold":"snow_ge_10cm","year":1961,"days":4,"first":"1961-01-19","last":"1961-02-08","longest_streak":1},{"threshold":"snow_ge_10cm","year":1962,"days":2,"first":"1962-12-21","last":"1962-12-25","longest_streak":1},{"threshold":"snow_ge_10cm","year":1963,"days":1,"first":"1963-12-23","last":"1963-12-23","longest_streak":1},{"threshold":"snow_ge_10cm","year":1964,"days":4,"first":"1964-01-12","last":"1964-03-30","longest_streak":2},{"threshold":"snow_ge_10cm","year":1966,"days":5,"first":"1966-01-26","last":"1966-12-24","longest_streak":1},{"threshold":"snow_ge_10cm","year":1967,"days":4,"first":"1967-02-07","last":"1967-12-31","longest_streak":1},{"threshold":"snow_ge_10cm","year":1969,"days":1,"first":"1969-12-25","last":"1969-12-25","longest_streak":1},{"threshold":"snow_ge_10cm","year":1970,"days":1,"first":"1970-12-31","last":"1970-12-31","longest_streak":2},{"threshold":"snow_ge_10cm","year":1971,"days":1,"first":"1971-01-01","last":"1971-01-01","longest_streak":0},{"threshold":"snow_ge_10cm","year":1972,"days":1,"first":"1972-02-19","last":"1972-02-19","longest_streak":1},{"threshold":"snow_ge_10cm","year":1973,"days":2,"first":"1973-12-16","last":"1973-12-17","longest_streak":2},{"threshold":"snow_ge_10cm","year":1974,"days":1,"first":"1974-02-08","last":"1974-02-08","longest_streak":1},{"threshold":"snow_ge_10cm","year":1975,"days":1,"first":"1975-02-04","last":"1975-02-04","longest_streak":1},{"threshold":"snow_ge_10cm","year":1977,"days":1,"first":"1977-01-07","last":"1977-01-07","longest_streak":1},{"threshold":"snow_ge_10cm","year":1978,"days":2,"first":"1978-01-13","last":"1978-03-03","longest_streak":1},{"threshold":"snow_ge_10cm","year":1979,"days":4,"first":"1979-02-07","last":"1979-02-19","longest_streak":2},{"threshold":"snow_ge_10cm","year":1980,"days":2,"first":"1980-01-05","last":"1980-03-01","longest_streak":1},{"threshold":"snow_ge_10cm","year":1982,"days":2,"first":"1982-01-13","last":"1982-12-12","longest_streak":1},{"threshold":"snow_ge_10cm","year":1983,"days":2,"first":"1983-02-06","last":"1983-02-11","longest_streak":1},{"threshold":"snow_ge_10cm","year":1987,"days":5,"first":"1987-01-22","last":"1987-11-11","longest_streak":2},{"threshold":"snow_ge_10cm","year":1988,"days":1,"first":"1988-01-08","last":"1988-01-08","longest_streak":1},{"threshold":"snow_ge_10cm","year":1993,"days":1,"first":"1993-03-13","last":"1993-03-13","longest_streak":1},{"threshold":"snow_ge_10cm","year":1995,"days":1,"first":"1995-02-04","last":"1995-02-04","longest_streak":1},{"threshold":"snow_ge_10cm","year":1996,"days":4,"first":"1996-01-07","last":"1996-02-16","longest_streak":1},{"threshold":"snow_ge_10cm","year":1999,"days":1,"first":"1999-03-09","last":"1999-03-09","longest_streak":1},{"threshold":"snow_ge_10cm","year":2000,"days":1,"first":"2000-01-25","last":"2000-01-25","longest_streak":1},{"threshold":"snow_ge_10cm","year":2002,"days":1,"first":"2002-12-05","last":"2002-12-05","longest_streak":1},{"threshold":"snow_ge_10cm","year":2003,"days":1,"first":"2003-02-16","last":"2003-02-16","longest_streak":1},{"threshold":"snow_ge_10cm","year":2006,"days":1,"first":"2006-02-12","last":"2006-02-12","longest_streak":1},{"threshold":"snow_ge_10cm","year":2009,"days":2,"first":"2009-03-02","last":"2009-12-19","longest_streak":1},{"threshold":"snow_ge_10cm","year":2010,"days":4,"first":"2010-01-30","last":"2010-02-10","longest_streak":2},{"threshold":"snow_ge_10cm","year":2011,"days":1,"first":"2011-01-26","last":"2011-01-26","longest_streak":1},{"threshold":"snow_ge_10cm","year":2014,"days":1,"first":"2014-02-13","last":"2014-02-13","longest_streak":1},{"threshold":"snow_ge_10cm","year":2015,"days":1,"first":"2015-03-05","last":"2015-03-05","longest_streak":1},{"threshold":"snow_ge_10cm","year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