{"title":"Heritage: threshold days by year","description":"Days at or beyond each fixed threshold at Heritage, by year.","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/stations/SF003691170/thresholds/","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":"prcp_ge_10mm","year":1914,"days":30,"first":"1914-01-03","last":"1914-12-30","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1915,"days":26,"first":"1915-01-05","last":"1915-12-15","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1916,"days":22,"first":"1916-01-02","last":"1916-12-30","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1918,"days":28,"first":"1918-01-02","last":"1918-12-31","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1919,"days":17,"first":"1919-01-08","last":"1919-12-15","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1920,"days":30,"first":"1920-01-06","last":"1920-12-30","longest_streak":5},{"threshold":"prcp_ge_10mm","year":1922,"days":29,"first":"1922-01-14","last":"1922-12-31","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1923,"days":24,"first":"1923-01-11","last":"1923-12-19","longest_streak":5},{"threshold":"prcp_ge_10mm","year":1924,"days":27,"first":"1924-02-02","last":"1924-12-10","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1925,"days":21,"first":"1925-01-30","last":"1925-12-28","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1931,"days":19,"first":"1931-01-01","last":"1931-11-06","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1932,"days":17,"first":"1932-01-11","last":"1932-12-25","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1933,"days":22,"first":"1933-01-14","last":"1933-12-30","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1934,"days":29,"first":"1934-01-01","last":"1934-12-26","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1935,"days":17,"first":"1935-02-04","last":"1935-12-04","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1936,"days":34,"first":"1936-01-13","last":"1936-12-30","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1937,"days":16,"first":"1937-01-14","last":"1937-12-24","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1938,"days":31,"first":"1938-01-16","last":"1938-12-30","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1939,"days":30,"first":"1939-01-23","last":"1939-12-28","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1940,"days":25,"first":"1940-01-26","last":"1940-12-28","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1941,"days":23,"first":"1941-01-13","last":"1941-12-25","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1942,"days":38,"first":"1942-01-03","last":"1942-12-17","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1943,"days":41,"first":"1943-01-03","last":"1943-12-26","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1944,"days":30,"first":"1944-01-04","last":"1944-12-10","longest_streak":5},{"threshold":"prcp_ge_10mm","year":1945,"days":12,"first":"1945-02-01","last":"1945-11-29","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1946,"days":28,"first":"1946-01-07","last":"1946-12-07","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1947,"days":22,"first":"1947-01-02","last":"1947-12-30","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1948,"days":21,"first":"1948-01-01","last":"1948-10-21","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1949,"days":19,"first":"1949-01-04","last":"1949-12-27","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1950,"days":22,"first":"1950-01-15","last":"1950-11-02","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1951,"days":25,"first":"1951-01-02","last":"1951-11-01","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1952,"days":22,"first":"1952-01-01","last":"1952-12-28","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1953,"days":18,"first":"1953-02-01","last":"1953-12-21","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1954,"days":24,"first":"1954-01-01","last":"1954-12-29","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1957,"days":29,"first":"1957-02-03","last":"1957-12-24","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1958,"days":26,"first":"1958-01-01","last":"1958-12-23","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1959,"days":28,"first":"1959-01-05","last":"1959-12-30","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1960,"days":27,"first":"1960-01-19","last":"1960-12-29","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1961,"days":24,"first":"1961-01-14","last":"1961-12-09","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1962,"days":15,"first":"1962-01-05","last":"1962-12-21","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1963,"days":25,"first":"1963-01-05","last":"1963-12-11","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1964,"days":37,"first":"1964-01-04","last":"1964-12-28","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1965,"days":19,"first":"1965-01-05","last":"1965-12-26","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1966,"days":15,"first":"1966-01-19","last":"1966-12-29","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1967,"days":32,"first":"1967-01-01","last":"1967-12-20","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1968,"days":13,"first":"1968-01-09","last":"1968-12-07","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1969,"days":24,"first":"1969-01-03","last":"1969-12-15","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1970,"days":23,"first":"1970-01-22","last":"1970-12-24","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1971,"days":26,"first":"1971-01-07","last":"1971-12-27","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1972,"days":21,"first":"1972-01-03","last":"1972-12-10","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1973,"days":27,"first":"1973-01-06","last":"1973-12-23","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1974,"days":29,"first":"1974-01-02","last":"1974-12-26","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1976,"days":23,"first":"1976-01-05","last":"1976-12-28","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1977,"days":25,"first":"1977-01-10","last":"1977-12-31","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1978,"days":24,"first":"1978-01-01","last":"1978-12-30","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1979,"days":19,"first":"1979-02-15","last":"1979-12-26","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1980,"days":20,"first":"1980-01-14","last":"1980-12-23","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1981,"days":28,"first":"1981-01-01","last":"1981-12-30","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1982,"days":16,"first":"1982-01-02","last":"1982-12-19","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1983,"days":25,"first":"1983-01-13","last":"1983-12-31","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1984,"days":23,"first":"1984-01-01","last":"1984-12-18","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1985,"days":17,"first":"1985-01-13","last":"1985-12-22","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1986,"days":27,"first":"1986-01-16","last":"1986-12-29","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1987,"days":27,"first":"1987-01-01","last":"1987-12-21","longest_streak":3},{"threshold":"prcp_ge_25mm","year":1914,"days":5,"first":"1914-01-20","last":"1914-12-17","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1915,"days":9,"first":"1915-01-14","last":"1915-12-15","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1916,"days":1,"first":"1916-03-03","last":"1916-03-03","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1918,"days":9,"first":"1918-02-15","last":"1918-12-31","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1919,"days":1,"first":"1919-11-08","last":"1919-11-08","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1920,"days":5,"first":"1920-03-24","last":"1920-10-25","longest_streak":3},{"threshold":"prcp_ge_25mm","year":1922,"days":8,"first":"1922-02-10","last":"1922-12-31","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1923,"days":5,"first":"1923-01-11","last":"1923-10-28","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1924,"days":6,"first":"1924-02-05","last":"1924-11-03","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1925,"days":1,"first":"1925-10-21","last":"1925-10-21","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1931,"days":2,"first":"1931-04-18","last":"1931-11-03","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1932,"days":3,"first":"1932-03-18","last":"1932-05-13","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1933,"days":1,"first":"1933-02-17","last":"1933-02-17","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1934,"days":10,"first":"1934-01-01","last":"1934-12-09","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1935,"days":6,"first":"1935-03-03","last":"1935-10-26","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1936,"days":10,"first":"1936-03-28","last":"1936-12-28","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1937,"days":4,"first":"1937-10-03","last":"1937-12-24","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1938,"days":5,"first":"1938-01-16","last":"1938-12-30","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1939,"days":9,"first":"1939-02-12","last":"1939-11-21","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1940,"days":7,"first":"1940-01-27","last":"1940-12-28","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1941,"days":9,"first":"1941-01-13","last":"1941-09-30","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1942,"days":8,"first":"1942-01-03","last":"1942-12-04","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1943,"days":8,"first":"1943-01-22","last":"1943-11-12","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1944,"days":4,"first":"1944-02-01","last":"1944-10-21","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1945,"days":4,"first":"1945-02-02","last":"1945-11-29","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1946,"days":7,"first":"1946-01-09","last":"1946-11-26","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1947,"days":5,"first":"1947-02-24","last":"1947-12-11","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1948,"days":3,"first":"1948-01-15","last":"1948-03-04","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1949,"days":4,"first":"1949-01-04","last":"1949-12-11","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1950,"days":3,"first":"1950-01-28","last":"1950-10-22","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1951,"days":5,"first":"1951-01-02","last":"1951-10-27","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1952,"days":6,"first":"1952-01-01","last":"1952-12-17","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1953,"days":5,"first":"1953-02-01","last":"1953-11-17","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1954,"days":11,"first":"1954-01-02","last":"1954-12-29","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1957,"days":12,"first":"1957-07-01","last":"1957-11-03","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1958,"days":7,"first":"1958-01-01","last":"1958-12-22","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1959,"days":9,"first":"1959-01-07","last":"1959-12-30","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1960,"days":11,"first":"1960-01-19","last":"1960-12-28","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1961,"days":6,"first":"1961-01-18","last":"1961-12-09","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1962,"days":3,"first":"1962-01-05","last":"1962-12-06","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1963,"days":6,"first":"1963-01-21","last":"1963-12-11","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1964,"days":10,"first":"1964-01-08","last":"1964-12-27","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1965,"days":4,"first":"1965-01-06","last":"1965-11-27","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1966,"days":7,"first":"1966-01-19","last":"1966-12-19","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1967,"days":10,"first":"1967-01-05","last":"1967-12-20","longest_streak":3},{"threshold":"prcp_ge_25mm","year":1968,"days":2,"first":"1968-01-09","last":"1968-03-16","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1969,"days":5,"first":"1969-01-17","last":"1969-10-18","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1970,"days":5,"first":"1970-02-07","last":"1970-11-03","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1971,"days":6,"first":"1971-01-28","last":"1971-12-27","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1972,"days":3,"first":"1972-01-12","last":"1972-12-06","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1973,"days":6,"first":"1973-02-06","last":"1973-12-23","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1974,"days":13,"first":"1974-01-02","last":"1974-12-10","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1976,"days":5,"first":"1976-03-19","last":"1976-11-16","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1977,"days":8,"first":"1977-01-10","last":"1977-12-30","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1978,"days":5,"first":"1978-01-20","last":"1978-12-21","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1979,"days":7,"first":"1979-02-23","last":"1979-12-01","longest_streak":3},{"threshold":"prcp_ge_25mm","year":1980,"days":6,"first":"1980-03-24","last":"1980-12-14","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1981,"days":4,"first":"1981-01-01","last":"1981-11-18","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1982,"days":5,"first":"1982-01-02","last":"1982-10-31","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1983,"days":6,"first":"1983-01-14","last":"1983-11-29","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1984,"days":6,"first":"1984-01-24","last":"1984-10-10","longest_streak":3},{"threshold":"prcp_ge_25mm","year":1985,"days":8,"first":"1985-01-13","last":"1985-12-18","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1986,"days":8,"first":"1986-01-23","last":"1986-12-07","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1987,"days":9,"first":"1987-01-01","last":"1987-12-17","longest_streak":2},{"threshold":"prcp_ge_50mm","year":1914,"days":1,"first":"1914-12-17","last":"1914-12-17","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1915,"days":1,"first":"1915-12-15","last":"1915-12-15","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1918,"days":2,"first":"1918-02-15","last":"1918-12-31","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1934,"days":3,"first":"1934-01-01","last":"1934-11-18","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1936,"days":1,"first":"1936-11-10","last":"1936-11-10","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1937,"days":1,"first":"1937-12-14","last":"1937-12-14","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1938,"days":1,"first":"1938-04-19","last":"1938-04-19","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1939,"days":1,"first":"1939-02-12","last":"1939-02-12","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1941,"days":2,"first":"1941-01-13","last":"1941-01-22","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1943,"days":1,"first":"1943-07-03","last":"1943-07-03","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1945,"days":2,"first":"1945-02-23","last":"1945-03-03","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1946,"days":1,"first":"1946-01-26","last":"1946-01-26","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1947,"days":1,"first":"1947-03-30","last":"1947-03-30","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1949,"days":1,"first":"1949-11-27","last":"1949-11-27","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1952,"days":1,"first":"1952-12-17","last":"1952-12-17","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1953,"days":4,"first":"1953-02-01","last":"1953-11-17","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1954,"days":1,"first":"1954-02-23","last":"1954-02-23","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1957,"days":1,"first":"1957-07-02","last":"1957-07-02","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1958,"days":1,"first":"1958-12-22","last":"1958-12-22","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1959,"days":1,"first":"1959-02-15","last":"1959-02-15","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1960,"days":2,"first":"1960-01-19","last":"1960-12-28","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1961,"days":3,"first":"1961-04-09","last":"1961-12-09","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1963,"days":1,"first":"1963-01-21","last":"1963-01-21","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1964,"days":1,"first":"1964-10-27","last":"1964-10-27","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1966,"days":3,"first":"1966-11-04","last":"1966-12-19","longest_streak":2},{"threshold":"prcp_ge_50mm","year":1972,"days":1,"first":"1972-01-12","last":"1972-01-12","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1976,"days":2,"first":"1976-05-03","last":"1976-10-02","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1977,"days":1,"first":"1977-12-30","last":"1977-12-30","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1979,"days":1,"first":"1979-11-23","last":"1979-11-23","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1981,"days":1,"first":"1981-11-18","last":"1981-11-18","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1983,"days":3,"first":"1983-10-07","last":"1983-11-28","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1985,"days":1,"first":"1985-01-16","last":"1985-01-16","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1987,"days":1,"first":"1987-03-18","last":"1987-03-18","longest_streak":1},{"threshold":"prcp_ge_100mm","year":1966,"days":1,"first":"1966-12-18","last":"1966-12-18","longest_streak":1}]}