{"title":"Central San Francisco: threshold days by year","description":"Days at or beyond each fixed threshold at Central San Francisco, 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/RQC00662316/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":1955,"days":25,"first":"1955-04-09","last":"1955-12-07","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1956,"days":24,"first":"1956-02-03","last":"1956-12-30","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1957,"days":16,"first":"1957-03-18","last":"1957-12-11","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1958,"days":30,"first":"1958-01-11","last":"1958-11-22","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1959,"days":24,"first":"1959-03-03","last":"1959-12-26","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1960,"days":38,"first":"1960-01-14","last":"1960-12-03","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1961,"days":26,"first":"1961-01-09","last":"1961-11-28","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1962,"days":25,"first":"1962-02-05","last":"1962-12-12","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1963,"days":23,"first":"1963-01-03","last":"1963-11-22","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1964,"days":18,"first":"1964-01-12","last":"1964-12-28","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1965,"days":16,"first":"1965-04-30","last":"1965-12-24","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1966,"days":23,"first":"1966-01-11","last":"1966-11-24","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1967,"days":16,"first":"1967-03-25","last":"1967-11-24","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1968,"days":24,"first":"1968-01-19","last":"1968-12-16","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1969,"days":30,"first":"1969-01-05","last":"1969-12-22","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1970,"days":28,"first":"1970-05-04","last":"1970-11-23","longest_streak":5},{"threshold":"prcp_ge_10mm","year":1971,"days":18,"first":"1971-02-05","last":"1971-11-27","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1972,"days":19,"first":"1972-01-16","last":"1972-11-28","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1973,"days":15,"first":"1973-01-18","last":"1973-11-13","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1974,"days":28,"first":"1974-01-23","last":"1974-12-29","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1975,"days":18,"first":"1975-03-28","last":"1975-12-11","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1976,"days":15,"first":"1976-02-02","last":"1976-10-31","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1977,"days":20,"first":"1977-02-23","last":"1977-11-26","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1978,"days":16,"first":"1978-01-29","last":"1978-11-15","longest_streak":6},{"threshold":"prcp_ge_10mm","year":1979,"days":29,"first":"1979-01-19","last":"1979-12-20","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1980,"days":18,"first":"1980-01-07","last":"1980-12-30","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1981,"days":27,"first":"1981-02-14","last":"1981-12-12","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1982,"days":22,"first":"1982-02-23","last":"1982-12-20","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1983,"days":22,"first":"1983-03-13","last":"1983-11-06","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1984,"days":25,"first":"1984-01-13","last":"1984-11-27","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1985,"days":21,"first":"1985-03-18","last":"1985-11-14","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1986,"days":19,"first":"1986-01-30","last":"1986-12-17","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1987,"days":28,"first":"1987-01-06","last":"1987-12-31","longest_streak":5},{"threshold":"prcp_ge_10mm","year":1988,"days":19,"first":"1988-02-15","last":"1988-11-23","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1989,"days":16,"first":"1989-02-12","last":"1989-11-13","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1990,"days":27,"first":"1990-04-20","last":"1990-11-20","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1991,"days":15,"first":"1991-02-12","last":"1991-11-17","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1992,"days":25,"first":"1992-01-06","last":"1992-12-02","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1993,"days":17,"first":"1993-01-01","last":"1993-11-21","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1994,"days":19,"first":"1994-01-23","last":"1994-12-23","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1995,"days":21,"first":"1995-02-22","last":"1995-12-20","longest_streak":3},{"threshold":"prcp_ge_25mm","year":1955,"days":9,"first":"1955-05-31","last":"1955-11-05","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1956,"days":12,"first":"1956-02-24","last":"1956-12-30","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1957,"days":5,"first":"1957-07-05","last":"1957-12-11","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1958,"days":10,"first":"1958-04-18","last":"1958-10-19","longest_s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