{"title":"Imperial: threshold days by year","description":"Days at or beyond each fixed threshold at Imperial, 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/USC00414425/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":1941,"days":23,"first":"1941-02-08","last":"1941-12-12","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1949,"days":9,"first":"1949-01-10","last":"1949-12-30","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1950,"days":8,"first":"1950-01-13","last":"1950-09-05","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1951,"days":5,"first":"1951-06-01","last":"1951-09-11","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1952,"days":7,"first":"1952-01-26","last":"1952-12-31","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1953,"days":1,"first":"1953-12-22","last":"1953-12-22","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1954,"days":7,"first":"1954-03-04","last":"1954-10-06","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1956,"days":3,"first":"1956-01-22","last":"1956-10-16","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1957,"days":11,"first":"1957-02-17","last":"1957-11-18","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1958,"days":9,"first":"1958-01-05","last":"1958-10-28","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1959,"days":8,"first":"1959-05-04","last":"1959-11-14","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1961,"days":13,"first":"1961-01-07","last":"1961-11-01","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1962,"days":3,"first":"1962-03-19","last":"1962-11-19","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1963,"days":4,"first":"1963-05-21","last":"1963-11-19","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1964,"days":4,"first":"1964-03-18","last":"1964-09-24","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1965,"days":9,"first":"1965-05-17","last":"1965-10-17","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1966,"days":7,"first":"1966-01-13","last":"1966-10-06","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1967,"days":7,"first":"1967-05-29","last":"1967-12-14","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1968,"days":14,"first":"1968-01-22","last":"1968-11-26","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1969,"days":12,"first":"1969-04-12","last":"1969-12-29","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1970,"days":7,"first":"1970-02-23","last":"1970-09-28","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1971,"days":2,"first":"1971-08-01","last":"1971-08-15","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1973,"days":7,"first":"1973-03-10","last":"1973-08-31","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1974,"days":15,"first":"1974-01-24","last":"1974-12-25","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1975,"days":13,"first":"1975-01-23","last":"1975-12-27","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1976,"days":12,"first":"1976-04-15","last":"1976-11-12","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1977,"days":11,"first":"1977-01-09","last":"1977-11-29","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1978,"days":8,"first":"1978-05-20","last":"1978-11-04","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1979,"days":5,"first":"1979-02-05","last":"1979-12-13","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1980,"days":7,"first":"1980-05-03","last":"1980-12-07","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1981,"days":15,"first":"1981-01-08","last":"1981-10-21","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1982,"days":6,"first":"1982-04-30","last":"1982-12-09","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1983,"days":4,"first":"1983-05-09","last":"1983-11-05","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1984,"days":13,"first":"1984-05-17","last":"1984-12-23","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1985,"days":6,"first":"1985-01-12","last":"1985-10-17","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1986,"days":16,"first":"1986-05-30","last":"1986-12-28","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1987,"days":14,"first":"1987-02-05","last":"1987-12-25","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1988,"days":8,"first":"1988-05-31","last":"1988-12-09","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1989,"days":5,"first":"1989-02-23","last":"1989-09-13","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1990,"days":13,"first":"1990-02-27","last":"1990-12-16","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1991,"days":12,"first":"1991-01-18","last":"1991-12-21","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1992,"days":20,"first":"1992-01-18","last":"1992-12-14","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1941,"days":13,"first":"1941-04-25","last":"1941-12-12","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1949,"days":6,"first":"1949-04-24","last":"1949-09-19","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1950,"days":1,"first":"1950-09-04","last":"1950-09-04","longest_streak":1},{"threshold":"pr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