{"title":"Phoenix: Frost days (min at or below 0 C), days by year","description":"Days by year for Frost days (min at or below 0 C) in Phoenix.","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/phoenix/days-below-0c/","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_0c","year":1934,"days":21,"first":"1934-01-06","last":"1934-12-19","longest_streak":6},{"threshold":"tmin_le_0c","year":1938,"days":32,"first":"1938-01-06","last":"1938-12-30","longest_streak":8},{"threshold":"tmin_le_0c","year":1941,"days":11,"first":"1941-01-17","last":"1941-12-27","longest_streak":2},{"threshold":"tmin_le_0c","year":1942,"days":25,"first":"1942-01-03","last":"1942-12-28","longest_streak":5},{"threshold":"tmin_le_0c","year":1943,"days":15,"first":"1943-01-10","last":"1943-12-31","longest_streak":4},{"threshold":"tmin_le_0c","year":1944,"days":31,"first":"1944-01-01","last":"1944-12-31","longest_streak":9},{"threshold":"tmin_le_0c","year":1948,"days":42,"first":"1948-01-01","last":"1948-12-29","longest_streak":6},{"threshold":"tmin_le_0c","year":1949,"days":34,"first":"1949-01-03","last":"1949-12-28","longest_streak":6},{"threshold":"tmin_le_0c","year":1950,"days":12,"first":"1950-01-03","last":"1950-02-01","longest_streak":5},{"threshold":"tmin_le_0c","year":1951,"days":19,"first":"1951-01-01","last":"1951-12-23","longest_streak":6},{"threshold":"tmin_le_0c","year":1952,"days":18,"first":"1952-01-02","last":"1952-12-26","longest_streak":4},{"threshold":"tmin_le_0c","year":1953,"days":16,"first":"1953-02-21","last":"1953-12-31","longest_streak":8},{"threshold":"tmin_le_0c","year":1954,"days":10,"first":"1954-01-01","last":"1954-12-31","longest_streak":5},{"threshold":"tmin_le_0c","year":1955,"days":14,"first":"1955-01-21","last":"1955-02-23","longest_streak":5},{"threshold":"tmin_le_0c","year":1956,"days":11,"first":"1956-02-02","last":"1956-12-28","longest_streak":4},{"threshold":"tmin_le_0c","year":1957,"days":1,"first":"1957-12-03","last":"1957-12-03","longest_streak":1},{"threshold":"tmin_le_0c","year":1958,"days":2,"first":"1958-01-23","last":"1958-11-18","longest_streak":1},{"threshold":"tmin_le_0c","year":1959,"days":2,"first":"1959-01-02","last":"1959-01-04","longest_streak":1},{"threshold":"tmin_le_0c","year":1960,"days":17,"first":"1960-01-02","last":"1960-12-19","longest_streak":6},{"threshold":"tmin_le_0c","year":1961,"days":5,"first":"1961-01-01","last":"1961-12-12","longest_streak":2},{"threshold":"tmin_le_0c","year":1962,"days":7,"first":"1962-01-10","last":"1962-03-15","longest_streak":4},{"threshold":"tmin_le_0c","year":1963,"days":18,"first":"1963-01-12","last":"1963-12-31","longest_streak":7},{"threshold":"tmin_le_0c","year":1964,"days":35,"first":"1964-01-06","last":"1964-12-16","longest_streak":10},{"threshold":"tmin_le_0c","year":1965,"days":8,"first":"1965-01-26","last":"1965-12-20","longest_streak":3},{"threshold":"tmin_le_0c","year":1966,"days":31,"first":"1966-01-02","last":"1966-12-31","longest_streak":12},{"threshold":"tmin_le_0c","year":1967,"days":18,"first":"1967-01-01","last":"1967-12-22","longest_streak":3},{"threshold":"tmin_le_0c","year":1968,"days":13,"first":"1968-01-01","last":"1968-12-31","longest_streak":3},{"threshold":"tmin_le_0c","year":1969,"days":7,"first":"1969-01-30","last":"1969-12-31","longest_streak":4},{"threshold":"tmin_le_0c","year":1970,"days":11,"first":"1970-01-01","last":"1970-12-30","longest_streak":3},{"threshold":"tmin_le_0c","year":1971,"days":17,"first":"1971-01-04","last":"1971-12-16","longest_streak":7},{"threshold":"tmin_le_0c","year":1972,"days":13,"first":"1972-01-05","last":"1972-12-15","longest_streak":3},{"threshold":"tmin_le_0c","year":1973,"days":3,"first":"1973-01-21","last":"1973-12-25","longest_streak":2},{"threshold":"tmin_le_0c","year":1974,"days":5,"first":"1974-01-03","last":"1974-12-27","longest_streak":2},{"threshold":"tmin_le_0c","year":1975,"days":7,"first":"1975-01-03","last":"1975-02-23","longest_streak":3},{"threshold":"tmin_le_0c","year":1976,"days":4,"first":"1976-01-01","last":"1976-01-05","longest_streak":3},{"threshold":"tmin_le_0c","year":1977,"days":4,"first":"1977-01-09","last":"1977-01-12","longest_streak":4},{"threshold":"tmin_le_0c","year":1978,"days":4,"first":"1978-12-07","last":"1978-12-10","longest_streak":4},{"threshold":"tmin_le_0c","year":1979,"days":5,"first":"1979-01-02","last":"1979-11-22","longest_streak":2},{"threshold":"tmin_le_0c","year":1985,"days":3,"first":"1985-02-01","last":"1985-02-05","longest_streak":2},{"threshold":"tmin_le_0c","year":1987,"days":5,"first":"1987-01-17","last":"1987-12-27","longest_streak":3},{"threshold":"tmin_le_0c","year":1988,"days":4,"first":"1988-12-27","last":"1988-12-30","longest_streak":4},{"threshold":"tmin_le_0c","year":1990,"days":4,"first":"1990-02-15","last":"1990-12-26","longest_streak":2},{"threshold":"tmin_le_0c","year":1998,"days":1,"first":"1998-12-24","last":"1998-12-24","longest_streak":1},{"threshold":"tmin_le_0c","year":2000,"days":1,"first":"2000-01-03","last":"2000-01-03","longest_streak":1},{"threshold":"tmin_le_0c","year":2003,"days":2,"first":"2003-12-28","last":"2003-12-29","longest_streak":2},{"threshold":"tmin_le_0c","year":2007,"days":2,"first":"2007-01-14","last":"2007-01-15","longest_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