{"title":"Chicago: Days with 25 mm or more rain, days by year","description":"Days by year for Days with 25 mm or more rain in Chicago.","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/chicago/days-over-25mm-rain/","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_25mm","year":1959,"days":8,"first":"1959-03-26","last":"1959-11-04","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1960,"days":7,"first":"1960-01-12","last":"1960-08-19","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1961,"days":10,"first":"1961-03-04","last":"1961-10-19","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1962,"days":3,"first":"1962-07-02","last":"1962-09-10","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1963,"days":5,"first":"1963-04-29","last":"1963-09-02","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1964,"days":7,"first":"1964-04-05","last":"1964-11-15","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1965,"days":8,"first":"1965-01-01","last":"1965-12-24","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1966,"days":6,"first":"1966-04-20","last":"1966-11-09","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1967,"days":7,"first":"1967-03-31","last":"1967-12-21","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1968,"days":4,"first":"1968-06-25","last":"1968-11-28","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1969,"days":5,"first":"1969-03-24","last":"1969-10-10","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1970,"days":9,"first":"1970-05-12","last":"1970-09-06","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1971,"days":6,"first":"1971-07-04","last":"1971-12-15","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1972,"days":11,"first":"1972-03-12","last":"1972-12-12","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1973,"days":9,"first":"1973-04-21","last":"1973-12-13","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1974,"days":5,"first":"1974-01-26","last":"1974-10-13","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1975,"days":9,"first":"1975-01-10","last":"1975-12-14","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1976,"days":5,"first":"1976-02-21","last":"1976-05-06","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1977,"days":6,"first":"1977-03-28","last":"1977-09-25","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1978,"days":8,"first":"1978-06-07","last":"1978-12-31","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1979,"days":10,"first":"1979-01-13","last":"1979-12-24","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1980,"days":8,"first":"1980-05-28","last":"1980-12-07","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1981,"days":9,"first":"1981-04-22","last":"1981-09-07","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1982,"days":8,"first":"1982-07-02","last":"1982-12-24","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1983,"days":18,"first":"1983-02-02","last":"1983-12-11","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1984,"days":9,"first":"1984-03-15","last":"1984-11-27","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1985,"days":8,"first":"1985-02-23","last":"1985-11-18","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1986,"days":6,"first":"1986-05-17","last":"1986-10-03","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1987,"days":7,"first":"1987-04-14","last":"1987-11-28","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1988,"days":8,"first":"1988-07-30","last":"1988-12-27","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1989,"days":5,"first":"1989-07-18","last":"1989-09-01","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1990,"days":11,"first":"1990-01-25","last":"1990-11-27","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1991,"days":8,"first":"1991-03-27","last":"1991-10-26","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1992,"days":4,"first":"1992-06-17","last":"1992-11-01","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1993,"days":16,"first":"1993-01-04","last":"1993-09-25","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1994,"days":5,"first":"1994-06-23","last":"1994-11-27","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1995,"days":9,"first":"1995-04-09","last":"1995-11-10","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1996,"days":7,"first":"1996-05-09","last":"1996-10-29","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1997,"days":6,"first":"1997-02-21","last":"1997-10-26","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1998,"days":10,"first":"1998-03-09","last":"1998-12-06","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1999,"days":10,"first":"1999-01-02","last":"1999-12-04","longest_streak":1},{"threshold":"prcp_ge_25mm","year":2000,"days":9,"first":"2000-02-18","last":"2000-11-09","longest_streak":1},{"threshold":"prcp_ge_25mm","year":2001,"days":11,"first":"2001-02-24","last":"2001-10-24","longest_streak":2},{"threshold":"prcp_ge_25mm","year":2002,"days":7,"first":"2002-03-02","last":"2002-12-18","longest_streak":1},{"threshold":"prcp_ge_25mm","year":2003,"days":8,"first":"2003-04-04","last":"2003-11-18","longest_streak":1},{"threshold":"prcp_ge_25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