{"title":"Groton: threshold days by year","description":"Days at or beyond each fixed threshold at Groton, 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/CA003042960/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":1932,"days":14,"first":"1932-04-21","last":"1932-11-13","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1933,"days":12,"first":"1933-04-03","last":"1933-12-10","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1934,"days":6,"first":"1934-01-23","last":"1934-11-20","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1935,"days":8,"first":"1935-04-07","last":"1935-12-23","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1936,"days":10,"first":"1936-03-27","last":"1936-12-07","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1937,"days":11,"first":"1937-01-26","last":"1937-11-12","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1939,"days":10,"first":"1939-05-23","last":"1939-12-21","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1940,"days":12,"first":"1940-02-19","last":"1940-11-01","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1941,"days":11,"first":"1941-02-24","last":"1941-12-25","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1942,"days":8,"first":"1942-02-20","last":"1942-10-20","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1943,"days":5,"first":"1943-01-15","last":"1943-06-01","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1944,"days":6,"first":"1944-05-21","last":"1944-12-21","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1945,"days":5,"first":"1945-01-02","last":"1945-12-20","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1946,"days":9,"first":"1946-04-01","last":"1946-11-25","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1947,"days":8,"first":"1947-03-02","last":"1947-09-18","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1948,"days":8,"first":"1948-02-04","last":"1948-09-22","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1949,"days":5,"first":"1949-05-17","last":"1949-10-05","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1950,"days":9,"first":"1950-01-12","last":"1950-10-20","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1951,"days":16,"first":"1951-03-04","last":"1951-12-18","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1952,"days":11,"first":"1952-01-23","last":"1952-11-23","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1954,"days":12,"first":"1954-05-10","last":"1954-10-02","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1955,"days":14,"first":"1955-03-22","last":"1955-07-25","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1956,"days":9,"first":"1956-02-22","last":"1956-08-29","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1960,"days":8,"first":"1960-01-08","last":"1960-11-26","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1932,"days":1,"first":"1932-08-10","last":"1932-08-10","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1933,"days":1,"first":"1933-04-08","last":"1933-04-08","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1934,"days":3,"first":"1934-06-06","last":"1934-09-22","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1937,"days":2,"first":"1937-06-12","last":"1937-08-01","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1939,"days":1,"first":"1939-06-23","last":"1939-06-23","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1946,"days":3,"first":"1946-06-23","last":"1946-10-03","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1947,"days":1,"first":"1947-06-03","last":"1947-06-03","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1949,"days":1,"first":"1949-05-17","last":"1949-05-17","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1950,"days":2,"first":"1950-06-24","last":"1950-08-05","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1951,"days":2,"first":"1951-04-30","last":"1951-06-05","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1954,"days":2,"first":"1954-08-26","last":"1954-09-15","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1955,"days":2,"first":"1955-07-07","last":"1955-07-11","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1956,"days":4,"first":"1956-02-22","last":"1956-08-29","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1951,"days":1,"first":"1951-06-05","last":"1951-06-05","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1956,"days":1,"first":"1956-08-02","last":"1956-08-02","longest_streak":1},{"threshold":"snow_ge_10cm","year":1932,"days":1,"first":"1932-11-13","last":"1932-11-13","longest_streak":1},{"threshold":"snow_ge_10cm","year":1933,"days":8,"first":"1933-04-03","last":"1933-12-10","longest_streak":2},{"threshold":"snow_ge_10cm","year":1934,"days":3,"first":"1934-01-23","last":"1934-11-20","longest_streak":1},{"threshold":"snow_ge_10cm","year":1935,"days":4,"first":"1935-04-07","last":"1935-12-23","longest_streak":1},{"threshold":"snow_ge_10cm","year":1936,"days":5,"first":"1936-03-27","last":"1936-12-07","longest_streak":2},{"threshold":"snow_ge_10cm","year":1937,"days":3,"first":"1937-01-26","last":"1937-11-12","longest_streak":1},{"threshold":"snow_ge_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