{"title":"Grand Valley: threshold days by year","description":"Days at or beyond each fixed threshold at Grand Valley, 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/CA006142990/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":"tmax_ge_30c","year":1935,"days":13,"first":"1935-07-05","last":"1935-08-20","longest_streak":5},{"threshold":"tmax_ge_30c","year":1936,"days":16,"first":"1936-07-07","last":"1936-09-15","longest_streak":8},{"threshold":"tmax_ge_30c","year":1937,"days":19,"first":"1937-05-31","last":"1937-09-03","longest_streak":5},{"threshold":"tmax_ge_30c","year":1938,"days":5,"first":"1938-06-24","last":"1938-08-15","longest_streak":1},{"threshold":"tmax_ge_35c","year":1936,"days":6,"first":"1936-07-08","last":"1936-07-13","longest_streak":6},{"threshold":"tmax_ge_90f","year":1936,"days":7,"first":"1936-07-08","last":"1936-08-03","longest_streak":6},{"threshold":"tmax_ge_90f","year":1937,"days":3,"first":"1937-07-08","last":"1937-08-06","longest_streak":1},{"threshold":"tmax_ge_90f","year":1938,"days":1,"first":"1938-07-08","last":"1938-07-08","longest_streak":1},{"threshold":"tmax_ge_100f","year":1936,"days":1,"first":"1936-07-10","last":"1936-07-10","longest_streak":1},{"threshold":"tmax_le_0c","year":1935,"days":91,"first":"1935-01-01","last":"1935-12-31","longest_streak":31},{"threshold":"tmax_le_0c","year":1936,"days":102,"first":"1936-01-01","last":"1936-12-29","longest_streak":22},{"threshold":"tmax_le_0c","year":1937,"days":83,"first":"1937-01-04","last":"1937-12-31","longest_streak":20},{"threshold":"tmax_le_0c","year":1938,"days":93,"first":"1938-01-03","last":"1938-12-31","longest_streak":20},{"threshold":"tmin_le_0c","year":1935,"days":173,"first":"1935-01-01","last":"1935-12-31","longest_streak":105},{"threshold":"tmin_le_0c","year":1936,"days":182,"first":"1936-01-01","last":"1936-12-31","longest_streak":33},{"threshold":"tmin_le_0c","year":1937,"days":170,"first":"1937-01-01","last":"1937-12-31","longest_streak":42},{"threshold":"tmin_le_0c","year":1938,"days":160,"first":"1938-01-03","last":"1938-12-31","longest_streak":79},{"threshold":"tmin_le_m10c","year":1935,"days":58,"first":"1935-01-01","last":"1935-12-31","longest_streak":14},{"threshold":"tmin_le_m10c","year":1936,"days":73,"first":"1936-01-01","last":"1936-12-24","longest_streak":39},{"threshold":"tmin_le_m10c","year":1937,"days":55,"first":"1937-01-05","last":"1937-12-30","longest_streak":8},{"threshold":"tmin_le_m10c","year":1938,"days":59,"first":"1938-01-03","last":"1938-12-31","longest_streak":9},{"threshold":"tmin_le_m20c","year":1935,"days":18,"first":"1935-01-04","last":"1935-12-31","longest_streak":2},{"threshold":"tmin_le_m20c","year":1936,"days":27,"first":"1936-01-17","last":"1936-12-01","longest_streak":6},{"threshold":"tmin_le_m20c","year":1937,"days":3,"first":"1937-12-12","last":"1937-12-14","longest_streak":3},{"threshold":"tmin_le_m20c","year":1938,"days":11,"first":"1938-01-11","last":"1938-12-30","longest_streak":4},{"threshold":"tmin_le_m30c","year":1935,"days":3,"first":"1935-01-30","last":"1935-02-27","longest_streak":1},{"threshold":"tmin_le_m30c","year":1936,"days":2,"first":"1936-02-22","last":"1936-12-01","longest_streak":1},{"threshold":"tmin_ge_20c","year":1935,"days":5,"first":"1935-06-02","last":"1935-08-12","longest_streak":1},{"threshold":"tmin_ge_20c","year":1936,"days":8,"first":"1936-05-09","last":"1936-07-14","longest_streak":2},{"threshold":"tmin_ge_20c","year":1937,"days":3,"first":"1937-07-11","last":"1937-09-03","longest_streak":1},{"threshold":"tmin_ge_20c","year":1938,"days":2,"first":"1938-08-04","last":"1938-08-17","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1911,"days":27,"first":"1911-01-02","last":"1911-12-29","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1912,"days":30,"first":"1912-01-01","last":"1912-12-02","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1913,"days":26,"first":"1913-01-06","last":"1913-11-19","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1914,"days":17,"first":"1914-02-07","last":"1914-11-19","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1916,"days":22,"first":"1916-01-02","last":"1916-12-05","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1935,"days":18,"first":"1935-01-01","last":"1935-11-04","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1936,"days":20,"first":"1936-01-04","last":"1936-12-27","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1937,"days":22,"first":"1937-01-07","last":"1937-12-07","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1938,"days":24,"first":"1938-01-24","last":"1938-12-27","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1911,"days":2,"first":"1911-10-18","last":"1911-11-07","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1912,"days":9,"first":"1912-05-21","last":"1912-11-07","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1913,"days":2,"first":"1913-03-24","last":"1913-04-04","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1914,"days":1,"first":"1914-09-02","last":"1914-09-02","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1916,"days":1,"first":"1916-04-22","last":"1916-04-22","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1935,"days":5,"first":"1935-05-28","last":"1935-11-04","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1936,"days":4,"first":"1936-06-01","last":"1936-12-26","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1937,"days":5,"first":"1937-01-08","last":"1937-10-18","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1938,"days":2,"first":"1938-09-21","last":"1938-09-22","longest_streak":2},{"threshold":"prcp_ge_50mm","year":1935,"days":1,"first":"1935-11-04","last":"1935-11-04","longest_streak":1},{"threshold":"snow_ge_10cm","year":1911,"days":2,"first":"1911-02-07","last":"1911-12-29","longest_streak":1},{"threshold":"snow_ge_10cm","year":1912,"days":4,"first":"1912-01-01","last":"1912-03-16","longest_streak":1},{"threshold":"snow_ge_10cm","year":1914,"days":2,"first":"1914-02-07","last":"1914-11-19","longest_streak":1},{"threshold":"snow_ge_10cm","year":1916,"days":2,"first":"1916-03-07","last":"1916-03-10","longest_streak":1},{"threshold":"snow_ge_10cm","year":1935,"days":2,"first":"1935-01-01","last":"1935-01-17","longest_streak":1},{"threshold":"snow_ge_10cm","year":1936,"days":4,"first":"1936-01-04","last":"1936-12-20","longest_streak":1},{"threshold":"snow_ge_10cm","year":1937,"days":1,"first":"1937-12-07","last":"1937-12-07","longest_streak":1},{"threshold":"snow_ge_10cm","year":1938,"days":2,"first":"1938-04-08","last":"1938-12-27","longest_streak":1}]}