{"title":"Treelon: threshold days by year","description":"Days at or beyond each fixed threshold at Treelon, 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/CA004038116/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":1972,"days":26,"first":"1972-05-31","last":"1972-08-29","longest_streak":5},{"threshold":"tmax_ge_30c","year":1973,"days":33,"first":"1973-06-13","last":"1973-08-30","longest_streak":6},{"threshold":"tmax_ge_30c","year":1974,"days":19,"first":"1974-06-13","last":"1974-08-06","longest_streak":6},{"threshold":"tmax_ge_30c","year":1975,"days":18,"first":"1975-07-04","last":"1975-08-28","longest_streak":6},{"threshold":"tmax_ge_30c","year":1976,"days":20,"first":"1976-05-13","last":"1976-09-17","longest_streak":3},{"threshold":"tmax_ge_30c","year":1977,"days":18,"first":"1977-05-10","last":"1977-08-24","longest_streak":3},{"threshold":"tmax_ge_30c","year":1978,"days":19,"first":"1978-07-14","last":"1978-09-04","longest_streak":5},{"threshold":"tmax_ge_30c","year":1979,"days":31,"first":"1979-06-11","last":"1979-09-17","longest_streak":5},{"threshold":"tmax_ge_35c","year":1972,"days":4,"first":"1972-08-09","last":"1972-08-29","longest_streak":2},{"threshold":"tmax_ge_35c","year":1973,"days":7,"first":"1973-07-04","last":"1973-08-16","longest_streak":2},{"threshold":"tmax_ge_35c","year":1975,"days":4,"first":"1975-07-05","last":"1975-07-29","longest_streak":3},{"threshold":"tmax_ge_35c","year":1976,"days":2,"first":"1976-07-25","last":"1976-08-22","longest_streak":1},{"threshold":"tmax_ge_35c","year":1977,"days":2,"first":"1977-07-22","last":"1977-07-23","longest_streak":2},{"threshold":"tmax_ge_35c","year":1978,"days":3,"first":"1978-08-13","last":"1978-09-04","longest_streak":2},{"threshold":"tmax_ge_35c","year":1979,"days":4,"first":"1979-07-20","last":"1979-09-17","longest_streak":2},{"threshold":"tmax_ge_90f","year":1972,"days":10,"first":"1972-05-31","last":"1972-08-29","longest_streak":4},{"threshold":"tmax_ge_90f","year":1973,"days":18,"first":"1973-06-13","last":"1973-08-21","longest_streak":4},{"threshold":"tmax_ge_90f","year":1974,"days":9,"first":"1974-06-19","last":"1974-08-05","longest_streak":4},{"threshold":"tmax_ge_90f","year":1975,"days":12,"first":"1975-07-04","last":"1975-08-06","longest_streak":6},{"threshold":"tmax_ge_90f","year":1976,"days":7,"first":"1976-07-17","last":"1976-09-05","longest_streak":3},{"threshold":"tmax_ge_90f","year":1977,"days":10,"first":"1977-06-01","last":"1977-08-24","longest_streak":3},{"threshold":"tmax_ge_90f","year":1978,"days":10,"first":"1978-07-16","last":"1978-09-04","longest_streak":3},{"threshold":"tmax_ge_90f","year":1979,"days":11,"first":"1979-06-12","last":"1979-09-17","longest_streak":3},{"threshold":"tmax_ge_100f","year":1973,"days":1,"first":"1973-08-01","last":"1973-08-01","longest_streak":1},{"threshold":"tmax_le_0c","year":1972,"days":102,"first":"1972-01-01","last":"1972-12-31","longest_streak":25},{"threshold":"tmax_le_0c","year":1973,"days":68,"first":"1973-01-02","last":"1973-12-31","longest_streak":20},{"threshold":"tmax_le_0c","year":1974,"days":59,"first":"1974-01-01","last":"1974-12-31","longest_streak":5},{"threshold":"tmax_le_0c","year":1975,"days":97,"first":"1975-01-02","last":"1975-12-31","longest_streak":25},{"threshold":"tmax_le_0c","year":1976,"days":68,"first":"1976-01-01","last":"1976-12-31","longest_streak":10},{"threshold":"tmax_le_0c","year":1977,"days":73,"first":"1977-01-01","last":"1977-12-31","longest_streak":68},{"threshold":"tmax_le_0c","year":1978,"days":112,"first":"1978-01-01","last":"1978-12-31","longest_streak":65},{"threshold":"tmax_le_0c","year":1979,"days":86,"first":"1979-01-01","last":"1979-12-24","longest_streak":6},{"threshold":"tmin_le_0c","year":1972,"days":206,"first":"1972-01-01","last":"1972-12-31","longest_streak":97},{"threshold":"tmin_le_0c","year":1973,"days":197,"first":"1973-01-01","last":"1973-12-31","longest_streak":63},{"threshold":"tmin_le_0c","year":1974,"days":195,"first":"1974-01-01","last":"1974-12-31","longest_streak":149},{"threshold":"tmin_le_0c","year":1975,"days":195,"first":"1975-01-01","last":"1975-12-31","longest_streak":55},{"threshold":"tmin_le_0c","year":1976,"days":197,"first":"1976-01-01","last":"1976-12-31","longest_streak":66},{"threshold":"tmin_le_0c","year":1977,"days":184,"first":"1977-01-01","last":"1977-12-31","longest_streak":146},{"threshold":"tmin_le_0c","year":1978,"days":159,"first":"1978-01-01","last":"1978-12-31","longest_streak":102},{"threshold":"tmin_le_0c","year":1979,"days":199,"first":"1979-01-01","last":"1979-12-31","longest_streak":107},{"threshold":"tmin_le_m10c","year":1972,"days":98,"first":"1972-01-01","last":"1972-12-31","longest_streak":25},{"threshold":"tmin_le_m10c","year":1973,"days":75,"first":"1973-01-01","last":"1973-12-31","longest_streak":20},{"threshold":"tmin_le_m10c","year":1974,"days":83,"first":"1974-01-01","last":"1974-12-31","longest_streak":18},{"threshold":"tmin_le_m10c","year":1975,"days":111,"first":"1975-01-01","last":"1975-12-31","longest_streak":26},{"threshold":"tmin_le_m10c","year":1976,"days":75,"first":"1976-01-01","last":"1976-12-31","longest_streak":29},{"threshold":"tmin_le_m10c","year":1977,"days":90,"first":"1977-01-01","last":"1977-12-31","longest_streak":53},{"threshold":"tmin_le_m10c","year":1978,"days":107,"first":"1978-01-01","last":"1978-12-31","longest_streak":58},{"threshold":"tmin_le_m10c","year":1979,"days":101,"first":"1979-01-01","last":"1979-12-31","longest_streak":8},{"threshold":"tmin_le_m20c","year":1972,"days":49,"first":"1972-01-03","last":"1972-12-16","longest_streak":11},{"threshold":"tmin_le_m20c","year":1973,"days":26,"first":"1973-01-02","last":"1973-12-31","longest_streak":18},{"threshold":"tmin_le_m20c","year":1974,"days":23,"first":"1974-01-01","last":"1974-12-24","longest_streak":5},{"threshold":"tmin_le_m20c","year":1975,"days":38,"first":"1975-01-09","last":"1975-12-17","longest_streak":11},{"threshold":"tmin_le_m20c","year":1976,"days":23,"first":"1976-01-01","last":"1976-12-31","longest_streak":8},{"threshold":"tmin_le_m20c","year":1977,"days":38,"first":"1977-01-01","last":"1977-12-31","longest_streak":10},{"threshold":"tmin_le_m20c","year":1978,"days":49,"first":"1978-01-01","last":"1978-12-31","longest_streak":13},{"threshold":"tmin_le_m20c","year":1979,"days":53,"first":"1979-01-01","last":"1979-12-16","longest_streak":23},{"threshold":"tmin_le_m30c","year":1972,"days":16,"first":"1972-01-13","last":"1972-12-09","longest_streak":7},{"threshold":"tmin_le_m30c","year":1973,"days":3,"first":"1973-01-07","last":"1973-12-31","longest_streak":1},{"threshold":"tmin_le_m30c","year":1974,"days":5,"first":"1974-01-08","last":"1974-01-12","longest_streak":5},{"threshold":"tmin_le_m30c","year":1975,"days":7,"first":"1975-01-10","last":"1975-12-17","longest_streak":2},{"threshold":"tmin_le_m30c","year":1976,"days":3,"first":"1976-01-08","last":"1976-03-04","longest_streak":2},{"threshold":"tmin_le_m30c","year":1977,"days":6,"first":"1977-01-16","last":"1977-12-10","longest_streak":3},{"threshold":"tmin_le_m30c","year":1978,"days":1,"first":"1978-11-21","last":"1978-11-21","longest_streak":1},{"threshold":"tmin_le_m30c","year":1979,"days":14,"first":"1979-01-01","last":"1979-12-16","longest_streak":4},{"threshold":"tmin_le_m40c","year":1972,"days":1,"first":"1972-01-14","last":"1972-01-14","longest_streak":1},{"threshold":"tmin_le_m40c","year":1977,"days":2,"first":"1977-12-09","last":"1977-12-10","longest_streak":2},{"threshold":"tmin_ge_20c","year":1973,"days":1,"first":"1973-07-11","last":"1973-07-11","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1972,"days":9,"first":"1972-01-09","last":"1972-12-01","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1973,"days":8,"first":"1973-04-19","last":"1973-11-18","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1974,"days":9,"first":"1974-04-26","last":"1974-08-14","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1975,"days":14,"first":"1975-04-04","last":"1975-10-13","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1976,"days":5,"first":"1976-06-10","last":"1976-11-24","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1977,"days":10,"first":"1977-05-15","last":"1977-12-06","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1978,"days":14,"first":"1978-01-03","last":"1978-12-27","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1979,"days":5,"first":"1979-02-10","last":"1979-10-19","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1983,"days":5,"first":"1983-05-09","last":"1983-07-10","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1972,"days":1,"first":"1972-09-23","last":"1972-09-23","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1973,"days":1,"first":"1973-08-23","last":"1973-08-23","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1974,"days":5,"first":"1974-05-12","last":"1974-08-08","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1975,"days":5,"first":"1975-04-26","last":"1975-10-13","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1976,"days":1,"first":"1976-06-21","last":"1976-06-21","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1977,"days":1,"first":"1977-09-30","last":"1977-09-30","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1978,"days":1,"first":"1978-09-12","last":"1978-09-12","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1979,"days":1,"first":"1979-07-03","last":"1979-07-03","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1983,"days":1,"first":"1983-07-10","last":"1983-07-10","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1979,"days":1,"first":"1979-07-03","last":"1979-07-03","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1983,"days":1,"first":"1983-07-10","last":"1983-07-10","longest_streak":1},{"threshold":"snow_ge_10cm","year":1972,"days":3,"first":"1972-01-09","last":"1972-12-01","longest_streak":1},{"threshold":"snow_ge_10cm","year":1973,"days":1,"first":"1973-11-18","last":"1973-11-18","longest_streak":1},{"threshold":"snow_ge_10cm","year":1974,"days":1,"first":"1974-05-20","last":"1974-05-20","longest_streak":1},{"threshold":"snow_ge_10cm","year":1975,"days":2,"first":"1975-04-04","last":"1975-04-07","longest_streak":1},{"threshold":"snow_ge_10cm","year":1976,"days":1,"first":"1976-11-24","last":"1976-11-24","longest_streak":1},{"threshold":"snow_ge_10cm","year":1977,"days":2,"first":"1977-12-02","last":"1977-12-06","longest_streak":1},{"threshold":"snow_ge_10cm","year":1978,"days":4,"first":"1978-01-03","last":"1978-12-27","longest_streak":1},{"threshold":"snow_ge_10cm","year":1979,"days":1,"first":"1979-02-10","last":"1979-02-10","longest_streak":1}]}