{"title":"Frederick: threshold days by year","description":"Days at or beyond each fixed threshold at Frederick, by year.","dataAsOf":"2026-10-16T00:00:00Z","lastRevised":"2026-10-17","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/USC00393129/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":"tmin_le_0c","year":1907,"days":209,"first":"1907-01-02","last":"1907-12-31","longest_streak":57},{"threshold":"tmin_le_m10c","year":1907,"days":103,"first":"1907-01-02","last":"1907-12-31","longest_streak":38},{"threshold":"tmin_le_m20c","year":1907,"days":32,"first":"1907-01-07","last":"1907-12-31","longest_streak":9},{"threshold":"tmin_le_m30c","year":1907,"days":10,"first":"1907-01-09","last":"1907-02-05","longest_streak":3},{"threshold":"tmin_ge_20c","year":1907,"days":3,"first":"1907-07-04","last":"1907-08-10","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1907,"days":14,"first":"1907-01-02","last":"1907-09-30","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1908,"days":24,"first":"1908-01-31","last":"1908-12-16","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1909,"days":9,"first":"1909-02-10","last":"1909-09-02","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1952,"days":10,"first":"1952-01-14","last":"1952-11-18","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1953,"days":20,"first":"1953-02-10","last":"1953-11-20","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1956,"days":13,"first":"1956-03-27","last":"1956-11-02","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1957,"days":22,"first":"1957-04-19","last":"1957-11-01","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1908,"days":8,"first":"1908-05-14","last":"1908-11-23","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1909,"days":2,"first":"1909-05-23","last":"1909-07-11","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1952,"days":1,"first":"1952-11-18","last":"1952-11-18","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1953,"days":6,"first":"1953-03-14","last":"1953-08-03","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1956,"days":2,"first":"1956-05-28","last":"1956-10-30","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1957,"days":8,"first":"1957-04-19","last":"1957-10-15","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1908,"days":1,"first":"1908-05-14","last":"1908-05-14","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1909,"days":2,"first":"1909-05-23","last":"1909-07-11","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1953,"days":2,"first":"1953-04-30","last":"1953-06-20","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1957,"days":3,"first":"1957-07-30","last":"1957-10-15","longest_streak":1},{"threshold":"snow_ge_10cm","year":1952,"days":4,"first":"1952-01-14","last":"1952-02-19","longest_streak":2},{"threshold":"snow_ge_10cm","year":1953,"days":2,"first":"1953-03-07","last":"1953-11-20","longest_streak":1}]}