{"title":"United States: highest significance records","description":"The highest significance records in United States in the data.","dataAsOf":"2026-10-14T00:00:00Z","lastRevised":"2026-10-15","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/countries/us/records/","columns":[{"name":"id","description":"Stable record id: station, date, type and timescale."},{"name":"station_id","description":"GHCN-Daily station id."},{"name":"station_name","description":"Station name."},{"name":"country","description":"ISO 3166 alpha-2 country code."},{"name":"type","description":"Record type: tmax_high, tmax_low, tmin_high, tmin_low, prcp_high, snow_high or snwd_high."},{"name":"timescale","description":"daily, monthly or all-time."},{"name":"date","description":"Date the record was set, YYYY-MM-DD."},{"name":"value","description":"Record value in degrees Celsius or millimetres."},{"name":"unit","description":"c for degrees Celsius, mm for millimetres."},{"name":"previous_value","description":"The record it replaced, in the same unit. Empty for a first record."},{"name":"previous_date","description":"Date of the replaced record."},{"name":"margin","description":"How far the new value beat the old record, a non negative magnitude in the same unit. Zero for a tie."},{"name":"years_stood","description":"Whole years the replaced record had stood."},{"name":"significance","description":"Record Significance Score from 0 to 100 (see /methodology/)."},{"name":"tie","description":"True when the value tied the record."},{"name":"provisional","description":"True while the record is inside the 60 day provisional window."},{"name":"lat","description":"Station latitude in decimal degrees."},{"name":"lon","description":"Station longitude in decimal degrees."}],"rows":[{"id":"USC00105275-2026-03-03-prcp_high-monthly","station_id":"USC00105275","station_name":"Lifton Pumping STN","country":"US","type":"prcp_high","timescale":"monthly","date":"2026-03-03","value":33,"unit":"mm","previous_value":20.3,"previous_date":"1928-03-25","margin":12.7,"years_stood":97,"significance":89,"tie":false,"provisional":false,"lat":42.1231,"lon":-111.3133},{"id":"USC00148235-2026-10-01-prcp_high-monthly","station_id":"USC00148235","station_name":"Tribune 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6S","country":"US","type":"prcp_high","timescale":"monthly","date":"2026-01-28","value":62.2,"unit":"mm","previous_value":26.7,"previous_date":"1941-01-11","margin":35.5,"years_stood":85,"significance":85,"tie":false,"provisional":false,"lat":32.7547,"lon":-104.3836},{"id":"USC00470265-2026-03-16-snow_high-all-time","station_id":"USC00470265","station_name":"Appleton","country":"US","type":"snow_high","timescale":"all-time","date":"2026-03-16","value":462,"unit":"mm","previous_value":356,"previous_date":"1909-12-12","margin":106,"years_stood":116,"significance":84,"tie":false,"provisional":false,"lat":44.2769,"lon":-88.4378},{"id":"USC00331404-2026-02-06-snow_high-all-time","station_id":"USC00331404","station_name":"Centerburg 2 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Nest","country":"US","type":"prcp_high","timescale":"monthly","date":"2026-09-30","value":55.1,"unit":"mm","previous_value":35.6,"previous_date":"1931-09-15","margin":19.5,"years_stood":95,"significance":81,"tie":false,"provisional":true,"lat":36.5575,"lon":-105.2628},{"id":"USC00241342-2026-03-14-prcp_high-monthly","station_id":"USC00241342","station_name":"Bynum 4 SSE","country":"US","type":"prcp_high","timescale":"monthly","date":"2026-03-14","value":25.4,"unit":"mm","previous_value":14.7,"previous_date":"1954-03-27","margin":10.7,"years_stood":71,"significance":81,"tie":false,"provisional":false,"lat":47.9261,"lon":-112.2919},{"id":"USC00512960-2026-02-21-prcp_high-monthly","station_id":"USC00512960","station_name":"Kalihi Rsch Site 777","country":"US","type":"prcp_high","timescale":"monthly","date":"2026-02-21","value":425.5,"unit":"mm","previous_value":221.5,"previous_date":"1955-02-23","margin":204,"years_stood":70,"significance":81,"tie":false,"provisional":false,"lat":21.3753,"lon":-157.8222},{"id":"USC00476398-2026-01-05-snow_high-monthly","station_id":"USC00476398","station_name":"Park Falls Dnr 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