{"title":"Records on 08-21 in past years","description":"Record events on 08-21 across the years in the data.","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/on-this-day/08-21/","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":"USC00338534-2007-08-21-prcp_high-all-time","station_id":"USC00338534","station_name":"Upper Sandusky","country":"US","type":"prcp_high","timescale":"all-time","date":"2007-08-21","value":237.5,"unit":"mm","previous_value":139.4,"previous_date":"1937-06-21","margin":98.1,"years_stood":70,"significance":91,"tie":false,"provisional":false,"lat":40.8333,"lon":-83.2833},{"id":"USC00360867-1999-08-21-prcp_high-all-time","station_id":"USC00360867","station_name":"Bradford Cntrl Fs","country":"US","type":"prcp_high","timescale":"all-time","date":"1999-08-21","value":141.2,"unit":"mm","previous_value":101.6,"previous_date":"1921-09-17","margin":39.6,"years_stood":77,"significance":90,"tie":false,"provisional":false,"lat":41.95,"lon":-78.65},{"id":"USC00049200-2003-08-21-prcp_high-monthly","station_id":"USC00049200","station_name":"Vacaville","country":"US","type":"prcp_high","timescale":"monthly","date":"2003-08-21","value":29.2,"unit":"mm","previous_value":9.9,"previous_date":"1916-08-14","margin":19.3,"years_stood":87,"significance":86,"tie":false,"provisional":false,"lat":38.3956,"lon":-121.9608},{"id":"USC00040798-2023-08-21-prcp_high-monthly","station_id":"USC00040798","station_name":"Big Tujunga Dam Fc46","country":"US","type":"prcp_high","timescale":"monthly","date":"2023-08-21","value":122.7,"unit":"mm","previous_value":31.8,"previous_date":"1942-08-10","margin":90.9,"years_stood":81,"significance":83,"tie":false,"provisional":false,"lat":34.2947,"lon":-118.1886},{"id":"USC00334874-2007-08-21-prcp_high-all-time","station_id":"USC00334874","station_name":"Mansfield 5 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Lake","country":"US","type":"prcp_high","timescale":"daily","date":"2017-08-21","value":127,"unit":"mm","previous_value":51.6,"previous_date":"1896-08-21","margin":75.4,"years_stood":120,"significance":80,"tie":false,"provisional":false,"lat":43.4228,"lon":-95.1389},{"id":"ASN00059000-2007-08-21-prcp_high-daily","station_id":"ASN00059000","station_name":"Bellbrook (East Street)","country":"AU","type":"prcp_high","timescale":"daily","date":"2007-08-21","value":179,"unit":"mm","previous_value":24.9,"previous_date":"1892-08-21","margin":154.1,"years_stood":114,"significance":80,"tie":false,"provisional":false,"lat":-30.8141,"lon":152.5129},{"id":"ASN00059017-2007-08-21-prcp_high-daily","station_id":"ASN00059017","station_name":"Kempsey (Wide Street)","country":"AU","type":"prcp_high","timescale":"daily","date":"2007-08-21","value":129.4,"unit":"mm","previous_value":20.3,"previous_date":"1892-08-21","margin":109.1,"years_stood":114,"significance":80,"tie":false,"provisional":false,"lat":-31.077,"lon":152.8235},{"id":"ASN00060035-2007-08-21-prcp_high-daily","station_id":"ASN00060035","station_name":"Wauchope (Avondale Street)","country":"AU","type":"prcp_high","timescale":"daily","date":"2007-08-21","value":111,"unit":"mm","previous_value":32.3,"previous_date":"1892-08-21","margin":78.7,"years_stood":114,"significance":80,"tie":false,"provisional":false,"lat":-31.4595,"lon":152.7315},{"id":"USC00047306-2023-08-21-prcp_high-daily","station_id":"USC00047306","station_name":"Redlands","country":"US","type":"prcp_high","timescale":"daily","date":"2023-08-21","value":39.9,"unit":"mm","previous_value":6.4,"previous_date":"1913-08-21","margin":33.5,"years_stood":109,"significance":80,"tie":false,"provisional":false,"lat":34.0369,"lon":-117.1947},{"id":"ASN00060036-2007-08-21-prcp_high-daily","station_id":"ASN00060036","station_name":"Wingham (Lanark Close)","country":"AU","type":"prcp_high","timescale":"daily","date":"2007-08-21","value":132,"unit":"mm","previous_value":58.4,"previous_date":"1899-08-21","margin":73.6,"years_stood":107,"significance":80,"tie":false,"provisional":false,"lat":-31.862,"lon":152.3444},{"id":"ASN00057023-2007-08-21-prcp_high-daily","station_id":"ASN00057023","station_name":"Ebor (Wongwibinda)","country":"AU","type":"prcp_high","timescale":"daily","date":"2007-08-21","value":72.6,"unit":"mm","previous_value":20.3,"previous_date":"1902-08-21","margin":52.3,"years_stood":104,"significance":80,"tie":false,"provisional":false,"lat":-30.2892,"lon":152.1701},{"id":"SF000752150-1971-08-21-prcp_high-monthly","station_id":"SF000752150","station_name":"Pearston 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(Woolmit)","country":"AU","type":"prcp_high","timescale":"daily","date":"2016-08-21","value":37.4,"unit":"mm","previous_value":16.8,"previous_date":"1918-08-21","margin":20.6,"years_stood":98,"significance":79,"tie":false,"provisional":false,"lat":-37.0153,"lon":139.9612},{"id":"ASN00060015-2007-08-21-prcp_high-daily","station_id":"ASN00060015","station_name":"Gloucester Post Office","country":"AU","type":"prcp_high","timescale":"daily","date":"2007-08-21","value":74.6,"unit":"mm","previous_value":27.7,"previous_date":"1899-08-21","margin":46.9,"years_stood":107,"significance":78,"tie":false,"provisional":false,"lat":-32.0063,"lon":151.9597},{"id":"ASN00057011-2007-08-21-prcp_high-daily","station_id":"ASN00057011","station_name":"Jeogla Station","country":"AU","type":"prcp_high","timescale":"daily","date":"2007-08-21","value":92,"unit":"mm","previous_value":14.2,"previous_date":"1911-08-21","margin":77.8,"years_stood":96,"significance":78,"tie":false,"provisional":false,"lat":-30.5774,"lon":152.1099},{"id":"ASN00058038-2007-08-21-prcp_high-daily","station_id":"ASN00058038","station_name":"Maclean (McLachlan Street)","country":"AU","type":"prcp_high","timescale":"daily","date":"2007-08-21","value":148,"unit":"mm","previous_value":27.9,"previous_date":"1911-08-21","margin":120.1,"years_stood":96,"significance":78,"tie":false,"provisional":false,"lat":-29.4521,"lon":153.2007},{"id":"USC00046252-2023-08-21-prcp_high-daily","station_id":"USC00046252","station_name":"N Fk 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