{"title":"Records on 1904-09-21","description":"Every record set or tied on 1904-09-21.","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/records/1904-09-21/","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":"BE000006447-1904-09-21-tmin_low-monthly","station_id":"BE000006447","station_name":"Uccle","country":"BE","type":"tmin_low","timescale":"monthly","date":"1904-09-21","value":1.7,"unit":"c","previous_value":1.8,"previous_date":"1837-09-27","margin":0.1,"years_stood":66,"significance":37,"tie":false,"provisional":false,"lat":50.8,"lon":4.35},{"id":"ITE00100550-1904-09-21-tmin_low-daily","station_id":"ITE00100550","station_name":"Bologna","country":"IT","type":"tmin_low","timescale":"daily","date":"1904-09-21","value":8.1,"unit":"c","previous_value":8.9,"previous_date":"1856-09-21","margin":0.8,"years_stood":47,"significance":25,"tie":false,"provisional":false,"lat":44.5,"lon":11.3458},{"id":"EIE00101859-1904-09-21-tmax_high-daily","station_id":"EIE00101859","station_name":"Galway","country":"IE","type":"tmax_high","timescale":"daily","date":"1904-09-21","value":21.1,"unit":"c","previous_value":20,"previous_date":"1865-09-21","margin":1.1,"years_stood":38,"significance":19,"tie":false,"provisional":false,"lat":53.28,"lon":-9.02},{"id":"AU000005901-1904-09-21-tmax_low-daily","station_id":"AU000005901","station_name":"Wien","country":"AT","type":"tmax_low","timescale":"daily","date":"1904-09-21","value":10.2,"unit":"c","previous_value":11.2,"previous_date":"1872-09-21","margin":1,"years_stood":31,"significance":16,"tie":false,"provisional":false,"lat":48.2331,"lon":16.35},{"id":"CA006104185-1904-09-21-tmax_low-daily","station_id":"CA006104185","station_name":"Kingston 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