{"title":"Records on 1904-08-21","description":"Every record set or tied on 1904-08-21.","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/1904-08-21/","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":"CA008202198-1904-08-21-prcp_high-daily","station_id":"CA008202198","station_name":"Halifax","country":"CA","type":"prcp_high","timescale":"daily","date":"1904-08-21","value":62,"unit":"mm","previous_value":25.7,"previous_date":"1887-08-21","margin":36.3,"years_stood":16,"significance":40,"tie":false,"provisional":false,"lat":44.65,"lon":-63.6},{"id":"CA008205988-1904-08-21-prcp_high-daily","station_id":"CA008205988","station_name":"Truro","country":"CA","type":"prcp_high","timescale":"daily","date":"1904-08-21","value":52.1,"unit":"mm","previous_value":21.1,"previous_date":"1894-08-21","margin":31,"years_stood":9,"significance":34,"tie":false,"provisional":false,"lat":45.35,"lon":-63.3},{"id":"CA008204420-1904-08-21-prcp_high-daily","station_id":"CA008204420","station_name":"Pictou","country":"CA","type":"prcp_high","timescale":"daily","date":"1904-08-21","value":47.2,"unit":"mm","previous_value":22.9,"previous_date":"1893-08-21","margin":24.3,"years_stood":10,"significance":26,"tie":false,"provisional":false,"lat":45.7,"lon":-62.6833},{"id":"CA008100990-1904-08-21-prcp_high-daily","station_id":"CA008100990","station_name":"Chatham","country":"CA","type":"prcp_high","timescale":"daily","date":"1904-08-21","value":33,"unit":"mm","previous_value":25.9,"previous_date":"1881-08-21","margin":7.1,"years_stood":22,"significance":16,"tie":false,"provisional":false,"lat":47.05,"lon":-65.4833},{"id":"CA008300298-1904-08-21-prcp_high-daily","station_id":"CA008300298","station_name":"Charlottetown","country":"CA","type":"prcp_high","timescale":"daily","date":"1904-08-21","value":39.9,"unit":"mm","previous_value":32.5,"previous_date":"1894-08-21","margin":7.4,"years_stood":9,"significance":12,"tie":false,"provisional":false,"lat":46.2333,"lon":-63.1667},{"id":"GLE00100981-1904-08-21-prcp_high-daily","station_id":"GLE00100981","station_name":"Ilulissat (Jakobshavn)","country":"GL","type":"prcp_high","timescale":"daily","date":"1904-08-21","value":3.7,"unit":"mm","previous_value":3.4,"previous_date":"1900-08-21","margin":0.3,"years_stood":4,"significance":4,"tie":false,"provisional":false,"lat":69.2167,"lon":-51.05},{"id":"CA008104800-1904-08-21-prcp_high-monthly","station_id":"CA008104800","station_name":"Saint John","country":"CA","type":"prcp_high","timescale":"monthly","date":"1904-08-21","value":91.9,"unit":"mm","previous_value":91.9,"previous_date":"1895-08-18","margin":0,"years_stood":9,"significance":3,"tie":true,"provisional":false,"lat":45.2833,"lon":-66.0833},{"id":"EIE00101859-1904-08-21-tmax_low-daily","station_id":"EIE00101859","station_name":"Galway","country":"IE","type":"tmax_low","timescale":"daily","date":"1904-08-21","value":16.7,"unit":"c","previous_value":16.7,"previous_date":"1891-08-21","margin":0,"years_stood":12,"significance":1,"tie":true,"provisional":false,"lat":53.28,"lon":-9.02}]}