{"title":"Records on 1912-05-20","description":"Every record set or tied on 1912-05-20.","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/1912-05-20/","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":"CA006127887-1912-05-20-prcp_high-daily","station_id":"CA006127887","station_name":"Southampton","country":"CA","type":"prcp_high","timescale":"daily","date":"1912-05-20","value":42.2,"unit":"mm","previous_value":21.8,"previous_date":"1878-05-20","margin":20.4,"years_stood":33,"significance":44,"tie":false,"provisional":false,"lat":44.5,"lon":-81.3667},{"id":"CA006149625-1912-05-20-prcp_high-daily","station_id":"CA006149625","station_name":"Woodstock","country":"CA","type":"prcp_high","timescale":"daily","date":"1912-05-20","value":35.8,"unit":"mm","previous_value":17.8,"previous_date":"1876-05-20","margin":18,"years_stood":35,"significance":36,"tie":false,"provisional":false,"lat":43.1333,"lon":-80.7667},{"id":"RSM00027459-1912-05-20-prcp_high-daily","station_id":"RSM00027459","station_name":"Niznij 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