{"title":"Records on 1889-12-18","description":"Every record set or tied on 1889-12-18.","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/1889-12-18/","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":"CA006158350-1889-12-18-tmin_high-daily","station_id":"CA006158350","station_name":"Toronto","country":"CA","type":"tmin_high","timescale":"daily","date":"1889-12-18","value":3.3,"unit":"c","previous_value":0,"previous_date":"1848-12-18","margin":3.3,"years_stood":40,"significance":22,"tie":false,"provisional":false,"lat":43.6667,"lon":-79.4},{"id":"USP00381549-1889-12-18-tmax_high-daily","station_id":"USP00381549","station_name":"Charleston","country":"US","type":"tmax_high","timescale":"daily","date":"1889-12-18","value":23.3,"unit":"c","previous_value":20.6,"previous_date":"1848-12-18","margin":2.7,"years_stood":40,"significance":21,"tie":false,"provisional":false,"lat":32.7792,"lon":-79.9347},{"id":"SWE00139148-1889-12-18-tmin_high-daily","station_id":"SWE00139148","station_name":"Uppsala_Aut","country":"SE","type":"tmin_high","timescale":"daily","date":"1889-12-18","value":2.4,"unit":"c","previous_value":2.1,"previous_date":"1841-12-18","margin":0.3,"years_stood":48,"significance":19,"tie":false,"provisional":false,"lat":59.86,"lon":17.63},{"id":"CA006158350-1889-12-18-tmax_high-daily","station_id":"CA006158350","station_name":"Toronto","country":"CA","type":"tmax_high","timescale":"daily","date":"1889-12-18","value":7.8,"unit":"c","previous_value":6.1,"previous_date":"1861-12-18","margin":1.7,"years_stood":28,"significance":16,"tie":false,"provisional":false,"lat":43.6667,"lon":-79.4}]}