{"title":"Records on 1911-08-17","description":"Every record set or tied on 1911-08-17.","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/1911-08-17/","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":"CA007050200-1911-08-17-prcp_high-daily","station_id":"CA007050200","station_name":"Anticosti SW Point","country":"CA","type":"prcp_high","timescale":"daily","date":"1911-08-17","value":53.3,"unit":"mm","previous_value":25.4,"previous_date":"1877-08-17","margin":27.9,"years_stood":33,"significance":40,"tie":false,"provisional":false,"lat":49.4,"lon":-63.55},{"id":"UK000047811-1911-08-17-tmax_high-daily","station_id":"UK000047811","station_name":"Armagh","country":"GB","type":"tmax_high","timescale":"daily","date":"1911-08-17","value":25.1,"unit":"c","previous_value":24.8,"previous_date":"1855-08-17","margin":0.3,"years_stood":55,"significance":23,"tie":false,"provisional":false,"lat":54.35,"lon":-6.65},{"id":"CE000043497-1911-08-17-tmax_high-monthly","station_id":"CE000043497","station_name":"Hambantota","country":"LK","type":"tmax_high","timescale":"monthly","date":"1911-08-17","value":36.8,"unit":"c","previous_value":36.5,"previous_date":"1890-08-14","margin":0.3,"years_stood":21,"significance":21,"tie":false,"provisional":false,"lat":6.117,"lon":81.133},{"id":"EIE00101859-1911-08-17-tmax_high-daily","station_id":"EIE00101859","station_name":"Galway","country":"IE","type":"tmax_high","timescale":"daily","date":"1911-08-17","value":28.9,"unit":"c","previous_value":28.3,"previous_date":"1870-08-17","margin":0.6,"years_stood":40,"significance":19,"tie":false,"provisional":false,"lat":53.28,"lon":-9.02},{"id":"RSM00027857-1911-08-17-prcp_high-daily","station_id":"RSM00027857","station_name":"Zametchino","country":"RU","type":"prcp_high","timescale":"daily","date":"1911-08-17","value":13.6,"unit":"mm","previous_value":7.4,"previous_date":"1886-08-17","margin":6.2,"years_stood":24,"significance":19,"tie":false,"provisional":false,"lat":53.5,"lon":42.62},{"id":"RSM00026063-1911-08-17-prcp_high-daily","station_id":"RSM00026063","station_name":"St. Petersburg","country":"RU","type":"prcp_high","timescale":"daily","date":"1911-08-17","value":16.6,"unit":"mm","previous_value":12.6,"previous_date":"1881-08-17","margin":4,"years_stood":29,"significance":16,"tie":false,"provisional":false,"lat":59.9667,"lon":30.3},{"id":"USW00013724-1911-08-17-tmax_high-daily","station_id":"USW00013724","station_name":"Atlantic City Marina","country":"US","type":"tmax_high","timescale":"daily","date":"1911-08-17","value":33.3,"unit":"c","previous_value":30.6,"previous_date":"1904-08-17","margin":2.7,"years_stood":6,"significance":15,"tie":false,"provisional":false,"lat":39.3778,"lon":-74.4236},{"id":"USW00013777-1911-08-17-tmax_high-daily","station_id":"USW00013777","station_name":"Baltimore Customs House","country":"US","type":"tmax_high","timescale":"daily","date":"1911-08-17","value":35.6,"unit":"c","previous_value":33.3,"previous_date":"1898-08-17","margin":2.3,"years_stood":12,"significance":13,"tie":false,"provisional":false,"lat":39.2833,"lon":-76.6167},{"id":"RSM00026477-1911-08-17-tmin_low-daily","station_id":"RSM00026477","station_name":"Velikie Luki","country":"RU","type":"tmin_low","timescale":"daily","date":"1911-08-17","value":7.1,"unit":"c","previous_value":7.9,"previous_date":"1885-08-17","margin":0.8,"years_stood":25,"significance":12,"tie":false,"provisional":false,"lat":56.35,"lon":30.6167},{"id":"SWE00137910-1911-08-17-prcp_high-daily","station_id":"SWE00137910","station_name":"Hoburg","country":"SE","type":"prcp_high","timescale":"daily","date":"1911-08-17","value":3.2,"unit":"mm","previous_value":2.7,"previous_date":"1894-08-17","margin":0.5,"years_stood":16,"significance":8,"tie":false,"provisional":false,"lat":56.92,"lon":18.1664},{"id":"USW00013724-1911-08-17-tmin_high-daily","station_id":"USW00013724","station_name":"Atlantic City Marina","country":"US","type":"tmin_high","timescale":"daily","date":"1911-08-17","value":23.3,"unit":"c","previous_value":22.8,"previous_date":"1895-08-17","margin":0.5,"years_stood":15,"significance":8,"tie":false,"provisional":false,"lat":39.3778,"lon":-74.4236},{"id":"USC00338366-1911-08-17-tmin_high-daily","station_id":"USC00338366","station_name":"Toledo Blade","country":"US","type":"tmin_high","timescale":"daily","date":"1911-08-17","value":22.2,"unit":"c","previous_value":21.1,"previous_date":"1906-08-17","margin":1.1,"years_stood":4,"significance":7,"tie":false,"provisional":false,"lat":41.65,"lon":-83.5333},{"id":"CA006158350-1911-08-17-tmax_high-daily","station_id":"CA006158350","station_name":"Toronto","country":"CA","type":"tmax_high","timescale":"daily","date":"1911-08-17","value":30.6,"unit":"c","previous_value":30.6,"previous_date":"1853-08-17","margin":0,"years_stood":57,"significance":6,"tie":true,"provisional":false,"lat":43.6667,"lon":-79.4},{"id":"CA007050200-1911-08-17-tmin_low-monthly","station_id":"CA007050200","station_name":"Anticosti SW 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