{"title":"Records on 1909-08-17","description":"Every record set or tied on 1909-08-17.","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/1909-08-17/","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":"UK000056225-1909-08-17-prcp_high-daily","station_id":"UK000056225","station_name":"Oxford","country":"GB","type":"prcp_high","timescale":"daily","date":"1909-08-17","value":30,"unit":"mm","previous_value":25.5,"previous_date":"1827-08-17","margin":4.5,"years_stood":81,"significance":39,"tie":false,"provisional":false,"lat":51.7667,"lon":-1.2667},{"id":"USC00271682-1909-08-17-prcp_high-daily","station_id":"USC00271682","station_name":"Concord","country":"US","type":"prcp_high","timescale":"daily","date":"1909-08-17","value":32.3,"unit":"mm","previous_value":16.5,"previous_date":"1879-08-17","margin":15.8,"years_stood":29,"significance":24,"tie":false,"provisional":false,"lat":43.205,"lon":-71.535},{"id":"CA006139520-1909-08-17-prcp_high-daily","station_id":"CA006139520","station_name":"Windsor Riverside","country":"CA","type":"prcp_high","timescale":"daily","date":"1909-08-17","value":36.1,"unit":"mm","previous_value":22.6,"previous_date":"1887-08-17","margin":13.5,"years_stood":21,"significance":22,"tie":false,"provisional":false,"lat":42.3333,"lon":-82.9333},{"id":"GME00127486-1909-08-17-prcp_high-daily","station_id":"GME00127486","station_name":"Berlin-Dahlem (Lfag)","country":"DE","type":"prcp_high","timescale":"daily","date":"1909-08-17","value":14.5,"unit":"mm","previous_value":6.9,"previous_date":"1896-08-17","margin":7.6,"years_stood":12,"significance":20,"tie":false,"provisional":false,"lat":52.4578,"lon":13.3014},{"id":"USC00286775-1909-08-17-prcp_high-daily","station_id":"USC00286775","station_name":"Paterson","country":"US","type":"prcp_high","timescale":"daily","date":"1909-08-17","value":26.7,"unit":"mm","previous_value":18,"previous_date":"1865-08-17","margin":8.7,"years_stood":43,"significance":21,"tie":false,"provisional":false,"lat":40.9,"lon":-74.15},{"id":"ASN00040214-1909-08-17-prcp_high-daily","station_id":"ASN00040214","station_name":"Brisbane Regional Office","country":"AU","type":"prcp_high","timescale":"daily","date":"1909-08-17","value":20.1,"unit":"mm","previous_value":15.5,"previous_date":"1878-08-17","margin":4.6,"years_stood":30,"significance":17,"tie":false,"provisional":false,"lat":-27.4778,"lon":153.0306},{"id":"USC00064767-1909-08-17-prcp_high-daily","station_id":"USC00064767","station_name":"Middletown 4 W","country":"US","type":"prcp_high","timescale":"daily","date":"1909-08-17","value":46.5,"unit":"mm","previous_value":41.7,"previous_date":"1872-08-17","margin":4.8,"years_stood":36,"significance":17,"tie":false,"provisional":false,"lat":41.55,"lon":-72.7167},{"id":"USC00305816-1909-08-17-tmax_low-daily","station_id":"USC00305816","station_name":"World Trade Ctr","country":"US","type":"tmax_low","timescale":"daily","date":"1909-08-17","value":17.8,"unit":"c","previous_value":19.4,"previous_date":"1881-08-17","margin":1.6,"years_stood":27,"significance":16,"tie":false,"provisional":false,"lat":40.7106,"lon":-74.0142},{"id":"USW00013779-1909-08-17-tmax_low-daily","station_id":"USW00013779","station_name":"Philadelphia City","country":"US","type":"tmax_low","timescale":"daily","date":"1909-08-17","value":18.9,"unit":"c","previous_value":20.6,"previous_date":"1881-08-17","margin":1.7,"years_stood":27,"significance":16,"tie":false,"provisional":false,"lat":39.95,"lon":-75.15},{"id":"USW00094728-1909-08-17-tmax_low-daily","station_id":"USW00094728","station_name":"Ny City Cntrl Park","country":"US","type":"tmax_low","timescale":"daily","date":"1909-08-17","value":18.3,"unit":"c","previous_value":19.4,"previous_date":"1881-08-17","margin":1.1,"years_stood":27,"significance":15,"tie":false,"provisional":false,"lat":40.7789,"lon":-73.9692},{"id":"GM000002698-1909-08-17-tmin_high-daily","station_id":"GM000002698","station_name":"Karlsruhe","country":"DE","type":"tmin_high","timescale":"daily","date":"1909-08-17","value":19.3,"unit":"c","previous_value":18.5,"previous_date":"1876-08-17","margin":0.8,"years_stood":32,"significance":14,"tie":false,"provisional":false,"lat":49.0392,"lon":8.365},{"id":"CA006136643-1909-08-17-tmax_low-daily","station_id":"CA006136643","station_name":"Port Dover","country":"CA","type":"tmax_low","timescale":"daily","date":"1909-08-17","value":19.4,"unit":"c","previous_value":20,"previous_date":"1879-08-17","margin":0.6,"years_stood":29,"significance":12,"tie":false,"provisional":false,"lat":42.7833,"lon":-80.2167},{"id":"USW00093852-1909-08-17-tmax_high-daily","station_id":"USW00093852","station_name":"Jacksonville Wb City","country":"US","type":"tmax_high","timescale":"daily","date":"1909-08-17","value":36.1,"unit":"c","previous_value":35.6,"previous_date":"1887-08-17","margin":0.5,"years_stood":21,"significance":11,"tie":false,"provisional":false,"lat":30.3333,"lon":-81.65},{"id":"SWE00138464-1909-08-17-prcp_high-daily","station_id":"SWE00138464","station_name":"Vanersborg","country":"SE","type":"prcp_high","timescale":"daily","date":"1909-08-17","value":15.3,"unit":"mm","previous_value":14.5,"previous_date":"1899-08-17","margin":0.8,"years_stood":9,"significance":7,"tie":false,"provisional":false,"lat":58.36,"lon":12.36},{"id":"USC00034251-1909-08-17-tmin_high-all-time","station_id":"USC00034251","station_name":"Little Rock St Capitol","country":"US","type":"tmin_high","timescale":"all-time","date":"1909-08-17","value":27.2,"unit":"c","previous_value":27.2,"previous_date":"1881-08-12","margin":0,"years_stood":28,"significance":7,"tie":true,"provisional":false,"lat":34.75,"lon":-92.2833},{"id":"USW00013777-1909-08-17-tmax_low-daily","station_id":"USW00013777","station_name":"Baltimore Customs House","country":"US","type":"tmax_low","timescale":"daily","date":"1909-08-17","value":22.2,"unit":"c","previous_value":22.8,"previous_date":"1905-08-17","margin":0.6,"years_stood":4,"significance":5,"tie":false,"provisional":false,"lat":39.2833,"lon":-76.6167},{"id":"USC00034251-1909-08-17-tmax_high-monthly","station_id":"USC00034251","station_name":"Little Rock St Capitol","country":"US","type":"tmax_high","timescale":"monthly","date":"1909-08-17","value":40.6,"unit":"c","previous_value":40.6,"previous_date":"1896-08-01","margin":0,"years_stood":13,"significance":4,"tie":true,"provisional":false,"lat":34.75,"lon":-92.2833},{"id":"CA006046588-1909-08-17-tmax_high-daily","station_id":"CA006046588","station_name":"Port Arthur","country":"CA","type":"tmax_high","timescale":"daily","date":"1909-08-17","value":26.1,"unit":"c","previous_value":26.1,"previous_date":"1877-08-17","margin":0,"years_stood":31,"significance":3,"tie":true,"provisional":false,"lat":48.4333,"lon":-89.2167},{"id":"CA008104800-1909-08-17-tmax_high-daily","station_id":"CA008104800","station_name":"Saint John","country":"CA","type":"tmax_high","timescale":"daily","date":"1909-08-17","value":25,"unit":"c","previous_value":25,"previous_date":"1873-08-17","margin":0,"years_stood":35,"significance":3,"tie":true,"provisional":false,"lat":45.2833,"lon":-66.0833},{"id":"AU000005010-1909-08-17-tmin_high-daily","station_id":"AU000005010","station_name":"Kremsmuenster","country":"AT","type":"tmin_high","timescale":"daily","date":"1909-08-17","value":16.6,"unit":"c","previous_value":16.6,"previous_date":"1890-08-17","margin":0,"years_stood":18,"significance":2,"tie":true,"provisional":false,"lat":48.05,"lon":14.1331},{"id":"CA008205988-1909-08-17-tmin_high-daily","station_id":"CA008205988","station_name":"Truro","country":"CA","type":"tmin_high","timescale":"daily","date":"1909-08-17","value":18.9,"unit":"c","previous_value":18.9,"previous_date":"1882-08-17","margin":0,"years_stood":26,"significance":2,"tie":true,"provisional":false,"lat":45.35,"lon":-63.3},{"id":"USC00015555-1909-08-17-tmax_high-daily","station_id":"USC00015555","station_name":"Montgomery Wb City","country":"US","type":"tmax_high","timescale":"daily","date":"1909-08-17","value":36.7,"unit":"c","previous_value":36.7,"previous_date":"1896-08-17","margin":0,"years_stood":12,"significance":1,"tie":true,"provisional":false,"lat":32.3833,"lon":-86.3},{"id":"USW00093852-1909-08-17-tmin_high-daily","station_id":"USW00093852","station_name":"Jacksonville Wb City","country":"US","type":"tmin_high","timescale":"daily","date":"1909-08-17","value":26.1,"unit":"c","previous_value":26.1,"previous_date":"1900-08-17","margin":0,"years_stood":8,"significance":1,"tie":true,"provisional":false,"lat":30.3333,"lon":-81.65},{"id":"CA006127887-1909-08-17-tmin_high-daily","station_id":"CA006127887","station_name":"Southampton","country":"CA","type":"tmin_high","timescale":"daily","date":"1909-08-17","value":17.8,"unit":"c","previous_value":17.8,"previous_date":"1908-08-17","margin":0,"years_stood":0,"significance":0,"tie":true,"provisional":false,"lat":44.5,"lon":-81.3667}]}