{"title":"Records on 1917-04-21","description":"Every record set or tied on 1917-04-21.","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/1917-04-21/","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":"ASN00066007-1917-04-21-prcp_high-daily","station_id":"ASN00066007","station_name":"Botany No.1 Dam","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":83.1,"unit":"mm","previous_value":32.5,"previous_date":"1882-04-21","margin":50.6,"years_stood":34,"significance":44,"tie":false,"provisional":false,"lat":-33.9333,"lon":151.2167},{"id":"ASN00066113-1917-04-21-prcp_high-daily","station_id":"ASN00066113","station_name":"Burwood 1","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":41.9,"unit":"mm","previous_value":6.4,"previous_date":"1885-04-21","margin":35.5,"years_stood":31,"significance":36,"tie":false,"provisional":false,"lat":-33.9,"lon":151.1},{"id":"ASN00067019-1917-04-21-prcp_high-daily","station_id":"ASN00067019","station_name":"Prospect Reservoir","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":39.4,"unit":"mm","previous_value":9.4,"previous_date":"1891-04-21","margin":30,"years_stood":25,"significance":35,"tie":false,"provisional":false,"lat":-33.8193,"lon":150.9127},{"id":"ASN00066020-1917-04-21-prcp_high-daily","station_id":"ASN00066020","station_name":"Epping Chester Street","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":41.4,"unit":"mm","previous_value":10.9,"previous_date":"1892-04-21","margin":30.5,"years_stood":24,"significance":33,"tie":false,"provisional":false,"lat":-33.7687,"lon":151.0852},{"id":"CA001125585-1917-04-21-prcp_high-daily","station_id":"CA001125585","station_name":"Nicola Lake","country":"CA","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":10.2,"unit":"mm","previous_value":4.6,"previous_date":"1897-04-21","margin":5.6,"years_stood":19,"significance":20,"tie":false,"provisional":false,"lat":50.15,"lon":-120.65},{"id":"MD000033815-1917-04-21-prcp_high-daily","station_id":"MD000033815","station_name":"Kisinev","country":"MD","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":15.3,"unit":"mm","previous_value":5,"previous_date":"1891-04-21","margin":10.3,"years_stood":25,"significance":20,"tie":false,"provisional":false,"lat":47.02,"lon":28.87},{"id":"USC00215638-1917-04-21-prcp_high-daily","station_id":"USC00215638","station_name":"Morris W Cntrl Rsch & Outreach","country":"US","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":24.1,"unit":"mm","previous_value":8.4,"previous_date":"1891-04-21","margin":15.7,"years_stood":25,"significance":20,"tie":false,"provisional":false,"lat":45.59,"lon":-95.8744},{"id":"ASN00066062-1917-04-21-prcp_high-daily","station_id":"ASN00066062","station_name":"Sydney (Observatory Hill)","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":45.7,"unit":"mm","previous_value":16.5,"previous_date":"1913-04-21","margin":29.2,"years_stood":4,"significance":21,"tie":false,"provisional":false,"lat":-33.8607,"lon":151.205},{"id":"ASN00067009-1917-04-21-prcp_high-daily","station_id":"ASN00067009","station_name":"Glenfield (Macquarie)","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":34.3,"unit":"mm","previous_value":17.8,"previous_date":"1901-04-21","margin":16.5,"years_stood":16,"significance":21,"tie":false,"provisional":false,"lat":-33.9667,"lon":150.9},{"id":"ASN00068011-1917-04-21-prcp_high-daily","station_id":"ASN00068011","station_name":"Camden Bowling Club","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":30.7,"unit":"mm","previous_value":11.7,"previous_date":"1891-04-21","margin":19,"years_stood":25,"significance":20,"tie":false,"provisional":false,"lat":-34.05,"lon":150.7167},{"id":"ASN00061055-1917-04-21-prcp_high-daily","station_id":"ASN00061055","station_name":"Newcastle Nobbys Signal Statio","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":54.9,"unit":"mm","previous_value":43.9,"previous_date":"1893-04-21","margin":11,"years_stood":23,"significance":19,"tie":false,"provisional":false,"lat":-32.9185,"lon":151.7985},{"id":"ASN00068013-1917-04-21-prcp_high-daily","station_id":"ASN00068013","station_name":"Menangle Jmai","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":42.7,"unit":"mm","previous_value":29.5,"previous_date":"1901-04-21","margin":13.2,"years_stood":16,"significance":19,"tie":false,"provisional":false,"lat":-34.1258,"lon":150.7375},{"id":"CA006166416-1917-04-21-tmin_high-daily","station_id":"CA006166416","station_name":"Peterborough","country":"CA","type":"tmin_high","timescale":"daily","date":"1917-04-21","value":13.9,"unit":"c","previous_value":10,"previous_date":"1896-04-21","margin":3.9,"years_stood":20,"significance":19,"tie":false,"provisional":false,"lat":44.2833,"lon":-78.3167},{"id":"ASN00068052-1917-04-21-prcp_high-daily","station_id":"ASN00068052","station_name":"Picton Council Depot","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":43.4,"unit":"mm","previous_value":29.2,"previous_date":"1901-04-21","margin":14.2,"years_stood":16,"significance":17,"tie":false,"provisional":false,"lat":-34.1685,"lon":150.6145},{"id":"CA006104185-1917-04-21-tmin_high-daily","station_id":"CA006104185","station_name":"Kingston Queens U","country":"CA","type":"tmin_high","timescale":"daily","date":"1917-04-21","value":8.3,"unit":"c","previous_value":7.8,"previous_date":"1878-04-21","margin":0.5,"years_stood":38,"significance":16,"tie":false,"provisional":false,"lat":44.25,"lon":-76.5},{"id":"GME00102380-1917-04-21-tmax_low-daily","station_id":"GME00102380","station_name":"Nurnberg","country":"DE","type":"tmax_low","timescale":"daily","date":"1917-04-21","value":5.8,"unit":"c","previous_value":7.9,"previous_date":"1884-04-21","margin":2.1,"years_stood":32,"significance":16,"tie":false,"provisional":false,"lat":49.5042,"lon":11.0567},{"id":"SWE00140186-1917-04-21-prcp_high-daily","station_id":"SWE00140186","station_name":"Umea","country":"SE","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":7.4,"unit":"mm","previous_value":5,"previous_date":"1903-04-21","margin":2.4,"years_stood":14,"significance":15,"tie":false,"provisional":false,"lat":63.83,"lon":20.28},{"id":"SWM00002584-1917-04-21-prcp_high-daily","station_id":"SWM00002584","station_name":"Gotska Sandon","country":"SE","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":11.8,"unit":"mm","previous_value":7.9,"previous_date":"1908-04-21","margin":3.9,"years_stood":8,"significance":15,"tie":false,"provisional":false,"lat":58.4,"lon":19.2},{"id":"ASN00061005-1917-04-21-prcp_high-daily","station_id":"ASN00061005","station_name":"Branxton Post Office","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":17.5,"unit":"mm","previous_value":12.4,"previous_date":"1893-04-21","margin":5.1,"years_stood":23,"significance":14,"tie":false,"provisional":false,"lat":-32.65,"lon":151.35},{"id":"ASN00067056-1917-04-21-prcp_high-daily","station_id":"ASN00067056","station_name":"Pitt Town (the Manse)","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":14,"unit":"mm","previous_value":9.9,"previous_date":"1891-04-21","margin":4.1,"years_stood":25,"significance":14,"tie":false,"provisional":false,"lat":-33.5667,"lon":150.8833},{"id":"CA006108060-1917-04-21-tmin_high-daily","station_id":"CA006108060","station_name":"Stonecliffe","country":"CA","type":"tmin_high","timescale":"daily","date":"1917-04-21","value":6.7,"unit":"c","previous_value":4.4,"previous_date":"1894-04-21","margin":2.3,"years_stood":22,"significance":14,"tie":false,"provisional":false,"lat":46.15,"lon":-78.1},{"id":"CA006150243-1917-04-21-tmin_high-daily","station_id":"CA006150243","station_name":"Alton","country":"CA","type":"tmin_high","timescale":"daily","date":"1917-04-21","value":8.9,"unit":"c","previous_value":7.2,"previous_date":"1889-04-21","margin":1.7,"years_stood":27,"significance":14,"tie":false,"provisional":false,"lat":43.85,"lon":-80.0833},{"id":"ASN00061023-1917-04-21-prcp_high-daily","station_id":"ASN00061023","station_name":"Gosford (Gertrude Place)","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":29,"unit":"mm","previous_value":22.9,"previous_date":"1892-04-21","margin":6.1,"years_stood":24,"significance":13,"tie":false,"provisional":false,"lat":-33.4336,"lon":151.3381},{"id":"GM000004199-1917-04-21-tmax_low-daily","station_id":"GM000004199","station_name":"Munchen-Nymphenburg","country":"DE","type":"tmax_low","timescale":"daily","date":"1917-04-21","value":4.9,"unit":"c","previous_value":6.2,"previous_date":"1888-04-21","margin":1.3,"years_stood":28,"significance":13,"tie":false,"provisional":false,"lat":48.1667,"lon":11.5025},{"id":"ASN00068017-1917-04-21-prcp_high-daily","station_id":"ASN00068017","station_name":"Cataract River","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":35.6,"unit":"mm","previous_value":27.2,"previous_date":"1901-04-21","margin":8.4,"years_stood":16,"significance":12,"tie":false,"provisional":false,"lat":-34.2333,"lon":150.75},{"id":"SW000002288-1917-04-21-prcp_high-daily","station_id":"SW000002288","station_name":"Holmogadd A","country":"SE","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":7.3,"unit":"mm","previous_value":5.9,"previous_date":"1898-04-21","margin":1.4,"years_stood":18,"significance":12,"tie":false,"provisional":false,"lat":63.59,"lon":20.76},{"id":"CE000043497-1917-04-21-tmin_high-daily","station_id":"CE000043497","station_name":"Hambantota","country":"LK","type":"tmin_high","timescale":"daily","date":"1917-04-21","value":26.8,"unit":"c","previous_value":26.7,"previous_date":"1892-04-21","margin":0.1,"years_stood":24,"significance":11,"tie":false,"provisional":false,"lat":6.117,"lon":81.133},{"id":"UPM00033991-1917-04-21-prcp_high-daily","station_id":"UPM00033991","station_name":"Sevastopol',Mgs","country":"UA","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":2.1,"unit":"mm","previous_value":1,"previous_date":"1896-04-21","margin":1.1,"years_stood":20,"significance":11,"tie":false,"provisional":false,"lat":44.62,"lon":33.53},{"id":"USW00013779-1917-04-21-tmax_high-daily","station_id":"USW00013779","station_name":"Philadelphia City","country":"US","type":"tmax_high","timescale":"daily","date":"1917-04-21","value":26.7,"unit":"c","previous_value":26.1,"previous_date":"1896-04-21","margin":0.6,"years_stood":20,"significance":11,"tie":false,"provisional":false,"lat":39.95,"lon":-75.15},{"id":"GME00130726-1917-04-21-prcp_high-daily","station_id":"GME00130726","station_name":"Lichtentanne","country":"DE","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":15.7,"unit":"mm","previous_value":14.8,"previous_date":"1902-04-21","margin":0.9,"years_stood":15,"significance":10,"tie":false,"provisional":false,"lat":50.6892,"lon":12.4342},{"id":"SWE00139396-1917-04-21-prcp_high-daily","station_id":"SWE00139396","station_name":"Orskar_A","country":"SE","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":5.1,"unit":"mm","previous_value":3.6,"previous_date":"1905-04-21","margin":1.5,"years_stood":12,"significance":10,"tie":false,"provisional":false,"lat":60.53,"lon":18.38},{"id":"ASN00067004-1917-04-21-prcp_high-daily","station_id":"ASN00067004","station_name":"Emu Plains","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":23.6,"unit":"mm","previous_value":22.1,"previous_date":"1901-04-21","margin":1.5,"years_stood":16,"significance":8,"tie":false,"provisional":false,"lat":-33.75,"lon":150.6667},{"id":"HRE00105189-1917-04-21-tmin_low-daily","station_id":"HRE00105189","station_name":"Hvar","country":"HR","type":"tmin_low","timescale":"daily","date":"1917-04-21","value":7.1,"unit":"c","previous_value":7.3,"previous_date":"1903-04-21","margin":0.2,"years_stood":14,"significance":8,"tie":false,"provisional":false,"lat":43.1667,"lon":16.45},{"id":"ASN00066015-1917-04-21-prcp_high-daily","station_id":"ASN00066015","station_name":"Crown St. Reservoir","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":55.4,"unit":"mm","previous_value":48.3,"previous_date":"1912-04-21","margin":7.1,"years_stood":4,"significance":7,"tie":false,"provisional":false,"lat":-33.8833,"lon":151.2},{"id":"GME00130630-1917-04-21-tmax_low-daily","station_id":"GME00130630","station_name":"Wrixum/Fohr","country":"DE","type":"tmax_low","timescale":"daily","date":"1917-04-21","value":6.2,"unit":"c","previous_value":7.2,"previous_date":"1908-04-21","margin":1,"years_stood":8,"significance":7,"tie":false,"provisional":false,"lat":54.6942,"lon":8.5281},{"id":"SWE00138058-1917-04-21-prcp_high-daily","station_id":"SWE00138058","station_name":"Olands Norra Udde","country":"SE","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":8.8,"unit":"mm","previous_value":8,"previous_date":"1910-04-21","margin":0.8,"years_stood":7,"significance":7,"tie":false,"provisional":false,"lat":57.37,"lon":17.1},{"id":"ASN00068003-1917-04-21-prcp_high-daily","station_id":"ASN00068003","station_name":"Berry Masonic Village","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":20.3,"unit":"mm","previous_value":13,"previous_date":"1913-04-21","margin":7.3,"years_stood":4,"significance":6,"tie":false,"provisional":false,"lat":-34.781,"lon":150.6917},{"id":"CE000434730-1917-04-21-tmax_high-monthly","station_id":"CE000434730","station_name":"Nuwara Eliya","country":"LK","type":"tmax_high","timescale":"monthly","date":"1917-04-21","value":26.1,"unit":"c","previous_value":26.1,"previous_date":"1873-04-07","margin":0,"years_stood":44,"significance":6,"tie":true,"provisional":false,"lat":6.967,"lon":80.767},{"id":"USC00314938-1917-04-21-prcp_high-daily","station_id":"USC00314938","station_name":"Lenoir","country":"US","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":1.8,"unit":"mm","previous_value":1,"previous_date":"1912-04-21","margin":0.8,"years_stood":4,"significance":5,"tie":false,"provisional":false,"lat":35.9147,"lon":-81.5375},{"id":"USC00383742-1917-04-21-tmax_high-daily","station_id":"USC00383742","station_name":"Greenville Dwtn AP","country":"US","type":"tmax_high","timescale":"daily","date":"1917-04-21","value":32.2,"unit":"c","previous_value":31.1,"previous_date":"1916-04-21","margin":1.1,"years_stood":0,"significance":5,"tie":false,"provisional":false,"lat":34.8486,"lon":-82.35},{"id":"GM000004063-1917-04-21-tmax_low-daily","station_id":"GM000004063","station_name":"Bamberg","country":"DE","type":"tmax_low","timescale":"daily","date":"1917-04-21","value":7,"unit":"c","previous_value":7,"previous_date":"1884-04-21","margin":0,"years_stood":32,"significance":3,"tie":true,"provisional":false,"lat":49.8753,"lon":10.9217},{"id":"ASN00068014-1917-04-21-prcp_high-daily","station_id":"ASN00068014","station_name":"Campbelltown 1","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-04-21","value":23.9,"unit":"mm","previous_value":23.9,"previous_date":"1901-04-21","margin":0,"years_stood":16,"significance":2,"tie":true,"provisional":false,"lat":-34.0667,"lon":150.8},{"id":"CA006150243-1917-04-21-tmax_high-daily","station_id":"CA006150243","station_name":"Alton","country":"CA","type":"tmax_high","timescale":"daily","date":"1917-04-21","value":22.2,"unit":"c","previous_value":22.2,"previous_date":"1900-04-21","margin":0,"years_stood":16,"significance":2,"tie":true,"provisional":false,"lat":43.85,"lon":-80.0833},{"id":"SWE00139028-1917-04-21-tmax_low-daily","station_id":"SWE00139028","station_name":"Vasteras-Hasslo","country":"SE","type":"tmax_low","timescale":"daily","date":"1917-04-21","value":3,"unit":"c","previous_value":3,"previous_date":"1888-04-21","margin":0,"years_stood":28,"significance":2,"tie":true,"provisional":false,"lat":59.59,"lon":16.63},{"id":"USC00319462-1917-04-21-tmax_high-daily","station_id":"USC00319462","station_name":"Wilmington Wb City","country":"US","type":"tmax_high","timescale":"daily","date":"1917-04-21","value":31.7,"unit":"c","previous_value":31.7,"previous_date":"1896-04-21","margin":0,"years_stood":20,"significance":2,"tie":true,"provisional":false,"lat":34.2333,"lon":-77.95},{"id":"SWE00137686-1917-04-21-tmax_low-daily","station_id":"SWE00137686","station_name":"Karlshamn","country":"SE","type":"tmax_low","timescale":"daily","date":"1917-04-21","value":4,"unit":"c","previous_value":4,"previous_date":"1908-04-21","margin":0,"years_stood":8,"significance":1,"tie":true,"provisional":false,"lat":56.18,"lon":14.85},{"id":"USW00093725-1917-04-21-tmax_high-daily","station_id":"USW00093725","station_name":"Washington","country":"US","type":"tmax_high","timescale":"daily","date":"1917-04-21","value":29.4,"unit":"c","previous_value":29.4,"previous_date":"1916-04-21","margin":0,"years_stood":0,"significance":1,"tie":true,"provisional":false,"lat":38.9053,"lon":-77.0525},{"id":"USC00289135-1917-04-21-tmax_high-daily","station_id":"USC00289135","station_name":"Vineland","country":"US","type":"tmax_high","timescale":"daily","date":"1917-04-21","value":29.4,"unit":"c","previous_value":29.4,"previous_date":"1916-04-21","margin":0,"years_stood":0,"significance":0,"tie":true,"provisional":false,"lat":39.4833,"lon":-75}]}