{"title":"Records on 1921-05-01","description":"Every record set or tied on 1921-05-01.","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/1921-05-01/","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":"ASN00051013-1921-05-01-prcp_high-daily","station_id":"ASN00051013","station_name":"Warren (Eenaweena)","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":48.5,"unit":"mm","previous_value":1.8,"previous_date":"1898-05-01","margin":46.7,"years_stood":22,"significance":50,"tie":false,"provisional":false,"lat":-31.515,"lon":147.55},{"id":"SF000933140-1921-05-01-prcp_high-daily","station_id":"SF000933140","station_name":"Bakensrug","country":"ZA","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":27.2,"unit":"mm","previous_value":0,"previous_date":"1890-05-01","margin":27.2,"years_stood":30,"significance":49,"tie":false,"provisional":false,"lat":-32.23,"lon":23.18},{"id":"ASN00070025-1921-05-01-prcp_high-daily","station_id":"ASN00070025","station_name":"Crookwell Post Office","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":31,"unit":"mm","previous_value":5.6,"previous_date":"1892-05-01","margin":25.4,"years_stood":28,"significance":47,"tie":false,"provisional":false,"lat":-34.4578,"lon":149.4693},{"id":"USC00190736-1921-05-01-prcp_high-daily","station_id":"USC00190736","station_name":"Blue Hill Coop","country":"US","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":64.3,"unit":"mm","previous_value":32,"previous_date":"1918-05-01","margin":32.3,"years_stood":3,"significance":35,"tie":false,"provisional":false,"lat":42.2122,"lon":-71.1136},{"id":"USC00194135-1921-05-01-prcp_high-daily","station_id":"USC00194135","station_name":"Leominster","country":"US","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":57.9,"unit":"mm","previous_value":23.1,"previous_date":"1918-05-01","margin":34.8,"years_stood":3,"significance":35,"tie":false,"provisional":false,"lat":42.5333,"lon":-71.7667},{"id":"USC00193625-1921-05-01-prcp_high-daily","station_id":"USC00193625","station_name":"Hingham (1)","country":"US","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":71.1,"unit":"mm","previous_value":31.8,"previous_date":"1918-05-01","margin":39.3,"years_stood":3,"significance":29,"tie":false,"provisional":false,"lat":42.2167,"lon":-70.8833},{"id":"ASN00017065-1921-05-01-prcp_high-daily","station_id":"ASN00017065","station_name":"Ediacara","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":11.7,"unit":"mm","previous_value":0.5,"previous_date":"1887-05-01","margin":11.2,"years_stood":33,"significance":20,"tie":false,"provisional":false,"lat":-30.3983,"lon":137.9033},{"id":"EIE00101859-1921-05-01-tmax_high-daily","station_id":"EIE00101859","station_name":"Galway","country":"IE","type":"tmax_high","timescale":"daily","date":"1921-05-01","value":22.2,"unit":"c","previous_value":20.6,"previous_date":"1869-05-01","margin":1.6,"years_stood":51,"significance":26,"tie":false,"provisional":false,"lat":53.28,"lon":-9.02},{"id":"CA007050200-1921-05-01-tmax_high-daily","station_id":"CA007050200","station_name":"Anticosti SW Point","country":"CA","type":"tmax_high","timescale":"daily","date":"1921-05-01","value":12.2,"unit":"c","previous_value":8.9,"previous_date":"1899-05-01","margin":3.3,"years_stood":21,"significance":19,"tie":false,"provisional":false,"lat":49.4,"lon":-63.55},{"id":"AGE00147711-1921-05-01-prcp_high-daily","station_id":"AGE00147711","station_name":"Constantine","country":"DZ","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":16.8,"unit":"mm","previous_value":14,"previous_date":"1886-05-01","margin":2.8,"years_stood":34,"significance":18,"tie":false,"provisional":false,"lat":36.3697,"lon":6.62},{"id":"ASN00074082-1921-05-01-prcp_high-daily","station_id":"ASN00074082","station_name":"Narrandera Post Office","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":1.3,"unit":"mm","previous_value":0,"previous_date":"1880-05-01","margin":1.3,"years_stood":40,"significance":17,"tie":false,"provisional":false,"lat":-34.75,"lon":146.55},{"id":"RSM00024959-1921-05-01-tmin_low-monthly","station_id":"RSM00024959","station_name":"Jakutsk","country":"RU","type":"tmin_low","timescale":"monthly","date":"1921-05-01","value":-17.3,"unit":"c","previous_value":-17,"previous_date":"1905-05-02","margin":0.3,"years_stood":15,"significance":17,"tie":false,"provisional":false,"lat":62.0167,"lon":129.7167},{"id":"SF001012570-1921-05-01-prcp_high-daily","station_id":"SF001012570","station_name":"Cathcart","country":"ZA","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":12.7,"unit":"mm","previous_value":7.6,"previous_date":"1898-05-01","margin":5.1,"years_stood":22,"significance":17,"tie":false,"provisional":false,"lat":-32.28,"lon":27.15},{"id":"SF002874410-1921-05-01-prcp_high-daily","station_id":"SF002874410","station_name":"Griquatown (Tnk)","country":"ZA","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":14.2,"unit":"mm","previous_value":5.3,"previous_date":"1913-05-01","margin":8.9,"years_stood":8,"significance":17,"tie":false,"provisional":false,"lat":-28.85,"lon":23.27},{"id":"SWE00139694-1921-05-01-tmin_high-daily","station_id":"SWE00139694","station_name":"Bjuraker","country":"SE","type":"tmin_high","timescale":"daily","date":"1921-05-01","value":6.5,"unit":"c","previous_value":3.5,"previous_date":"1905-05-01","margin":3,"years_stood":16,"significance":16,"tie":false,"provisional":false,"lat":61.85,"lon":16.5797},{"id":"SWE00140746-1921-05-01-tmin_high-daily","station_id":"SWE00140746","station_name":"Jokkmokk","country":"SE","type":"tmin_high","timescale":"daily","date":"1921-05-01","value":2.6,"unit":"c","previous_value":2,"previous_date":"1882-05-01","margin":0.6,"years_stood":38,"significance":16,"tie":false,"provisional":false,"lat":66.6297,"lon":19.64},{"id":"ASN00076077-1921-05-01-tmax_high-daily","station_id":"ASN00076077","station_name":"Mildura Post Office","country":"AU","type":"tmax_high","timescale":"daily","date":"1921-05-01","value":31.1,"unit":"c","previous_value":28.9,"previous_date":"1896-05-01","margin":2.2,"years_stood":24,"significance":15,"tie":false,"provisional":false,"lat":-34.1833,"lon":142.2},{"id":"SF004323870-1921-05-01-prcp_high-daily","station_id":"SF004323870","station_name":"Vryburg (Pol)","country":"ZA","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":3.6,"unit":"mm","previous_value":1.3,"previous_date":"1887-05-01","margin":2.3,"years_stood":33,"significance":15,"tie":false,"provisional":false,"lat":-26.97,"lon":24.73},{"id":"ASN00023000-1921-05-01-tmax_high-daily","station_id":"ASN00023000","station_name":"Adelaide West Terrace","country":"AU","type":"tmax_high","timescale":"daily","date":"1921-05-01","value":30.1,"unit":"c","previous_value":29.6,"previous_date":"1888-05-01","margin":0.5,"years_stood":32,"significance":13,"tie":false,"provisional":false,"lat":-34.9254,"lon":138.5869},{"id":"SW000002361-1921-05-01-tmax_high-daily","station_id":"SW000002361","station_name":"Harnosand","country":"SE","type":"tmax_high","timescale":"daily","date":"1921-05-01","value":18.2,"unit":"c","previous_value":18,"previous_date":"1890-05-01","margin":0.2,"years_stood":30,"significance":13,"tie":false,"provisional":false,"lat":62.6331,"lon":17.9331},{"id":"ASN00070030-1921-05-01-prcp_high-daily","station_id":"ASN00070030","station_name":"Bungendore (Douglas)","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":1.3,"unit":"mm","previous_value":0.3,"previous_date":"1894-05-01","margin":1,"years_stood":26,"significance":12,"tie":false,"provisional":false,"lat":-35.1833,"lon":149.4},{"id":"SW000002120-1921-05-01-tmin_high-daily","station_id":"SW000002120","station_name":"Kvikkjokk-Arrenjarka","country":"SE","type":"tmin_high","timescale":"daily","date":"1921-05-01","value":4,"unit":"c","previous_value":3,"previous_date":"1897-05-01","margin":1,"years_stood":23,"significance":12,"tie":false,"provisional":false,"lat":66.9597,"lon":17.73},{"id":"ASN00074128-1921-05-01-tmin_high-daily","station_id":"ASN00074128","station_name":"Deniliquin (Wilkinson St)","country":"AU","type":"tmin_high","timescale":"daily","date":"1921-05-01","value":17.2,"unit":"c","previous_value":15,"previous_date":"1919-05-01","margin":2.2,"years_stood":2,"significance":11,"tie":false,"provisional":false,"lat":-35.5269,"lon":144.952},{"id":"ASN00085077-1921-05-01-prcp_high-daily","station_id":"ASN00085077","station_name":"Stradbroke Post Office","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":2.5,"unit":"mm","previous_value":2,"previous_date":"1894-05-01","margin":0.5,"years_stood":26,"significance":11,"tie":false,"provisional":false,"lat":-38.3,"lon":147},{"id":"RSM00030710-1921-05-01-tmax_high-daily","station_id":"RSM00030710","station_name":"Irkutsk","country":"RU","type":"tmax_high","timescale":"daily","date":"1921-05-01","value":23.3,"unit":"c","previous_value":21.9,"previous_date":"1901-05-01","margin":1.4,"years_stood":20,"significance":11,"tie":false,"provisional":false,"lat":52.2667,"lon":104.35},{"id":"SWE00140492-1921-05-01-tmin_high-daily","station_id":"SWE00140492","station_name":"Pitea","country":"SE","type":"tmin_high","timescale":"daily","date":"1921-05-01","value":5,"unit":"c","previous_value":2.5,"previous_date":"1918-05-01","margin":2.5,"years_stood":3,"significance":11,"tie":false,"provisional":false,"lat":65.3197,"lon":21.49},{"id":"CA001100120-1921-05-01-prcp_high-daily","station_id":"CA001100120","station_name":"Agassiz Cda","country":"CA","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":20.1,"unit":"mm","previous_value":14.5,"previous_date":"1919-05-01","margin":5.6,"years_stood":2,"significance":9,"tie":false,"provisional":false,"lat":49.25,"lon":-121.7667},{"id":"SF001190820-1921-05-01-prcp_high-daily","station_id":"SF001190820","station_name":"Nieu-Bethesda (Pol)","country":"ZA","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":3.8,"unit":"mm","previous_value":1.8,"previous_date":"1903-05-01","margin":2,"years_stood":18,"significance":9,"tie":false,"provisional":false,"lat":-31.87,"lon":24.55},{"id":"SF001244020-1921-05-01-prcp_high-daily","station_id":"SF001244020","station_name":"Lady Frere (Tnk)","country":"ZA","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":6.4,"unit":"mm","previous_value":5.1,"previous_date":"1903-05-01","margin":1.3,"years_stood":18,"significance":9,"tie":false,"provisional":false,"lat":-31.7,"lon":27.23},{"id":"RSM00024959-1921-05-01-prcp_high-daily","station_id":"RSM00024959","station_name":"Jakutsk","country":"RU","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":2,"unit":"mm","previous_value":1.3,"previous_date":"1911-05-01","margin":0.7,"years_stood":10,"significance":8,"tie":false,"provisional":false,"lat":62.0167,"lon":129.7167},{"id":"SF001025420-1921-05-01-prcp_high-daily","station_id":"SF001025420","station_name":"Tsomo (Pol)","country":"ZA","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":12.7,"unit":"mm","previous_value":8.9,"previous_date":"1919-05-01","margin":3.8,"years_stood":2,"significance":8,"tie":false,"provisional":false,"lat":-32.03,"lon":27.82},{"id":"ASN00040225-1921-05-01-prcp_high-daily","station_id":"ASN00040225","station_name":"Enoggera Reservoir","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-05-01","value":12.2,"unit":"mm","previous_value":10.7,"previous_date":"1918-05-01","margin":1.5,"years_stood":3,"significance":5,"tie":false,"provisional":false,"lat":-27.4447,"lon":152.9286},{"id":"USW00093725-1921-05-01-tmax_low-daily","station_id":"USW00093725","station_name":"Washington","country":"US","type":"tmax_low","timescale":"daily","date":"1921-05-01","value":10.6,"unit":"c","previous_value":10.6,"previous_date":"1877-05-01","margin":0,"years_stood":43,"significance":5,"tie":true,"provisional":false,"lat":38.9053,"lon":-77.0525},{"id":"AGE00147711-1921-05-01-tmax_low-monthly","station_id":"AGE00147711","station_name":"Constantine","country":"DZ","type":"tmax_low","timescale":"monthly","date":"1921-05-01","value":9,"unit":"c","previous_value":9,"previous_date":"1910-05-02","margin":0,"years_stood":10,"significance":4,"tie":true,"provisional":false,"lat":36.3697,"lon":6.62},{"id":"SW000002361-1921-05-01-tmin_high-daily","station_id":"SW000002361","station_name":"Harnosand","country":"SE","type":"tmin_high","timescale":"daily","date":"1921-05-01","value":5,"unit":"c","previous_value":5,"previous_date":"1894-05-01","margin":0,"years_stood":26,"significance":3,"tie":true,"provisional":false,"lat":62.6331,"lon":17.9331},{"id":"USW00013779-1921-05-01-tmax_low-daily","station_id":"USW00013779","station_name":"Philadelphia City","country":"US","type":"tmax_low","timescale":"daily","date":"1921-05-01","value":11.1,"unit":"c","previous_value":11.1,"previous_date":"1893-05-01","margin":0,"years_stood":27,"significance":3,"tie":true,"provisional":false,"lat":39.95,"lon":-75.15},{"id":"UK000003026-1921-05-01-tmax_high-daily","station_id":"UK000003026","station_name":"Stornoway Airport","country":"GB","type":"tmax_high","timescale":"daily","date":"1921-05-01","value":16.7,"unit":"c","previous_value":16.7,"previous_date":"1901-05-01","margin":0,"years_stood":20,"significance":2,"tie":true,"provisional":false,"lat":58.33,"lon":-6.32},{"id":"USC00281351-1921-05-01-tmax_low-daily","station_id":"USC00281351","station_name":"Cape May 2 NW","country":"US","type":"tmax_low","timescale":"daily","date":"1921-05-01","value":11.7,"unit":"c","previous_value":11.7,"previous_date":"1896-05-01","margin":0,"years_stood":24,"significance":2,"tie":true,"provisional":false,"lat":38.9533,"lon":-74.9361},{"id":"USC00350324-1921-05-01-tmax_low-daily","station_id":"USC00350324","station_name":"Astoria","country":"US","type":"tmax_low","timescale":"daily","date":"1921-05-01","value":10,"unit":"c","previous_value":10,"previous_date":"1894-05-01","margin":0,"years_stood":26,"significance":2,"tie":true,"provisional":false,"lat":46.1833,"lon":-123.8333},{"id":"CA006105976-1921-05-01-tmin_high-daily","station_id":"CA006105976","station_name":"Ottawa Cda","country":"CA","type":"tmin_high","timescale":"daily","date":"1921-05-01","value":10.6,"unit":"c","previous_value":10.6,"previous_date":"1916-05-01","margin":0,"years_stood":4,"significance":1,"tie":true,"provisional":false,"lat":45.3833,"lon":-75.7167},{"id":"USC00363711-1921-05-01-tmax_low-daily","station_id":"USC00363711","station_name":"Harrisburg - Coop","country":"US","type":"tmax_low","timescale":"daily","date":"1921-05-01","value":10,"unit":"c","previous_value":10,"previous_date":"1908-05-01","margin":0,"years_stood":12,"significance":1,"tie":true,"provisional":false,"lat":40.2667,"lon":-76.8833}]}