{"title":"Records on 1909-10-21","description":"Every record set or tied on 1909-10-21.","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/1909-10-21/","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":"ASN00015540-1909-10-21-prcp_high-monthly","station_id":"ASN00015540","station_name":"Alice Springs Post Office","country":"AU","type":"prcp_high","timescale":"monthly","date":"1909-10-21","value":57.9,"unit":"mm","previous_value":30.2,"previous_date":"1876-10-29","margin":27.7,"years_stood":32,"significance":62,"tie":false,"provisional":false,"lat":-23.71,"lon":133.8683},{"id":"SWE00139148-1909-10-21-tmin_high-daily","station_id":"SWE00139148","station_name":"Uppsala_Aut","country":"SE","type":"tmin_high","timescale":"daily","date":"1909-10-21","value":11.5,"unit":"c","previous_value":11,"previous_date":"1846-10-21","margin":0.5,"years_stood":62,"significance":26,"tie":false,"provisional":false,"lat":59.86,"lon":17.63},{"id":"CA006046588-1909-10-21-prcp_high-daily","station_id":"CA006046588","station_name":"Port Arthur","country":"CA","type":"prcp_high","timescale":"daily","date":"1909-10-21","value":18.3,"unit":"mm","previous_value":8.9,"previous_date":"1895-10-21","margin":9.4,"years_stood":13,"significance":18,"tie":false,"provisional":false,"lat":48.4333,"lon":-89.2167},{"id":"DA000027080-1909-10-21-tmin_high-daily","station_id":"DA000027080","station_name":"Tranebjerg","country":"DK","type":"tmin_high","timescale":"daily","date":"1909-10-21","value":11.3,"unit":"c","previous_value":9.2,"previous_date":"1878-10-21","margin":2.1,"years_stood":30,"significance":18,"tie":false,"provisional":false,"lat":55.85,"lon":10.6},{"id":"DA000030380-1909-10-21-tmax_high-daily","station_id":"DA000030380","station_name":"Koebenhavn: Landbohojskolen-1","country":"DK","type":"tmax_high","timescale":"daily","date":"1909-10-21","value":15.7,"unit":"c","previous_value":13.8,"previous_date":"1878-10-21","margin":1.9,"years_stood":30,"significance":17,"tie":false,"provisional":false,"lat":55.6831,"lon":12.5331},{"id":"DA000021100-1909-10-21-tmin_high-daily","station_id":"DA000021100","station_name":"Vestervig","country":"DK","type":"tmin_high","timescale":"daily","date":"1909-10-21","value":12.4,"unit":"c","previous_value":9.5,"previous_date":"1893-10-21","margin":2.9,"years_stood":15,"significance":15,"tie":false,"provisional":false,"lat":56.7667,"lon":8.3167},{"id":"CA006127887-1909-10-21-prcp_high-daily","station_id":"CA006127887","station_name":"Southampton","country":"CA","type":"prcp_high","timescale":"daily","date":"1909-10-21","value":17,"unit":"mm","previous_value":14,"previous_date":"1884-10-21","margin":3,"years_stood":24,"significance":14,"tie":false,"provisional":false,"lat":44.5,"lon":-81.3667},{"id":"CA006108060-1909-10-21-prcp_high-daily","station_id":"CA006108060","station_name":"Stonecliffe","country":"CA","type":"prcp_high","timescale":"daily","date":"1909-10-21","value":9.9,"unit":"mm","previous_value":8.9,"previous_date":"1884-10-21","margin":1,"years_stood":24,"significance":11,"tie":false,"provisional":false,"lat":46.15,"lon":-78.1},{"id":"CA006139520-1909-10-21-prcp_high-daily","station_id":"CA006139520","station_name":"Windsor Riverside","country":"CA","type":"prcp_high","timescale":"daily","date":"1909-10-21","value":11.7,"unit":"mm","previous_value":8.4,"previous_date":"1897-10-21","margin":3.3,"years_stood":11,"significance":11,"tie":false,"provisional":false,"lat":42.3333,"lon":-82.9333},{"id":"DA000025140-1909-10-21-tmin_high-daily","station_id":"DA000025140","station_name":"Nordby (Fano)","country":"DK","type":"tmin_high","timescale":"daily","date":"1909-10-21","value":12.9,"unit":"c","previous_value":10.7,"previous_date":"1901-10-21","margin":2.2,"years_stood":8,"significance":11,"tie":false,"provisional":false,"lat":55.45,"lon":8.4},{"id":"GM000003319-1909-10-21-tmax_high-daily","station_id":"GM000003319","station_name":"Berlin-Dahlem","country":"DE","type":"tmax_high","timescale":"daily","date":"1909-10-21","value":20.3,"unit":"c","previous_value":18.9,"previous_date":"1891-10-21","margin":1.4,"years_stood":17,"significance":11,"tie":false,"provisional":false,"lat":52.4639,"lon":13.3017},{"id":"DA000032030-1909-10-21-tmax_high-daily","station_id":"DA000032030","station_name":"Sandvig","country":"DK","type":"tmax_high","timescale":"daily","date":"1909-10-21","value":16.1,"unit":"c","previous_value":14.8,"previous_date":"1901-10-21","margin":1.3,"years_stood":8,"significance":9,"tie":false,"provisional":false,"lat":55.2831,"lon":14.7831},{"id":"DA000032030-1909-10-21-tmin_high-daily","station_id":"DA000032030","station_name":"Sandvig","country":"DK","type":"tmin_high","timescale":"daily","date":"1909-10-21","value":12.2,"unit":"c","previous_value":10.9,"previous_date":"1901-10-21","margin":1.3,"years_stood":8,"significance":9,"tie":false,"provisional":false,"lat":55.2831,"lon":14.7831},{"id":"DA000027080-1909-10-21-tmax_high-daily","station_id":"DA000027080","station_name":"Tranebjerg","country":"DK","type":"tmax_high","timescale":"daily","date":"1909-10-21","value":14.9,"unit":"c","previous_value":14.1,"previous_date":"1901-10-21","margin":0.8,"years_stood":8,"significance":7,"tie":false,"provisional":false,"lat":55.85,"lon":10.6},{"id":"CA005023243-1909-10-21-snow_high-daily","station_id":"CA005023243","station_name":"Winnipeg St Johns Coll","country":"CA","type":"snow_high","timescale":"daily","date":"1909-10-21","value":33,"unit":"mm","previous_value":23,"previous_date":"1905-10-21","margin":10,"years_stood":4,"significance":6,"tie":false,"provisional":false,"lat":49.8833,"lon":-97.1167},{"id":"DA000021100-1909-10-21-tmax_high-daily","station_id":"DA000021100","station_name":"Vestervig","country":"DK","type":"tmax_high","timescale":"daily","date":"1909-10-21","value":13.9,"unit":"c","previous_value":13.6,"previous_date":"1901-10-21","margin":0.3,"years_stood":8,"significance":5,"tie":false,"provisional":false,"lat":56.7667,"lon":8.3167},{"id":"USW00014734-1909-10-21-tmin_low-daily","station_id":"USW00014734","station_name":"Newark Liberty Intl AP","country":"US","type":"tmin_low","timescale":"daily","date":"1909-10-21","value":0,"unit":"c","previous_value":0,"previous_date":"1859-10-21","margin":0,"years_stood":49,"significance":5,"tie":true,"provisional":false,"lat":40.6828,"lon":-74.1692},{"id":"AGE00135039-1909-10-21-prcp_high-daily","station_id":"AGE00135039","station_name":"Oran-Hopital Militaire","country":"DZ","type":"prcp_high","timescale":"daily","date":"1909-10-21","value":8,"unit":"mm","previous_value":8,"previous_date":"1907-10-21","margin":0,"years_stood":2,"significance":1,"tie":true,"provisional":false,"lat":35.7297,"lon":0.65},{"id":"USC00064767-1909-10-21-tmin_low-daily","station_id":"USC00064767","station_name":"Middletown 4 W","country":"US","type":"tmin_low","timescale":"daily","date":"1909-10-21","value":-2.2,"unit":"c","previous_value":-2.2,"previous_date":"1895-10-21","margin":0,"years_stood":13,"significance":1,"tie":true,"provisional":false,"lat":41.55,"lon":-72.7167}]}