{"title":"Records on 1921-08-17","description":"Every record set or tied on 1921-08-17.","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/1921-08-17/","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":"CA006131388-1921-08-17-prcp_high-daily","station_id":"CA006131388","station_name":"Chatham 2","country":"CA","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":57.2,"unit":"mm","previous_value":22.6,"previous_date":"1887-08-17","margin":34.6,"years_stood":33,"significance":43,"tie":false,"provisional":false,"lat":42.4,"lon":-82.2},{"id":"CA001105550-1921-08-17-prcp_high-daily","station_id":"CA001105550","station_name":"New Westminster","country":"CA","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":31.2,"unit":"mm","previous_value":4.1,"previous_date":"1913-08-17","margin":27.1,"years_stood":8,"significance":38,"tie":false,"provisional":false,"lat":49.2167,"lon":-122.9333},{"id":"CA006131910-1921-08-17-prcp_high-daily","station_id":"CA006131910","station_name":"Cottam","country":"CA","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":47,"unit":"mm","previous_value":27.2,"previous_date":"1887-08-17","margin":19.8,"years_stood":33,"significance":34,"tie":false,"provisional":false,"lat":42.1167,"lon":-82.75},{"id":"TSE00147775-1921-08-17-tmin_low-daily","station_id":"TSE00147775","station_name":"Sfax El-Maou","country":"TN","type":"tmin_low","timescale":"daily","date":"1921-08-17","value":18,"unit":"c","previous_value":20,"previous_date":"1886-08-17","margin":2,"years_stood":34,"significance":21,"tie":false,"provisional":false,"lat":34.72,"lon":10.68},{"id":"ASN00033046-1921-08-17-prcp_high-daily","station_id":"ASN00033046","station_name":"Mackay Post Office","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":1.3,"unit":"mm","previous_value":0,"previous_date":"1874-08-17","margin":1.3,"years_stood":46,"significance":19,"tie":false,"provisional":false,"lat":-21.15,"lon":149.1833},{"id":"CA006136694-1921-08-17-prcp_high-daily","station_id":"CA006136694","station_name":"Port Stanley","country":"CA","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":14.7,"unit":"mm","previous_value":14,"previous_date":"1880-08-17","margin":0.7,"years_stood":40,"significance":17,"tie":false,"provisional":false,"lat":42.6667,"lon":-81.2167},{"id":"GG000037545-1921-08-17-tmin_high-daily","station_id":"GG000037545","station_name":"Tbilisi","country":"GE","type":"tmin_high","timescale":"daily","date":"1921-08-17","value":22.2,"unit":"c","previous_value":21.2,"previous_date":"1889-08-17","margin":1,"years_stood":31,"significance":17,"tie":false,"provisional":false,"lat":41.68,"lon":44.95},{"id":"SF000218230-1921-08-17-prcp_high-daily","station_id":"SF000218230","station_name":"Paarl (Tnk)","country":"ZA","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":19.6,"unit":"mm","previous_value":14.7,"previous_date":"1886-08-17","margin":4.9,"years_stood":34,"significance":17,"tie":false,"provisional":false,"lat":-33.72,"lon":18.97},{"id":"UPM00033587-1921-08-17-tmin_high-daily","station_id":"UPM00033587","station_name":"Uman","country":"UA","type":"tmin_high","timescale":"daily","date":"1921-08-17","value":17.7,"unit":"c","previous_value":15.1,"previous_date":"1901-08-17","margin":2.6,"years_stood":20,"significance":17,"tie":false,"provisional":false,"lat":48.77,"lon":30.23},{"id":"CA006116128-1921-08-17-prcp_high-daily","station_id":"CA006116128","station_name":"Owen Sound","country":"CA","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":19.3,"unit":"mm","previous_value":15.5,"previous_date":"1891-08-17","margin":3.8,"years_stood":29,"significance":15,"tie":false,"provisional":false,"lat":44.5667,"lon":-80.9167},{"id":"RSM00023804-1921-08-17-tmin_high-daily","station_id":"RSM00023804","station_name":"Syktyvkar","country":"RU","type":"tmin_high","timescale":"daily","date":"1921-08-17","value":16.7,"unit":"c","previous_value":14.4,"previous_date":"1898-08-17","margin":2.3,"years_stood":22,"significance":15,"tie":false,"provisional":false,"lat":61.6667,"lon":50.8667},{"id":"USC00225247-1921-08-17-tmax_low-daily","station_id":"USC00225247","station_name":"Louisville","country":"US","type":"tmax_low","timescale":"daily","date":"1921-08-17","value":28.3,"unit":"c","previous_value":30,"previous_date":"1901-08-17","margin":1.7,"years_stood":20,"significance":15,"tie":false,"provisional":false,"lat":33.1356,"lon":-89.0711},{"id":"USC00319191-1921-08-17-tmin_low-daily","station_id":"USC00319191","station_name":"Weldon","country":"US","type":"tmin_low","timescale":"daily","date":"1921-08-17","value":12.2,"unit":"c","previous_value":13.1,"previous_date":"1889-08-17","margin":0.9,"years_stood":31,"significance":15,"tie":false,"provisional":false,"lat":36.4333,"lon":-77.6},{"id":"UPM00033345-1921-08-17-tmin_high-daily","station_id":"UPM00033345","station_name":"Kiev","country":"UA","type":"tmin_high","timescale":"daily","date":"1921-08-17","value":17.6,"unit":"c","previous_value":16.7,"previous_date":"1897-08-17","margin":0.9,"years_stood":23,"significance":14,"tie":false,"provisional":false,"lat":50.4,"lon":30.5331},{"id":"UPM00033946-1921-08-17-tmin_high-daily","station_id":"UPM00033946","station_name":"Simferopol","country":"UA","type":"tmin_high","timescale":"daily","date":"1921-08-17","value":19.4,"unit":"c","previous_value":17,"previous_date":"1908-08-17","margin":2.4,"years_stood":12,"significance":14,"tie":false,"provisional":false,"lat":44.7,"lon":34.1331},{"id":"ASN00039018-1921-08-17-prcp_high-daily","station_id":"ASN00039018","station_name":"Bustard Head Lighthouse","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":12.4,"unit":"mm","previous_value":7.4,"previous_date":"1901-08-17","margin":5,"years_stood":20,"significance":13,"tie":false,"provisional":false,"lat":-24.0222,"lon":151.7642},{"id":"ASN00058061-1921-08-17-prcp_high-daily","station_id":"ASN00058061","station_name":"Woodburn Post Office","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":13.2,"unit":"mm","previous_value":9.1,"previous_date":"1893-08-17","margin":4.1,"years_stood":27,"significance":13,"tie":false,"provisional":false,"lat":-29.0713,"lon":153.3449},{"id":"ASN00040253-1921-08-17-prcp_high-daily","station_id":"ASN00040253","station_name":"Woody Island","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":23.6,"unit":"mm","previous_value":16.5,"previous_date":"1909-08-17","margin":7.1,"years_stood":12,"significance":12,"tie":false,"provisional":false,"lat":-25.3,"lon":152.95},{"id":"ASN00033077-1921-08-17-prcp_high-daily","station_id":"ASN00033077","station_name":"Pacific Heights","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":1,"unit":"mm","previous_value":0,"previous_date":"1893-08-17","margin":1,"years_stood":27,"significance":11,"tie":false,"provisional":false,"lat":-23.0967,"lon":150.7342},{"id":"RSM00023711-1921-08-17-tmin_high-daily","station_id":"RSM00023711","station_name":"Troicko-Pecherskoe","country":"RU","type":"tmin_high","timescale":"daily","date":"1921-08-17","value":16.2,"unit":"c","previous_value":15,"previous_date":"1902-08-17","margin":1.2,"years_stood":19,"significance":11,"tie":false,"provisional":false,"lat":62.7,"lon":56.2},{"id":"CA001090660-1921-08-17-prcp_high-daily","station_id":"CA001090660","station_name":"Barkerville","country":"CA","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":20.8,"unit":"mm","previous_value":19.8,"previous_date":"1900-08-17","margin":1,"years_stood":20,"significance":10,"tie":false,"provisional":false,"lat":53.0667,"lon":-121.5167},{"id":"USW00024274-1921-08-17-prcp_high-daily","station_id":"USW00024274","station_name":"Portland Rfc City","country":"US","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":5.8,"unit":"mm","previous_value":3.8,"previous_date":"1913-08-17","margin":2,"years_stood":8,"significance":10,"tie":false,"provisional":false,"lat":45.5333,"lon":-122.6667},{"id":"ASN00039082-1921-08-17-prcp_high-daily","station_id":"ASN00039082","station_name":"Rockhampton Post Office","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":3.6,"unit":"mm","previous_value":2.3,"previous_date":"1909-08-17","margin":1.3,"years_stood":12,"significance":9,"tie":false,"provisional":false,"lat":-23.4,"lon":150.5},{"id":"RSM00030823-1921-08-17-prcp_high-daily","station_id":"RSM00030823","station_name":"Ulan-Ude","country":"RU","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":11.7,"unit":"mm","previous_value":7.6,"previous_date":"1915-08-17","margin":4.1,"years_stood":6,"significance":9,"tie":false,"provisional":false,"lat":51.8331,"lon":107.6},{"id":"USW00093958-1921-08-17-prcp_high-daily","station_id":"USW00093958","station_name":"Columbia Wb City","country":"US","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":19.3,"unit":"mm","previous_value":12.7,"previous_date":"1913-08-17","margin":6.6,"years_stood":8,"significance":9,"tie":false,"provisional":false,"lat":38.95,"lon":-92.3333},{"id":"ASN00035026-1921-08-17-prcp_high-daily","station_id":"ASN00035026","station_name":"Duaringa Post Office","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":8.9,"unit":"mm","previous_value":5.1,"previous_date":"1909-08-17","margin":3.8,"years_stood":12,"significance":8,"tie":false,"provisional":false,"lat":-23.7139,"lon":149.6725},{"id":"ASN00040068-1921-08-17-prcp_high-daily","station_id":"ASN00040068","station_name":"Double Island Point Lighthouse","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":10.2,"unit":"mm","previous_value":7.6,"previous_date":"1909-08-17","margin":2.6,"years_stood":12,"significance":8,"tie":false,"provisional":false,"lat":-25.9319,"lon":153.1906},{"id":"ASN00040126-1921-08-17-prcp_high-daily","station_id":"ASN00040126","station_name":"Maryborough","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":6.4,"unit":"mm","previous_value":4.3,"previous_date":"1909-08-17","margin":2.1,"years_stood":12,"significance":8,"tie":false,"provisional":false,"lat":-25.5161,"lon":152.7156},{"id":"ASN00068043-1921-08-17-prcp_high-daily","station_id":"ASN00068043","station_name":"Minto Surrey Street","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":12.7,"unit":"mm","previous_value":7.6,"previous_date":"1920-08-17","margin":5.1,"years_stood":0,"significance":8,"tie":false,"provisional":false,"lat":-34.0283,"lon":150.8433},{"id":"USW00024157-1921-08-17-prcp_high-daily","station_id":"USW00024157","station_name":"Spokane Intl AP","country":"US","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":3.3,"unit":"mm","previous_value":1.5,"previous_date":"1916-08-17","margin":1.8,"years_stood":4,"significance":7,"tie":false,"provisional":false,"lat":47.6217,"lon":-117.5281},{"id":"ASN00026026-1921-08-17-tmin_high-daily","station_id":"ASN00026026","station_name":"Robe Comparison","country":"AU","type":"tmin_high","timescale":"daily","date":"1921-08-17","value":11.9,"unit":"c","previous_value":11.8,"previous_date":"1910-08-17","margin":0.1,"years_stood":11,"significance":6,"tie":false,"provisional":false,"lat":-37.1628,"lon":139.756},{"id":"ASN00039070-1921-08-17-prcp_high-daily","station_id":"ASN00039070","station_name":"Mt Perry the Pines","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":8.6,"unit":"mm","previous_value":7.9,"previous_date":"1909-08-17","margin":0.7,"years_stood":12,"significance":6,"tie":false,"provisional":false,"lat":-25.1694,"lon":151.6375},{"id":"ASN00033050-1921-08-17-prcp_high-daily","station_id":"ASN00033050","station_name":"Marlborough Post Office","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":0.8,"unit":"mm","previous_value":0.8,"previous_date":"1893-08-17","margin":0,"years_stood":27,"significance":3,"tie":true,"provisional":false,"lat":-22.8131,"lon":149.89},{"id":"ASN00039085-1921-08-17-prcp_high-daily","station_id":"ASN00039085","station_name":"Sandy Cape Lighthouse","country":"AU","type":"prcp_high","timescale":"daily","date":"1921-08-17","value":6.6,"unit":"mm","previous_value":5.8,"previous_date":"1919-08-17","margin":0.8,"years_stood":2,"significance":3,"tie":false,"provisional":false,"lat":-24.7298,"lon":153.2089},{"id":"TSE00147769-1921-08-17-tmax_low-daily","station_id":"TSE00147769","station_name":"Tunis","country":"TN","type":"tmax_low","timescale":"daily","date":"1921-08-17","value":28,"unit":"c","previous_value":28,"previous_date":"1901-08-17","margin":0,"years_stood":20,"significance":2,"tie":true,"provisional":false,"lat":36.8,"lon":10.17},{"id":"USC00220488-1921-08-17-tmin_high-daily","station_id":"USC00220488","station_name":"Batesville","country":"US","type":"tmin_high","timescale":"daily","date":"1921-08-17","value":23.3,"unit":"c","previous_value":23.3,"previous_date":"1895-08-17","margin":0,"years_stood":25,"significance":2,"tie":true,"provisional":false,"lat":34.3161,"lon":-89.9558},{"id":"CA001105550-1921-08-17-tmax_low-daily","station_id":"CA001105550","station_name":"New Westminster","country":"CA","type":"tmax_low","timescale":"daily","date":"1921-08-17","value":16.1,"unit":"c","previous_value":16.1,"previous_date":"1912-08-17","margin":0,"years_stood":8,"significance":1,"tie":true,"provisional":false,"lat":49.2167,"lon":-122.9333}]}