{"title":"Records on 1909-05-20","description":"Every record set or tied on 1909-05-20.","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/1909-05-20/","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":"USC00090430-1909-05-20-prcp_high-daily","station_id":"USC00090430","station_name":"Athens","country":"US","type":"prcp_high","timescale":"daily","date":"1909-05-20","value":59.2,"unit":"mm","previous_value":24.1,"previous_date":"1885-05-20","margin":35.1,"years_stood":23,"significance":36,"tie":false,"provisional":false,"lat":33.9667,"lon":-83.3833},{"id":"USC00456109-1909-05-20-tmin_low-daily","station_id":"USC00456109","station_name":"Olympia Priest Pt Park","country":"US","type":"tmin_low","timescale":"daily","date":"1909-05-20","value":-0.6,"unit":"c","previous_value":2.2,"previous_date":"1898-05-20","margin":2.8,"years_stood":10,"significance":15,"tie":false,"provisional":false,"lat":47.0667,"lon":-122.8833},{"id":"ASN00061035-1909-05-20-prcp_high-daily","station_id":"ASN00061035","station_name":"Maitland West","country":"AU","type":"prcp_high","timescale":"daily","date":"1909-05-20","value":8.4,"unit":"mm","previous_value":7.9,"previous_date":"1876-05-20","margin":0.5,"years_stood":32,"significance":14,"tie":false,"provisional":false,"lat":-32.7,"lon":151.6},{"id":"ASN00086071-1909-05-20-tmax_low-daily","station_id":"ASN00086071","station_name":"Melbourne Regional Office","country":"AU","type":"tmax_low","timescale":"daily","date":"1909-05-20","value":10.3,"unit":"c","previous_value":11.7,"previous_date":"1892-05-20","margin":1.4,"years_stood":16,"significance":14,"tie":false,"provisional":false,"lat":-37.8075,"lon":144.97},{"id":"USW00053875-1909-05-20-prcp_high-daily","station_id":"USW00053875","station_name":"Chattanooga Wb City","country":"US","type":"prcp_high","timescale":"daily","date":"1909-05-20","value":18.3,"unit":"mm","previous_value":14.7,"previous_date":"1880-05-20","margin":3.6,"years_stood":28,"significance":13,"tie":false,"provisional":false,"lat":35.0667,"lon":-85.3},{"id":"CA008101170-1909-05-20-tmin_low-daily","station_id":"CA008101170","station_name":"Dalhousie","country":"CA","type":"tmin_low","timescale":"daily","date":"1909-05-20","value":-3.3,"unit":"c","previous_value":-1.7,"previous_date":"1891-05-20","margin":1.6,"years_stood":17,"significance":12,"tie":false,"provisional":false,"lat":48.0667,"lon":-66.3667},{"id":"USW00013724-1909-05-20-tmax_low-daily","station_id":"USW00013724","station_name":"Atlantic City Marina","country":"US","type":"tmax_low","timescale":"daily","date":"1909-05-20","value":12.2,"unit":"c","previous_value":12.8,"previous_date":"1895-05-20","margin":0.6,"years_stood":13,"significance":8,"tie":false,"provisional":false,"lat":39.3778,"lon":-74.4236},{"id":"USC00319462-1909-05-20-prcp_high-daily","station_id":"USC00319462","station_name":"Wilmington Wb City","country":"US","type":"prcp_high","timescale":"daily","date":"1909-05-20","value":36.6,"unit":"mm","previous_value":33.3,"previous_date":"1901-05-20","margin":3.3,"years_stood":8,"significance":7,"tie":false,"provisional":false,"lat":34.2333,"lon":-77.95},{"id":"ASN00061079-1909-05-20-prcp_high-daily","station_id":"ASN00061079","station_name":"Wingen (Murrulla)","country":"AU","type":"prcp_high","timescale":"daily","date":"1909-05-20","value":5.6,"unit":"mm","previous_value":2,"previous_date":"1908-05-20","margin":3.6,"years_stood":0,"significance":6,"tie":false,"provisional":false,"lat":-31.8679,"lon":150.8809},{"id":"USC00319462-1909-05-20-tmax_low-daily","station_id":"USC00319462","station_name":"Wilmington Wb City","country":"US","type":"tmax_low","timescale":"daily","date":"1909-05-20","value":22.2,"unit":"c","previous_value":22.2,"previous_date":"1888-05-20","margin":0,"years_stood":20,"significance":2,"tie":true,"provisional":false,"lat":34.2333,"lon":-77.95}]}