{"title":"Records on 1911-04-30","description":"Every record set or tied on 1911-04-30.","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/1911-04-30/","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":"SWM00002080-1911-04-30-prcp_high-daily","station_id":"SWM00002080","station_name":"Karesuando","country":"SE","type":"prcp_high","timescale":"daily","date":"1911-04-30","value":8.2,"unit":"mm","previous_value":2.5,"previous_date":"1892-04-30","margin":5.7,"years_stood":18,"significance":20,"tie":false,"provisional":false,"lat":68.4419,"lon":22.4503},{"id":"SW000010537-1911-04-30-prcp_high-daily","station_id":"SW000010537","station_name":"Falun","country":"SE","type":"prcp_high","timescale":"daily","date":"1911-04-30","value":6.3,"unit":"mm","previous_value":5.3,"previous_date":"1868-04-30","margin":1,"years_stood":42,"significance":19,"tie":false,"provisional":false,"lat":60.6167,"lon":15.6167},{"id":"CA006164297-1911-04-30-tmin_high-monthly","station_id":"CA006164297","station_name":"Lakefield","country":"CA","type":"tmin_high","timescale":"monthly","date":"1911-04-30","value":13.9,"unit":"c","previous_value":13.3,"previous_date":"1897-04-24","margin":0.6,"years_stood":14,"significance":18,"tie":false,"provisional":false,"lat":44.4667,"lon":-78.2333},{"id":"AGE00135039-1911-04-30-tmin_high-daily","station_id":"AGE00135039","station_name":"Oran-Hopital 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(Tnk)","country":"ZA","type":"prcp_high","timescale":"daily","date":"1911-04-30","value":10.7,"unit":"mm","previous_value":2.3,"previous_date":"1898-04-30","margin":8.4,"years_stood":12,"significance":15,"tie":false,"provisional":false,"lat":-31.42,"lon":23.95},{"id":"SF001012570-1911-04-30-prcp_high-daily","station_id":"SF001012570","station_name":"Cathcart","country":"ZA","type":"prcp_high","timescale":"daily","date":"1911-04-30","value":10.7,"unit":"mm","previous_value":6.9,"previous_date":"1882-04-30","margin":3.8,"years_stood":28,"significance":14,"tie":false,"provisional":false,"lat":-32.28,"lon":27.15},{"id":"SF000951190-1911-04-30-prcp_high-daily","station_id":"SF000951190","station_name":"Aberdeen (Tnk)","country":"ZA","type":"prcp_high","timescale":"daily","date":"1911-04-30","value":4.6,"unit":"mm","previous_value":0.3,"previous_date":"1903-04-30","margin":4.3,"years_stood":8,"significance":13,"tie":false,"provisional":false,"lat":-32.48,"lon":24.07},{"id":"SF001130250-1911-04-30-prcp_high-daily","station_id":"SF001130250","station_name":"Fraserburg","country":"ZA","type":"prcp_high","timescale":"daily","date":"1911-04-30","value":1.5,"unit":"mm","previous_value":0.5,"previous_date":"1881-04-30","margin":1,"years_stood":29,"significance":12,"tie":false,"provisional":false,"lat":-31.917,"lon":21.517},{"id":"SF001485170-1911-04-30-prcp_high-daily","station_id":"SF001485170","station_name":"Jamestown","country":"ZA","type":"prcp_high","timescale":"daily","date":"1911-04-30","value":25.4,"unit":"mm","previous_value":23.9,"previous_date":"1886-04-30","margin":1.5,"years_stood":24,"significance":12,"tie":false,"provisional":false,"lat":-31.117,"lon":26.8},{"id":"USW00053875-1911-04-30-tmin_high-daily","station_id":"USW00053875","station_name":"Chattanooga Wb 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