{"title":"Records on 1909-05-11","description":"Every record set or tied on 1909-05-11.","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/1909-05-11/","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":"SF002408910-1909-05-11-prcp_high-daily","station_id":"SF002408910","station_name":"Durban-Botanical Gardens","country":"ZA","type":"prcp_high","timescale":"daily","date":"1909-05-11","value":27.7,"unit":"mm","previous_value":2,"previous_date":"1880-05-11","margin":25.7,"years_stood":28,"significance":33,"tie":false,"provisional":false,"lat":-29.85,"lon":31},{"id":"CA008100990-1909-05-11-tmin_high-daily","station_id":"CA008100990","station_name":"Chatham","country":"CA","type":"tmin_high","timescale":"daily","date":"1909-05-11","value":13.9,"unit":"c","previous_value":10,"previous_date":"1880-05-11","margin":3.9,"years_stood":28,"significance":21,"tie":false,"provisional":false,"lat":47.05,"lon":-65.4833},{"id":"CA007056067-1909-05-11-prcp_high-daily","station_id":"CA007056067","station_name":"Pointe Au Pere","country":"CA","type":"prcp_high","timescale":"daily","date":"1909-05-11","value":33.5,"unit":"mm","previous_value":23.4,"previous_date":"1904-05-11","margin":10.1,"years_stood":4,"significance":19,"tie":false,"provisional":false,"lat":48.5,"lon":-68.4833},{"id":"CA006136643-1909-05-11-prcp_high-daily","station_id":"CA006136643","station_name":"Port Dover","country":"CA","type":"prcp_high","timescale":"daily","date":"1909-05-11","value":19.3,"unit":"mm","previous_value":13.7,"previous_date":"1899-05-11","margin":5.6,"years_stood":9,"significance":13,"tie":false,"provisional":false,"lat":42.7833,"lon":-80.2167},{"id":"USW00024274-1909-05-11-tmax_low-daily","station_id":"USW00024274","station_name":"Portland Rfc City","country":"US","type":"tmax_low","timescale":"daily","date":"1909-05-11","value":12.8,"unit":"c","previous_value":13.3,"previous_date":"1879-05-11","margin":0.5,"years_stood":29,"significance":11,"tie":false,"provisional":false,"lat":45.5333,"lon":-122.6667},{"id":"CA008104800-1909-05-11-prcp_high-daily","station_id":"CA008104800","station_name":"Saint John","country":"CA","type":"prcp_high","timescale":"daily","date":"1909-05-11","value":18.8,"unit":"mm","previous_value":13.2,"previous_date":"1901-05-11","margin":5.6,"years_stood":8,"significance":10,"tie":false,"provisional":false,"lat":45.2833,"lon":-66.0833},{"id":"CA008202198-1909-05-11-tmin_high-daily","station_id":"CA008202198","station_name":"Halifax","country":"CA","type":"tmin_high","timescale":"daily","date":"1909-05-11","value":7.2,"unit":"c","previous_value":6.7,"previous_date":"1890-05-11","margin":0.5,"years_stood":18,"significance":9,"tie":false,"provisional":false,"lat":44.65,"lon":-63.6},{"id":"USC00034251-1909-05-11-tmin_low-daily","station_id":"USC00034251","station_name":"Little Rock St Capitol","country":"US","type":"tmin_low","timescale":"daily","date":"1909-05-11","value":8.9,"unit":"c","previous_value":9.4,"previous_date":"1892-05-11","margin":0.5,"years_stood":16,"significance":9,"tie":false,"provisional":false,"lat":34.75,"lon":-92.2833},{"id":"SF000800720-1909-05-11-prcp_high-daily","station_id":"SF000800720","station_name":"Kei Road (Pol)","country":"ZA","type":"prcp_high","timescale":"daily","date":"1909-05-11","value":3,"unit":"mm","previous_value":1,"previous_date":"1894-05-11","margin":2,"years_stood":14,"significance":8,"tie":false,"provisional":false,"lat":-32.7,"lon":27.53},{"id":"USW00053875-1909-05-11-tmax_low-daily","station_id":"USW00053875","station_name":"Chattanooga Wb City","country":"US","type":"tmax_low","timescale":"daily","date":"1909-05-11","value":20,"unit":"c","previous_value":21.1,"previous_date":"1907-05-11","margin":1.1,"years_stood":2,"significance":5,"tie":false,"provisional":false,"lat":35.0667,"lon":-85.3},{"id":"USW00024128-1909-05-11-tmin_low-daily","station_id":"USW00024128","station_name":"Winnemucca AP","country":"US","type":"tmin_low","timescale":"daily","date":"1909-05-11","value":-6.7,"unit":"c","previous_value":-6.7,"previous_date":"1887-05-11","margin":0,"years_stood":21,"significance":2,"tie":true,"provisional":false,"lat":40.9017,"lon":-117.8081},{"id":"CA008300298-1909-05-11-tmin_high-daily","station_id":"CA008300298","station_name":"Charlottetown","country":"CA","type":"tmin_high","timescale":"daily","date":"1909-05-11","value":10,"unit":"c","previous_value":10,"previous_date":"1895-05-11","margin":0,"years_stood":13,"significance":1,"tie":true,"provisional":false,"lat":46.2333,"lon":-63.1667}]}