{"title":"Records on 1909-05-30","description":"Every record set or tied on 1909-05-30.","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/1909-05-30/","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":"USC00456109-1909-05-30-prcp_high-daily","station_id":"USC00456109","station_name":"Olympia Priest Pt Park","country":"US","type":"prcp_high","timescale":"daily","date":"1909-05-30","value":20.3,"unit":"mm","previous_value":3.6,"previous_date":"1898-05-30","margin":16.7,"years_stood":10,"significance":20,"tie":false,"provisional":false,"lat":47.0667,"lon":-122.8833},{"id":"CA005023243-1909-05-30-tmin_high-daily","station_id":"CA005023243","station_name":"Winnipeg St Johns Coll","country":"CA","type":"tmin_high","timescale":"daily","date":"1909-05-30","value":14.4,"unit":"c","previous_value":12.8,"previous_date":"1876-05-30","margin":1.6,"years_stood":32,"significance":15,"tie":false,"provisional":false,"lat":49.8833,"lon":-97.1167},{"id":"CA008300298-1909-05-30-tmax_low-daily","station_id":"CA008300298","station_name":"Charlottetown","country":"CA","type":"tmax_low","timescale":"daily","date":"1909-05-30","value":7.2,"unit":"c","previous_value":7.8,"previous_date":"1876-05-30","margin":0.6,"years_stood":32,"significance":13,"tie":false,"provisional":false,"lat":46.2333,"lon":-63.1667},{"id":"NOE00105483-1909-05-30-prcp_high-daily","station_id":"NOE00105483","station_name":"Oksoey Fyr","country":"NO","type":"prcp_high","timescale":"daily","date":"1909-05-30","value":21,"unit":"mm","previous_value":19,"previous_date":"1898-05-30","margin":2,"years_stood":10,"significance":8,"tie":false,"provisional":false,"lat":58.0667,"lon":8.0506},{"id":"USW00024274-1909-05-30-prcp_high-daily","station_id":"USW00024274","station_name":"Portland Rfc City","country":"US","type":"prcp_high","timescale":"daily","date":"1909-05-30","value":10.2,"unit":"mm","previous_value":8.4,"previous_date":"1902-05-30","margin":1.8,"years_stood":7,"significance":8,"tie":false,"provisional":false,"lat":45.5333,"lon":-122.6667},{"id":"ASN00090015-1909-05-30-tmin_high-daily","station_id":"ASN00090015","station_name":"Cape Otway Lighthouse","country":"AU","type":"tmin_high","timescale":"daily","date":"1909-05-30","value":12.8,"unit":"c","previous_value":12.8,"previous_date":"1893-05-30","margin":0,"years_stood":15,"significance":2,"tie":true,"provisional":false,"lat":-38.8556,"lon":143.5128}]}