{"title":"Records on 1911-06-30","description":"Every record set or tied on 1911-06-30.","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/1911-06-30/","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":"CA008206490-1911-06-30-tmin_high-monthly","station_id":"CA008206490","station_name":"Yarmouth","country":"CA","type":"tmin_high","timescale":"monthly","date":"1911-06-30","value":17.8,"unit":"c","previous_value":16.1,"previous_date":"1885-06-29","margin":1.7,"years_stood":25,"significance":27,"tie":false,"provisional":false,"lat":43.8333,"lon":-66.0333},{"id":"USC00474375-1911-06-30-tmin_high-daily","station_id":"USC00474375","station_name":"La Crosse Wb City","country":"US","type":"tmin_high","timescale":"daily","date":"1911-06-30","value":22.8,"unit":"c","previous_value":21.1,"previous_date":"1878-06-30","margin":1.7,"years_stood":32,"significance":17,"tie":false,"provisional":false,"lat":43.8167,"lon":-91.25},{"id":"USW00014936-1911-06-30-tmax_high-monthly","station_id":"USW00014936","station_name":"Huron Rgnl AP","country":"US","type":"tmax_high","timescale":"monthly","date":"1911-06-30","value":37.8,"unit":"c","previous_value":37.2,"previous_date":"1898-06-28","margin":0.6,"years_stood":13,"significance":17,"tie":false,"provisional":false,"lat":44.3792,"lon":-98.2228},{"id":"CA008205988-1911-06-30-tmin_high-monthly","station_id":"CA008205988","station_name":"Truro","country":"CA","type":"tmin_high","timescale":"monthly","date":"1911-06-30","value":20,"unit":"c","previous_value":18.9,"previous_date":"1911-06-29","margin":1.1,"years_stood":0,"significance":15,"tie":false,"provisional":false,"lat":45.35,"lon":-63.3},{"id":"ASN00058024-1911-06-30-prcp_high-daily","station_id":"ASN00058024","station_name":"Grafton City Council","country":"AU","type":"prcp_high","timescale":"daily","date":"1911-06-30","value":7.6,"unit":"mm","previous_value":3,"previous_date":"1882-06-30","margin":4.6,"years_stood":28,"significance":14,"tie":false,"provisional":false,"lat":-29.7,"lon":152.9},{"id":"USW00014936-1911-06-30-tmin_high-daily","station_id":"USW00014936","station_name":"Huron Rgnl AP","country":"US","type":"tmin_high","timescale":"daily","date":"1911-06-30","value":23.3,"unit":"c","previous_value":21.1,"previous_date":"1888-06-30","margin":2.2,"years_stood":22,"significance":14,"tie":false,"provisional":false,"lat":44.3792,"lon":-98.2228},{"id":"USW00024274-1911-06-30-tmax_low-daily","station_id":"USW00024274","station_name":"Portland Rfc City","country":"US","type":"tmax_low","timescale":"daily","date":"1911-06-30","value":16.7,"unit":"c","previous_value":18.9,"previous_date":"1892-06-30","margin":2.2,"years_stood":18,"significance":12,"tie":false,"provisional":false,"lat":45.5333,"lon":-122.6667},{"id":"CA003012195-1911-06-30-tmax_low-daily","station_id":"CA003012195","station_name":"Edmonton","country":"CA","type":"tmax_low","timescale":"daily","date":"1911-06-30","value":14.4,"unit":"c","previous_value":16.1,"previous_date":"1901-06-30","margin":1.7,"years_stood":9,"significance":8,"tie":false,"provisional":false,"lat":53.55,"lon":-113.5},{"id":"CA008206490-1911-06-30-tmax_high-monthly","station_id":"CA008206490","station_name":"Yarmouth","country":"CA","type":"tmax_high","timescale":"monthly","date":"1911-06-30","value":26.1,"unit":"c","previous_value":26.1,"previous_date":"1886-06-22","margin":0,"years_stood":25,"significance":5,"tie":true,"provisional":false,"lat":43.8333,"lon":-66.0333},{"id":"AGE00135039-1911-06-30-tmax_low-daily","station_id":"AGE00135039","station_name":"Oran-Hopital Militaire","country":"DZ","type":"tmax_low","timescale":"daily","date":"1911-06-30","value":23,"unit":"c","previous_value":23,"previous_date":"1889-06-30","margin":0,"years_stood":21,"significance":3,"tie":true,"provisional":false,"lat":35.7297,"lon":0.65},{"id":"CA008202198-1911-06-30-tmin_high-daily","station_id":"CA008202198","station_name":"Halifax","country":"CA","type":"tmin_high","timescale":"daily","date":"1911-06-30","value":16.1,"unit":"c","previous_value":16.1,"previous_date":"1878-06-30","margin":0,"years_stood":32,"significance":3,"tie":true,"provisional":false,"lat":44.65,"lon":-63.6},{"id":"CA008100990-1911-06-30-tmin_high-daily","station_id":"CA008100990","station_name":"Chatham","country":"CA","type":"tmin_high","timescale":"daily","date":"1911-06-30","value":18.3,"unit":"c","previous_value":18.3,"previous_date":"1901-06-30","margin":0,"years_stood":9,"significance":1,"tie":true,"provisional":false,"lat":47.05,"lon":-65.4833}]}