{"title":"Records on 1855-12-20","description":"Every record set or tied on 1855-12-20.","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/1855-12-20/","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":"ITE00100554-1855-12-20-tmax_low-daily","station_id":"ITE00100554","station_name":"Milan","country":"IT","type":"tmax_low","timescale":"daily","date":"1855-12-20","value":-5.4,"unit":"c","previous_value":-1.9,"previous_date":"1808-12-20","margin":3.5,"years_stood":46,"significance":34,"tie":false,"provisional":false,"lat":45.4717,"lon":9.1892},{"id":"ITE00100554-1855-12-20-tmin_low-daily","station_id":"ITE00100554","station_name":"Milan","country":"IT","type":"tmin_low","timescale":"daily","date":"1855-12-20","value":-11.9,"unit":"c","previous_value":-7.5,"previous_date":"1815-12-20","margin":4.4,"years_stood":40,"significance":34,"tie":false,"provisional":false,"lat":45.4717,"lon":9.1892},{"id":"EZE00100082-1855-12-20-tmin_low-daily","station_id":"EZE00100082","station_name":"Praha-Klementinum","country":"CZ","type":"tmin_low","timescale":"daily","date":"1855-12-20","value":-17.2,"unit":"c","previous_value":-15.3,"previous_date":"1788-12-20","margin":1.9,"years_stood":66,"significance":31,"tie":false,"provisional":false,"lat":50.0864,"lon":14.4164},{"id":"EZE00100082-1855-12-20-tmax_low-daily","station_id":"EZE00100082","station_name":"Praha-Klementinum","country":"CZ","type":"tmax_low","timescale":"daily","date":"1855-12-20","value":-11.7,"unit":"c","previous_value":-9.9,"previous_date":"1799-12-20","margin":1.8,"years_stood":55,"significance":27,"tie":false,"provisional":false,"lat":50.0864,"lon":14.4164},{"id":"UK000056225-1855-12-20-tmax_low-daily","station_id":"UK000056225","station_name":"Oxford","country":"GB","type":"tmax_low","timescale":"daily","date":"1855-12-20","value":-3.8,"unit":"c","previous_value":0,"previous_date":"1822-12-20","margin":3.8,"years_stood":32,"significance":22,"tie":false,"provisional":false,"lat":51.7667,"lon":-1.2667},{"id":"GM000004204-1855-12-20-tmax_low-daily","station_id":"GM000004204","station_name":"Jena Sternwarte","country":"DE","type":"tmax_low","timescale":"daily","date":"1855-12-20","value":-10.5,"unit":"c","previous_value":-5,"previous_date":"1840-12-20","margin":5.5,"years_stood":14,"significance":17,"tie":false,"provisional":false,"lat":50.9267,"lon":11.5842},{"id":"ITE00100550-1855-12-20-tmin_low-daily","station_id":"ITE00100550","station_name":"Bologna","country":"IT","type":"tmin_low","timescale":"daily","date":"1855-12-20","value":-9,"unit":"c","previous_value":-6.3,"previous_date":"1846-12-20","margin":2.7,"years_stood":8,"significance":14,"tie":false,"provisional":false,"lat":44.5,"lon":11.3458},{"id":"GM000004204-1855-12-20-tmin_low-daily","station_id":"GM000004204","station_name":"Jena Sternwarte","country":"DE","type":"tmin_low","timescale":"daily","date":"1855-12-20","value":-17.1,"unit":"c","previous_value":-13,"previous_date":"1840-12-20","margin":4.1,"years_stood":14,"significance":13,"tie":false,"provisional":false,"lat":50.9267,"lon":11.5842}]}