{"title":"Records on 1899-04-30","description":"Every record set or tied on 1899-04-30.","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/1899-04-30/","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":"SWE00139028-1899-04-30-prcp_high-daily","station_id":"SWE00139028","station_name":"Vasteras-Hasslo","country":"SE","type":"prcp_high","timescale":"daily","date":"1899-04-30","value":16.5,"unit":"mm","previous_value":4.9,"previous_date":"1874-04-30","margin":11.6,"years_stood":24,"significance":20,"tie":false,"provisional":false,"lat":59.59,"lon":16.63},{"id":"ASN00023000-1899-04-30-prcp_high-daily","station_id":"ASN00023000","station_name":"Adelaide West Terrace","country":"AU","type":"prcp_high","timescale":"daily","date":"1899-04-30","value":22.6,"unit":"mm","previous_value":14.5,"previous_date":"1858-04-30","margin":8.1,"years_stood":40,"significance":20,"tie":false,"provisional":false,"lat":-34.9254,"lon":138.5869},{"id":"USW00014734-1899-04-30-tmax_high-daily","station_id":"USW00014734","station_name":"Newark Liberty Intl AP","country":"US","type":"tmax_high","timescale":"daily","date":"1899-04-30","value":27.2,"unit":"c","previous_value":25,"previous_date":"1858-04-30","margin":2.2,"years_stood":40,"significance":20,"tie":false,"provisional":false,"lat":40.6828,"lon":-74.1692},{"id":"USC00271682-1899-04-30-tmax_high-daily","station_id":"USC00271682","station_name":"Concord","country":"US","type":"tmax_high","timescale":"daily","date":"1899-04-30","value":30,"unit":"c","previous_value":26.7,"previous_date":"1870-04-30","margin":3.3,"years_stood":28,"significance":16,"tie":false,"provisional":false,"lat":43.205,"lon":-71.535},{"id":"CA006158350-1899-04-30-tmin_high-daily","station_id":"CA006158350","station_name":"Toronto","country":"CA","type":"tmin_high","timescale":"daily","date":"1899-04-30","value":10,"unit":"c","previous_value":8.9,"previous_date":"1878-04-30","margin":1.1,"years_stood":20,"significance":14,"tie":false,"provisional":false,"lat":43.6667,"lon":-79.4},{"id":"ASN00026005-1899-04-30-prcp_high-daily","station_id":"ASN00026005","station_name":"Cape Northumberland","country":"AU","type":"prcp_high","timescale":"daily","date":"1899-04-30","value":20.1,"unit":"mm","previous_value":14.7,"previous_date":"1895-04-30","margin":5.4,"years_stood":4,"significance":12,"tie":false,"provisional":false,"lat":-38.0573,"lon":140.6725},{"id":"CA006158350-1899-04-30-tmax_high-daily","station_id":"CA006158350","station_name":"Toronto","country":"CA","type":"tmax_high","timescale":"daily","date":"1899-04-30","value":25.6,"unit":"c","previous_value":23.9,"previous_date":"1891-04-30","margin":1.7,"years_stood":8,"significance":11,"tie":false,"provisional":false,"lat":43.6667,"lon":-79.4},{"id":"SWE00139430-1899-04-30-prcp_high-daily","station_id":"SWE00139430","station_name":"Gavle","country":"SE","type":"prcp_high","timescale":"daily","date":"1899-04-30","value":4.4,"unit":"mm","previous_value":1.2,"previous_date":"1896-04-30","margin":3.2,"years_stood":2,"significance":10,"tie":false,"provisional":false,"lat":60.65,"lon":17.17},{"id":"USC00474966-1899-04-30-prcp_high-daily","station_id":"USC00474966","station_name":"Madison Wb City","country":"US","type":"prcp_high","timescale":"daily","date":"1899-04-30","value":17.3,"unit":"mm","previous_value":15.7,"previous_date":"1892-04-30","margin":1.6,"years_stood":6,"significance":6,"tie":false,"provisional":false,"lat":43.0833,"lon":-89.4},{"id":"USW00094728-1899-04-30-tmax_high-daily","station_id":"USW00094728","station_name":"Ny City Cntrl Park","country":"US","type":"tmax_high","timescale":"daily","date":"1899-04-30","value":24.4,"unit":"c","previous_value":24.4,"previous_date":"1879-04-30","margin":0,"years_stood":20,"significance":2,"tie":true,"provisional":false,"lat":40.7789,"lon":-73.9692},{"id":"USW00094728-1899-04-30-tmin_high-daily","station_id":"USW00094728","station_name":"Ny City Cntrl Park","country":"US","type":"tmin_high","timescale":"daily","date":"1899-04-30","value":12.8,"unit":"c","previous_value":12.8,"previous_date":"1879-04-30","margin":0,"years_stood":20,"significance":2,"tie":true,"provisional":false,"lat":40.7789,"lon":-73.9692}]}