{"title":"Records on 1917-05-18","description":"Every record set or tied on 1917-05-18.","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/1917-05-18/","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":"UKE00156852-1917-05-18-prcp_high-daily","station_id":"UKE00156852","station_name":"Durham","country":"GB","type":"prcp_high","timescale":"daily","date":"1917-05-18","value":17.2,"unit":"mm","previous_value":5.3,"previous_date":"1910-05-18","margin":11.9,"years_stood":7,"significance":20,"tie":false,"provisional":false,"lat":54.7678,"lon":-1.5842},{"id":"AGE00147716-1917-05-18-prcp_high-daily","station_id":"AGE00147716","station_name":"Nemours (Ghazaouet)","country":"DZ","type":"prcp_high","timescale":"daily","date":"1917-05-18","value":29.3,"unit":"mm","previous_value":13,"previous_date":"1889-05-18","margin":16.3,"years_stood":27,"significance":29,"tie":false,"provisional":false,"lat":35.1,"lon":-1.85},{"id":"CE000434730-1917-05-18-tmin_low-monthly","station_id":"CE000434730","station_name":"Nuwara Eliya","country":"LK","type":"tmin_low","timescale":"monthly","date":"1917-05-18","value":2.2,"unit":"c","previous_value":2.8,"previous_date":"1890-05-27","margin":0.6,"years_stood":26,"significance":24,"tie":false,"provisional":false,"lat":6.967,"lon":80.767},{"id":"ASN00018079-1917-05-18-prcp_high-daily","station_id":"ASN00018079","station_name":"Streaky Bay","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-05-18","value":16,"unit":"mm","previous_value":8.6,"previous_date":"1894-05-18","margin":7.4,"years_stood":22,"significance":20,"tie":false,"provisional":false,"lat":-32.7963,"lon":134.2116},{"id":"RSM00027595-1917-05-18-prcp_high-daily","station_id":"RSM00027595","station_name":"Kazan","country":"RU","type":"prcp_high","timescale":"daily","date":"1917-05-18","value":17.2,"unit":"mm","previous_value":12,"previous_date":"1912-05-18","margin":5.2,"years_stood":4,"significance":16,"tie":false,"provisional":false,"lat":55.7331,"lon":49.2},{"id":"ASN00019023-1917-05-18-prcp_high-daily","station_id":"ASN00019023","station_name":"Mannanarie Post Office","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-05-18","value":12.7,"unit":"mm","previous_value":6.4,"previous_date":"1914-05-18","margin":6.3,"years_stood":3,"significance":15,"tie":false,"provisional":false,"lat":-33.0453,"lon":138.6178},{"id":"ASN00022006-1917-05-18-prcp_high-daily","station_id":"ASN00022006","station_name":"Kadina","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-05-18","value":12.2,"unit":"mm","previous_value":8.4,"previous_date":"1895-05-18","margin":3.8,"years_stood":21,"significance":15,"tie":false,"provisional":false,"lat":-33.9551,"lon":137.6953},{"id":"ASN00017014-1917-05-18-prcp_high-daily","station_id":"ASN00017014","station_name":"Blinman","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-05-18","value":3.6,"unit":"mm","previous_value":2.5,"previous_date":"1888-05-18","margin":1.1,"years_stood":28,"significance":13,"tie":false,"provisional":false,"lat":-31.0939,"lon":138.6786},{"id":"ASN00030024-1917-05-18-prcp_high-daily","station_id":"ASN00030024","station_name":"Hughenden Post Office","country":"AU","type":"prcp_high","timescale":"daily","date":"1917-05-18","value":3,"unit":"mm","previous_value":0,"previous_date":"1885-05-18","margin":3,"years_stood":31,"significance":13,"tie":false,"provisional":false,"lat":-20.8447,"lon":144.1986},{"id":"FR013055001-1917-05-18-prcp_high-daily","station_id":"FR013055001","station_name":"Marseille Obs. 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