{"title":"Records on 1909-05-18","description":"Every record set or tied on 1909-05-18.","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/1909-05-18/","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":"SWE00100026-1909-05-18-prcp_high-daily","station_id":"SWE00100026","station_name":"Oestersund-Froesoen","country":"SE","type":"prcp_high","timescale":"daily","date":"1909-05-18","value":17.7,"unit":"mm","previous_value":5.7,"previous_date":"1863-05-18","margin":12,"years_stood":45,"significance":20,"tie":false,"provisional":false,"lat":63.1831,"lon":14.4831},{"id":"SWE00139720-1909-05-18-prcp_high-daily","station_id":"SWE00139720","station_name":"Sveg","country":"SE","type":"prcp_high","timescale":"daily","date":"1909-05-18","value":16.1,"unit":"mm","previous_value":11.7,"previous_date":"1883-05-18","margin":4.4,"years_stood":25,"significance":19,"tie":false,"provisional":false,"lat":62.0192,"lon":14.1903},{"id":"ASN00052026-1909-05-18-tmin_low-daily","station_id":"ASN00052026","station_name":"Walgett Council Depot","country":"AU","type":"tmin_low","timescale":"daily","date":"1909-05-18","value":-0.6,"unit":"c","previous_value":2.2,"previous_date":"1893-05-18","margin":2.8,"years_stood":15,"significance":14,"tie":false,"provisional":false,"lat":-30.0236,"lon":148.1218},{"id":"ASN00074005-1909-05-18-prcp_high-daily","station_id":"ASN00074005","station_name":"Barellan Post Office","country":"AU","type":"prcp_high","timescale":"daily","date":"1909-05-18","value":10.9,"unit":"mm","previous_value":5.3,"previous_date":"1890-05-18","margin":5.6,"years_stood":18,"significance":14,"tie":false,"provisional":false,"lat":-34.2849,"lon":146.5714},{"id":"CA008100990-1909-05-18-tmax_low-daily","station_id":"CA008100990","station_name":"Chatham","country":"CA","type":"tmax_low","timescale":"daily","date":"1909-05-18","value":7.2,"unit":"c","previous_value":7.8,"previous_date":"1881-05-18","margin":0.6,"years_stood":27,"significance":12,"tie":false,"provisional":false,"lat":47.05,"lon":-65.4833},{"id":"ASN00086131-1909-05-18-prcp_high-daily","station_id":"ASN00086131","station_name":"Yan Yean","country":"AU","type":"prcp_high","timescale":"daily","date":"1909-05-18","value":8.9,"unit":"mm","previous_value":6.9,"previous_date":"1904-05-18","margin":2,"years_stood":4,"significance":9,"tie":false,"provisional":false,"lat":-37.5552,"lon":145.1259},{"id":"ASN00065016-1909-05-18-tmax_low-daily","station_id":"ASN00065016","station_name":"Forbes (Camp Street)","country":"AU","type":"tmax_low","timescale":"daily","date":"1909-05-18","value":11.7,"unit":"c","previous_value":12.8,"previous_date":"1900-05-18","margin":1.1,"years_stood":8,"significance":8,"tie":false,"provisional":false,"lat":-33.3892,"lon":148.0081},{"id":"CA008205988-1909-05-18-tmax_low-daily","station_id":"CA008205988","station_name":"Truro","country":"CA","type":"tmax_low","timescale":"daily","date":"1909-05-18","value":9.4,"unit":"c","previous_value":10,"previous_date":"1898-05-18","margin":0.6,"years_stood":10,"significance":7,"tie":false,"provisional":false,"lat":45.35,"lon":-63.3},{"id":"CE000043497-1909-05-18-tmin_high-daily","station_id":"CE000043497","station_name":"Hambantota","country":"LK","type":"tmin_high","timescale":"daily","date":"1909-05-18","value":26.8,"unit":"c","previous_value":26.6,"previous_date":"1906-05-18","margin":0.2,"years_stood":3,"significance":5,"tie":false,"provisional":false,"lat":6.117,"lon":81.133},{"id":"DA000021100-1909-05-18-tmax_low-daily","station_id":"DA000021100","station_name":"Vestervig","country":"DK","type":"tmax_low","timescale":"daily","date":"1909-05-18","value":8,"unit":"c","previous_value":8.2,"previous_date":"1900-05-18","margin":0.2,"years_stood":8,"significance":5,"tie":false,"provisional":false,"lat":56.7667,"lon":8.3167},{"id":"CA007056067-1909-05-18-tmax_low-daily","station_id":"CA007056067","station_name":"Pointe Au Pere","country":"CA","type":"tmax_low","timescale":"daily","date":"1909-05-18","value":5.6,"unit":"c","previous_value":5.6,"previous_date":"1893-05-18","margin":0,"years_stood":15,"significance":1,"tie":true,"provisional":false,"lat":48.5,"lon":-68.4833},{"id":"CA008205698-1909-05-18-tmax_low-daily","station_id":"CA008205698","station_name":"Sydney","country":"CA","type":"tmax_low","timescale":"daily","date":"1909-05-18","value":7.2,"unit":"c","previous_value":7.2,"previous_date":"1906-05-18","margin":0,"years_stood":3,"significance":1,"tie":true,"provisional":false,"lat":46.15,"lon":-60.2}]}