{"title":"Portugal: highest significance records","description":"The highest significance records in Portugal in the data.","dataAsOf":"2026-10-14T00:00:00Z","lastRevised":"2026-10-15","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/countries/pt/records/","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":"PO000008535-2026-09-26-prcp_high-daily","station_id":"PO000008535","station_name":"Lisboa Geofisica","country":"PT","type":"prcp_high","timescale":"daily","date":"2026-09-26","value":71.2,"unit":"mm","previous_value":22,"previous_date":"1949-09-26","margin":49.2,"years_stood":76,"significance":71,"tie":false,"provisional":true,"lat":38.7167,"lon":-9.15},{"id":"PO000008535-2026-07-09-prcp_high-monthly","station_id":"PO000008535","station_name":"Lisboa Geofisica","country":"PT","type":"prcp_high","timescale":"monthly","date":"2026-07-09","value":56.5,"unit":"mm","previous_value":34,"previous_date":"1988-07-03","margin":22.5,"years_stood":38,"significance":69,"tie":false,"provisional":false,"lat":38.7167,"lon":-9.15},{"id":"PO000008535-2026-09-25-prcp_high-all-time","station_id":"PO000008535","station_name":"Lisboa Geofisica","country":"PT","type":"prcp_high","timescale":"all-time","date":"2026-09-25","value":132.7,"unit":"mm","previous_value":102.4,"previous_date":"2008-02-18","margin":30.3,"years_stood":18,"significance":68,"tie":false,"provisional":true,"lat":38.7167,"lon":-9.15},{"id":"PO000008535-2026-07-12-prcp_high-monthly","station_id":"PO000008535","station_name":"Lisboa Geofisica","country":"PT","type":"prcp_high","timescale":"monthly","date":"2026-07-12","value":99.8,"unit":"mm","previous_value":56.5,"previous_date":"2026-07-09","margin":43.3,"years_stood":0,"significance":58,"tie":false,"provisional":false,"lat":38.7167,"lon":-9.15},{"id":"PO000008546-2026-07-03-tmin_high-daily","station_id":"PO000008546","station_name":"Porto","country":"PT","type":"tmin_high","timescale":"daily","date":"2026-07-03","value":24.7,"unit":"c","previous_value":19.9,"previous_date":"1949-07-03","margin":4.8,"years_stood":76,"significance":52,"tie":false,"provisional":false,"lat":41.1331,"lon":-8.6},{"id":"PO000008546-2026-07-03-tmax_high-daily","station_id":"PO000008546","station_name":"Porto","country":"PT","type":"tmax_high","timescale":"daily","date":"2026-07-03","value":39.8,"unit":"c","previous_value":32.9,"previous_date":"1949-07-03","margin":6.9,"years_stood":76,"significance":48,"tie":false,"provisional":false,"lat":41.1331,"lon":-8.6},{"id":"PO000008535-2026-07-04-tmin_high-daily","station_id":"PO000008535","station_name":"Lisboa Geofisica","country":"PT","type":"tmin_high","timescale":"daily","date":"2026-07-04","value":24.6,"unit":"c","previous_value":23,"previous_date":"1918-07-04","margin":1.6,"years_stood":108,"significance":47,"tie":false,"provisional":false,"lat":38.7167,"lon":-9.15},{"id":"PO000008535-2026-09-24-tmin_high-daily","station_id":"PO000008535","station_name":"Lisboa Geofisica","country":"PT","type":"tmin_high","timescale":"daily","date":"2026-09-24","value":21.3,"unit":"c","previous_value":21.2,"previous_date":"1926-09-24","margin":0.1,"years_stood":100,"significance":40,"tie":false,"provisional":true,"lat":38.7167,"lon":-9.15},{"id":"PO000008535-2026-09-21-tmax_high-daily","station_id":"PO000008535","station_name":"Lisboa Geofisica","country":"PT","type":"tmax_high","timescale":"daily","date":"2026-09-21","value":32.7,"unit":"c","previous_value":32.4,"previous_date":"1926-09-21","margin":0.3,"years_stood":100,"significance":40,"tie":false,"provisional":true,"lat":38.7167,"lon":-9.15},{"id":"PO000008546-2026-07-04-tmin_high-daily","station_id":"PO000008546","station_name":"Porto","country":"PT","type":"tmin_high","timescale":"daily","date":"2026-07-04","value":22.7,"unit":"c","previous_value":21,"previous_date":"1949-07-04","margin":1.7,"years_stood":76,"significance":38,"tie":false,"provisional":false,"lat":41.1331,"lon":-8.6},{"id":"PO000008546-2026-07-02-tmax_high-daily","station_id":"PO000008546","station_name":"Porto","country":"PT","type":"tmax_high","timescale":"daily","date":"2026-07-02","value":38.2,"unit":"c","previous_value":35.3,"previous_date":"1949-07-02","margin":2.9,"years_stood":76,"significance":38,"tie":false,"provisional":false,"lat":41.1331,"lon":-8.6},{"id":"PO000008535-2026-10-02-prcp_high-monthly","station_id":"PO000008535","station_name":"Lisboa Geofisica","country":"PT","type":"prcp_high","timescale":"monthly","date":"2026-10-02","value":106.3,"unit":"mm","previous_value":92.5,"previous_date":"1997-10-18","margin":13.8,"years_stood":28,"significance":37,"tie":false,"provisional":true,"lat":38.7167,"lon":-9.15},{"id":"PO000008546-2026-07-02-tmin_high-daily","station_id":"PO000008546","station_name":"Porto","country":"PT","type":"tmin_high","timescale":"daily","date":"2026-07-02","value":23,"unit":"c","previous_value":21.8,"previous_date":"1949-07-02","margin":1.2,"years_stood":76,"significance":36,"tie":false,"provisional":false,"lat":41.1331,"lon":-8.6},{"id":"PO000008535-2026-07-02-tmin_high-daily","station_id":"PO000008535","station_name":"Lisboa 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