{"title":"Iceland: highest significance records","description":"The highest significance records in Iceland in the data.","dataAsOf":"2026-10-13T00:00:00Z","lastRevised":"2026-10-14","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/is/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":"IC000004013-2026-08-07-prcp_high-daily","station_id":"IC000004013","station_name":"Stykkisholmur","country":"IS","type":"prcp_high","timescale":"daily","date":"2026-08-07","value":35.4,"unit":"mm","previous_value":14.8,"previous_date":"1986-08-07","margin":20.6,"years_stood":40,"significance":59,"tie":false,"provisional":false,"lat":65.0739,"lon":-22.7333},{"id":"IC000004013-2025-12-24-prcp_high-daily","station_id":"IC000004013","station_name":"Stykkisholmur","country":"IS","type":"prcp_high","timescale":"daily","date":"2025-12-24","value":37.1,"unit":"mm","previous_value":19.4,"previous_date":"2002-12-24","margin":17.7,"years_stood":23,"significance":47,"tie":false,"provisional":false,"lat":65.0739,"lon":-22.7333},{"id":"ICW00016201-2025-12-24-tmin_high-daily","station_id":"ICW00016201","station_name":"Keflavik","country":"IS","type":"tmin_high","timescale":"daily","date":"2025-12-24","value":7,"unit":"c","previous_value":5,"previous_date":"1956-12-24","margin":2,"years_stood":68,"significance":32,"tie":false,"provisional":false,"lat":63.9667,"lon":-22.6},{"id":"IC000004097-2026-07-12-tmax_high-monthly","station_id":"IC000004097","station_name":"Dalatangi","country":"IS","type":"tmax_high","timescale":"monthly","date":"2026-07-12","value":23.9,"unit":"c","previous_value":23.5,"previous_date":"1982-07-27","margin":0.4,"years_stood":43,"significance":31,"tie":false,"provisional":false,"lat":65.2681,"lon":-13.5756},{"id":"ICW00016201-2025-12-25-tmin_high-daily","station_id":"ICW00016201","station_name":"Keflavik","country":"IS","type":"tmin_high","timescale":"daily","date":"2025-12-25","value":7,"unit":"c","previous_value":3.9,"previous_date":"1970-12-25","margin":3.1,"years_stood":55,"significance":30,"tie":false,"provisional":false,"lat":63.9667,"lon":-22.6},{"id":"ICW00016201-2026-06-02-tmin_high-daily","station_id":"ICW00016201","station_name":"Keflavik","country":"IS","type":"tmin_high","timescale":"daily","date":"2026-06-02","value":9,"unit":"c","previous_value":8.9,"previous_date":"1955-06-02","margin":0.1,"years_stood":71,"significance":28,"tie":false,"provisional":false,"lat":63.9667,"lon":-22.6},{"id":"ICW00016201-2026-06-01-tmin_high-daily","station_id":"ICW00016201","station_name":"Keflavik","country":"IS","type":"tmin_high","timescale":"daily","date":"2026-06-01","value":9,"unit":"c","previous_value":8.9,"previous_date":"1954-06-01","margin":0.1,"years_stood":72,"significance":28,"tie":false,"provisional":false,"lat":63.9667,"lon":-22.6},{"id":"IC000004013-2025-12-24-tmin_high-daily","station_id":"IC000004013","station_name":"Stykkisholmur","country":"IS","type":"tmin_high","timescale":"daily","date":"2025-12-24","value":5.6,"unit":"c","previous_value":3.5,"previous_date":"1970-12-24","margin":2.1,"years_stood":55,"significance":28,"tie":false,"provisional":false,"lat":65.0739,"lon":-22.7333},{"id":"IC000004097-2026-07-15-tmax_high-daily","station_id":"IC000004097","station_name":"Dalatangi","country":"IS","type":"tmax_high","timescale":"daily","date":"2026-07-15","value":20.2,"unit":"c","previous_value":16.6,"previous_date":"1996-07-15","margin":3.6,"years_stood":29,"significance":27,"tie":false,"provisional":false,"lat":65.2681,"lon":-13.5756},{"id":"IC000004097-2026-07-23-tmax_high-daily","station_id":"IC000004097","station_name":"Dalatangi","country":"IS","type":"tmax_high","timescale":"daily","date":"2026-07-23","value":20.8,"unit":"c","previous_value":20.4,"previous_date":"1964-07-23","margin":0.4,"years_stood":61,"significance":26,"tie":false,"provisional":false,"lat":65.2681,"lon":-13.5756},{"id":"IC000004097-2026-07-17-tmax_high-daily","station_id":"IC000004097","station_name":"Dalatangi","country":"IS","type":"tmax_high","timescale":"daily","date":"2026-07-17","value":19.3,"unit":"c","previous_value":18.4,"previous_date":"1970-07-17","margin":0.9,"years_stood":56,"significance":26,"tie":false,"provisional":false,"lat":65.2681,"lon":-13.5756},{"id":"ICW00016201-2026-06-03-tmin_high-daily","station_id":"ICW00016201","station_name":"Keflavik","country":"IS","type":"tmin_high","timescale":"daily","date":"2026-06-03","value":9,"unit":"c","previous_value":8.9,"previous_date":"1962-06-03","margin":0.1,"years_stood":64,"significance":26,"tie":false,"provisional":false,"lat":63.9667,"lon":-22.6},{"id":"ICW00016201-2026-04-27-tmin_high-daily","station_id":"ICW00016201","station_name":"Keflavik","country":"IS","type":"tmin_high","timescale":"daily","date":"2026-04-27","value":8,"unit":"c","previous_value":7.8,"previous_date":"1962-04-27","margin":0.2,"years_stood":64,"significance":26,"tie":false,"provisional":false,"lat":63.9667,"lon":-22.6},{"id":"IC000004030-2025-10-29-prcp_high-daily","station_id":"IC000004030","station_name":"Reykjavik","country":"IS","type":"prcp_high","timescale":"daily","date":"2025-10-29","value":26.6,"unit":"mm","previous_value":24.2,"previous_date":"1973-10-29","margin":2.4,"years_stood":52,"significance":26,"tie":false,"provisional":false,"la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