{"icao":"EFRO","name":"Rovaniemi Airport","lat":66.5633,"lon":25.8298,"country":"FI","tz":"Europe/Helsinki","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":519,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["November","October"],"monthlyHours":[56,39,42,19,16,5,8,20,51,89,110,76],"medianEventHours":2,"season":{"summary":"Fog season runs September through March, peaking in November; fog here can hit at any hour of the day; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","September","October","November","December"],"timeOfDay":"any hour of the day","typicallyClearsBy":null}},"forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. September typically brings about 51 hours of dense fog here (10-year average)."},"links":{"page":"https://fogatlas.org/fog/efro/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=EFRO","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/EFRO.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}