{"icao":"EFJY","name":"Jyv\u00e4skyl\u00e4 Airport","lat":62.3995,"lon":25.6783,"country":"FI","tz":"Europe/Helsinki","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":140,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["September","October"],"monthlyHours":[8,8,10,6,5,5,4,12,34,22,16,15],"medianEventHours":1,"season":{"summary":"Fog season is March, August, September, October, November, December, peaking in September; fog is mostly a midnight\u20139 AM phenomenon; typically thinning out by 11 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["March","August","September","October","November","December"],"timeOfDay":"midnight\u20139 AM","typicallyClearsBy":"11 AM"}},"forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. September typically brings about 34 hours of dense fog here (10-year average)."},"links":{"page":"https://fogatlas.org/fog/efjy/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=EFJY","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/EFJY.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}