{"icao":"KCIU","name":"Chippewa County International Airport","lat":46.242,"lon":-84.4621,"country":"US","tz":"America/Detroit","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":119,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["December","March"],"monthlyHours":[12,9,12,8,5,8,9,10,10,12,5,18],"medianEventHours":1,"season":{"summary":"Fog season is year-round, peaking in December; fog is mostly a 1 AM\u20139 AM phenomenon; typically thinning out by 5 PM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","April","May","June","July","August","September","October","November","December"],"timeOfDay":"1 AM\u20139 AM","typicallyClearsBy":"5 PM"}},"forecast":{"covered":true,"public":false,"cycle":"2026-09-04T13:00:00Z","guidanceSignal":false,"wording":"No fog signal in NWS guidance for the next 48 hours. September typically brings about 10 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/kciu/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KCIU","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KCIU.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}