{"icao":"KCON","name":"Concord Municipal Airport","lat":43.2027,"lon":-71.5023,"country":"US","tz":"America/New_York","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":104,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["October","September"],"monthlyHours":[7,7,8,4,5,5,4,7,15,22,7,14],"medianEventHours":2,"season":{"summary":"Fog season runs August through March, peaking in October; fog is mostly a 3 AM\u20138 AM phenomenon; typically thinning out by 9 AM; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","August","September","October","November","December"],"timeOfDay":"3 AM\u20138 AM","typicallyClearsBy":"9 AM"}},"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 15 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/kcon/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KCON","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KCON.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}