{"icao":"KJAN","name":"Jackson-Medgar Wiley Evers International Airport","lat":32.3112,"lon":-90.0759,"country":"US","tz":"America/Chicago","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":27,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["December","January"],"monthlyHours":[5,2,2,2,1,1,1,1,0,1,4,7],"medianEventHours":1,"season":{"summary":"Fog season runs November through April, peaking in December; fog is mostly a midnight\u20137 AM phenomenon; typically thinning out by 9 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","April","November","December"],"timeOfDay":"midnight\u20137 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. dense fog (visibility under a mile) is rare here in September."},"links":{"page":"https://fogatlas.org/fog/kjan/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KJAN","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KJAN.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}