{"icao":"KSDF","name":"Louisville Muhammad Ali International Airport","lat":38.1706,"lon":-85.7351,"country":"US","tz":"America/Kentucky/Louisville","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":11,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["February","March"],"monthlyHours":[1,4,1,0,1,0,0,0,1,0,1,1],"medianEventHours":1,"season":{"summary":"Fog season is February, peaking in February; fog is mostly a 1 AM\u20138 AM phenomenon; typically thinning out by 9 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["February"],"timeOfDay":"1 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 1 hour of dense fog here."},"links":{"page":"https://fogatlas.org/fog/ksdf/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KSDF","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KSDF.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}