{"icao":"KMDT","name":"Harrisburg International Airport","lat":40.1928,"lon":-76.7623,"country":"US","tz":"America/New_York","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":59,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["December","January"],"monthlyHours":[11,10,8,1,3,1,0,1,2,3,3,15],"medianEventHours":2,"season":{"summary":"Fog season runs December through March, peaking in December; fog here can hit at any hour of the day; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","December"],"timeOfDay":"any hour of the day","typicallyClearsBy":null}},"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 2 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/kmdt/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KMDT","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KMDT.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}