{"icao":"KCMH","name":"John Glenn Columbus International Airport","lat":39.998,"lon":-82.8919,"country":"US","tz":"America/New_York","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":24,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["February","November"],"monthlyHours":[4,5,1,0,1,0,1,1,0,3,4,3],"medianEventHours":2,"season":{"summary":"Fog season runs October through February, peaking in February; fog is mostly a 2 AM\u201310 AM phenomenon; typically thinning out by noon; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","October","November","December"],"timeOfDay":"2 AM\u201310 AM","typicallyClearsBy":"noon"}},"forecast":{"covered":true,"public":true,"cycle":"2026-09-04T13:00:00Z","peakPct":1,"peakAtLocal":"2026-09-05T07:00:00-04:00","wording":"No, fog is unlikely in the next 36 hours \u2014 the calibrated forecast peaks at just 1%. dense fog (visibility under a mile) is rare here in September."},"links":{"page":"https://fogatlas.org/fog/kcmh/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KCMH","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KCMH.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}