{"icao":"KDAY","name":"James M. Cox Dayton International Airport","lat":39.9024,"lon":-84.2194,"country":"US","tz":"America/New_York","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":57,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["February","January"],"monthlyHours":[10,11,7,2,2,1,1,3,3,4,3,10],"medianEventHours":2,"season":{"summary":"Fog season runs August through March, peaking in February; fog is mostly a 3 AM\u201310 AM phenomenon; typically thinning out by noon; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","August","September","October","November","December"],"timeOfDay":"3 AM\u201310 AM","typicallyClearsBy":"noon"}},"forecast":{"covered":true,"public":true,"cycle":"2026-09-04T13:00:00Z","peakPct":2,"peakAtLocal":"2026-09-05T06:00:00-04:00","wording":"No, fog is unlikely in the next 36 hours \u2014 the calibrated forecast peaks at just 2%. September typically brings about 3 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/kday/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KDAY","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KDAY.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}