{"icao":"KATY","name":"Watertown Regional Airport","lat":44.914,"lon":-97.1547,"country":"US","tz":"America/Chicago","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":82,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["January","December"],"monthlyHours":[16,9,11,9,3,1,2,6,4,3,6,13],"medianEventHours":1,"season":{"summary":"Fog season is January, February, March, April, August, September, November, December, peaking in January; fog is mostly a 1 AM\u201310 AM phenomenon; typically thinning out by 11 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","April","August","September","November","December"],"timeOfDay":"1 AM\u201310 AM","typicallyClearsBy":"11 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 4 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/katy/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KATY","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KATY.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}