{"icao":"KART","name":"Watertown International Airport","lat":43.9919,"lon":-76.0217,"country":"US","tz":"America/New_York","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":63,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["January","December"],"monthlyHours":[14,9,5,1,5,2,2,2,6,2,5,10],"medianEventHours":1,"season":{"summary":"Fog season is January, February, March, May, September, November, December, peaking in January; fog here can hit at any hour of the day; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","May","September","November","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 6 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/kart/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KART","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KART.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}