{"icao":"KHVN","name":"Tweed New Haven Airport","lat":41.2629,"lon":-72.8877,"country":"US","tz":"America/New_York","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":65,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["February","May"],"monthlyHours":[8,10,9,4,9,7,1,1,0,3,2,9],"medianEventHours":2,"season":{"summary":"Fog season is January, February, March, April, May, June, October, December, peaking in February; fog is mostly a 1 AM\u20139 AM phenomenon; typically thinning out by 11 AM; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","April","May","June","October","December"],"timeOfDay":"1 AM\u20139 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. dense fog (visibility under a mile) is rare here in September."},"links":{"page":"https://fogatlas.org/fog/khvn/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KHVN","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KHVN.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}