{"city":"Hayden","region":"US-CO","country":"US","slug":"hayden-co","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"KHDN","name":"Yampa Valley Airport","subCat1HoursPerYear":36,"forecast":"verifying"}],"primaryStation":"KHDN","forecast":{"covered":true,"public":false,"cycle":"2026-08-16T00:00:00Z","guidanceSignal":false,"wording":"No fog signal in NWS guidance for the next 48 hours. dense fog (visibility under a mile) is rare here in August."},"climatology":{"subCat1HoursPerYear":36,"fogSeasonPeakMonths":["February","January"],"medianEventHours":1,"season":{"summary":"Fog season runs October through April, peaking in January; fog is mostly a 4 AM\u2013noon phenomenon; typically thinning out by 6 PM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","April","October","November","December"],"timeOfDay":"4 AM\u2013noon","typicallyClearsBy":"6 PM"}},"links":{"page":"https://fogatlas.org/fog/city/hayden-co/","stationPages":["https://fogatlas.org/fog/khdn/"],"verification":"https://fogatlas.org/fog/scorecard/"}}