{"icao":"KMWH","name":"Grant County International Airport","lat":47.2077,"lon":-119.32,"country":"US","tz":"America/Los_Angeles","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":102,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["January","December"],"monthlyHours":[35,17,2,0,0,0,0,0,2,1,18,27],"medianEventHours":2,"season":{"summary":"Fog season runs November through February, peaking in January; fog is mostly a 6 AM\u20139 AM phenomenon; typically thinning out by noon; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","November","December"],"timeOfDay":"6 AM\u20139 AM","typicallyClearsBy":"noon"}},"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 2 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/kmwh/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KMWH","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KMWH.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}