{"icao":"KSTS","name":"Charles M. Schulz Sonoma County Airport","lat":38.509,"lon":-122.813,"country":"US","tz":"America/Los_Angeles","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":204,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["December","January"],"monthlyHours":[40,17,14,7,5,1,5,7,14,23,34,41],"medianEventHours":1,"season":{"summary":"Fog season runs September through March, peaking in December; fog is mostly a midnight\u20138 AM phenomenon; typically thinning out by 9 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","September","October","November","December"],"timeOfDay":"midnight\u20138 AM","typicallyClearsBy":"9 AM"}},"forecast":{"covered":true,"public":false,"cycle":"2026-09-04T13:00:00Z","guidanceSignal":true,"wording":"NWS guidance shows a fog signal here in the next 48 hours. This station's calibrated percentages publish after live verification clears the accuracy bar. September typically brings about 14 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/ksts/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KSTS","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KSTS.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}