{"city":"Kaluga","region":"RU-KLU","country":"RU","slug":"kaluga","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"UUBC","name":"Grabtsevo Airport","subCat1HoursPerYear":140,"forecast":"climatology"}],"primaryStation":"UUBC","forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. August typically brings about 19 hours of dense fog here (10-year average)."},"climatology":{"subCat1HoursPerYear":140,"fogSeasonPeakMonths":["November","August"],"medianEventHours":2,"season":{"summary":"Fog season runs May through March, peaking in November; fog is mostly a midnight\u20137 AM phenomenon; typically thinning out by 10 AM; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","May","June","July","August","September","October","November","December"],"timeOfDay":"midnight\u20137 AM","typicallyClearsBy":"10 AM"}},"links":{"page":"https://fogatlas.org/fog/city/kaluga/","stationPages":["https://fogatlas.org/fog/uubc/"],"verification":"https://fogatlas.org/fog/scorecard/"}}