{"city":"Chassieu, Lyon","region":"FR-ARA","country":"FR","slug":"chassieu-lyon","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"LFLY","name":"Lyon Bron Airport","subCat1HoursPerYear":90,"forecast":"climatology"}],"primaryStation":"LFLY","forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. dense fog (visibility under a mile) is rare here in August (10-year average)."},"climatology":{"subCat1HoursPerYear":90,"fogSeasonPeakMonths":["December","January"],"medianEventHours":2,"season":{"summary":"Fog season runs November through January, peaking in December; fog is mostly a midnight\u201310 AM phenomenon; typically thinning out by noon; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","November","December"],"timeOfDay":"midnight\u201310 AM","typicallyClearsBy":"noon"}},"links":{"page":"https://fogatlas.org/fog/city/chassieu-lyon/","stationPages":["https://fogatlas.org/fog/lfly/"],"verification":"https://fogatlas.org/fog/scorecard/"}}