{"icao":"LFRI","name":"La Roche-sur-Yon Les Ajoncs Airport","lat":46.7019,"lon":-1.3786,"country":"FR","tz":"Europe/Paris","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":153,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["December","November"],"monthlyHours":[22,16,7,7,5,3,4,5,10,23,26,29],"medianEventHours":2,"season":{"summary":"Fog season runs September through February, peaking in December; fog is mostly a 1 AM\u201310 AM phenomenon; typically thinning out by noon; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","September","October","November","December"],"timeOfDay":"1 AM\u201310 AM","typicallyClearsBy":"noon"}},"forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. September typically brings about 10 hours of dense fog here (10-year average)."},"links":{"page":"https://fogatlas.org/fog/lfri/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=LFRI","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/LFRI.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}