{"icao":"CYUY","name":"Rouyn Noranda Airport","lat":48.2061,"lon":-78.8356,"country":"CA","tz":"America/Toronto","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":26,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["October","November"],"monthlyHours":[1,1,2,2,2,1,3,3,3,4,4,2],"medianEventHours":1,"season":{"summary":"Fog season is March, April, May, July, August, September, October, November, December, peaking in October; fog is mostly a 4 AM\u20138 AM phenomenon; typically thinning out by 10 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["March","April","May","July","August","September","October","November","December"],"timeOfDay":"4 AM\u20138 AM","typicallyClearsBy":"10 AM"}},"forecast":{"covered":true,"public":true,"cycle":"2026-09-04T13:00:00Z","peakPct":5,"peakAtLocal":"2026-09-05T06:00:00-04:00","wording":"No, fog is unlikely in the next 36 hours \u2014 the calibrated forecast peaks at just 5%. September typically brings about 3 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/cyuy/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=CYUY","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/CYUY.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}