{"icao":"KOTM","name":"Ottumwa Regional Airport","lat":41.1064,"lon":-92.4498,"country":"US","tz":"America/Chicago","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":60,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["January","December"],"monthlyHours":[13,5,5,3,4,2,3,5,5,1,5,9],"medianEventHours":1,"season":{"summary":"Fog season is January, February, March, May, August, September, November, December, peaking in January; fog is mostly a 3 AM\u20138 AM phenomenon; typically thinning out by 11 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","May","August","September","November","December"],"timeOfDay":"3 AM\u20138 AM","typicallyClearsBy":"11 AM"}},"forecast":{"covered":true,"public":true,"cycle":"2026-09-04T13:00:00Z","peakPct":3,"peakAtLocal":"2026-09-05T06:00:00-05:00","wording":"No, fog is unlikely in the next 36 hours \u2014 the calibrated forecast peaks at just 3%. September typically brings about 5 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/kotm/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KOTM","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KOTM.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}