{"icao":"EHRD","name":"Rotterdam The Hague Airport","lat":51.9569,"lon":4.4372,"country":"NL","tz":"Europe/Amsterdam","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":140,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["December","January"],"monthlyHours":[27,9,11,4,8,4,3,2,9,14,16,36],"medianEventHours":1,"season":{"summary":"Fog season runs September through March, peaking in December; fog is mostly a midnight\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","September","October","November","December"],"timeOfDay":"midnight\u20138 AM","typicallyClearsBy":"11 AM"}},"forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. September typically brings about 9 hours of dense fog here (10-year average)."},"links":{"page":"https://fogatlas.org/fog/ehrd/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=EHRD","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/EHRD.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}