Fog day

{
  "id": "MLC-T-MET-005683",
  "term": "Fog day",
  "field": "Meteorology and atmospheric science",
  "definition": "A meteorological observation day on which fog is reported, meaning that horizontal visibility is reduced to less than one kilometer due to suspended water droplets or ice crystals. This metric is used in climatology to track the frequency and distribution of fog events in a particular location. The number of fog days can vary significantly by season and geographic region.",
  "url": "https://mlchart.com/terminology/meteorology/fog-day/"
}