Frost day

{
  "id": "MLC-T-MET-005823",
  "term": "Frost day",
  "field": "Meteorology and atmospheric science",
  "definition": "A day on which the minimum air temperature recorded at a standard meteorological height (typically 1.5 to 2 meters above ground) falls to 0 degrees Celsius (32 degrees Fahrenheit) or below. This metric is used to characterize the severity and duration of cold periods in a given location. The number of frost days varies significantly with latitude and altitude.",
  "url": "https://mlchart.com/terminology/meteorology/frost-day/"
}