Old Wives' summer

{
  "id": "MLC-T-MET-007680",
  "term": "Old Wives' summer",
  "field": "Meteorology and atmospheric science",
  "definition": "A period of unseasonably warm, dry, and calm weather that occurs in mid-autumn, often after the first frosts of the season. This phenomenon is characterized by clear skies and mild temperatures, providing a brief return to summer-like conditions before the onset of winter. It is analogous to an Indian summer in North America, occurring in late October or early November in Europe.",
  "see_also": [
    "St. Luke's summer",
    "St. Martin's summer"
  ],
  "url": "https://mlchart.com/terminology/meteorology/old-wives-summer/"
}