Iron nights

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As Iron nights in are (used mostly in the plural) Norway and Sweden , the first frosty nights from about mid-August called, which can destroy a promising harvest and mean the end of the summer.

For example, Knut Hamsun uses the term in his novel Pan at the end of chapter 25.


  • General economic or agricultural calendar for the year 1770. Johann Benedict Mezler, Stuttgart.
  • Gyldendal's concise dictionary of Norwegian. Langenscheidt, Berlin / Munich / Zurich 1965, under jernnetter .
  • Illustrerad Svensk Ordbok, by nature and culture. Stockholm 1970, under järnnatt .