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The historically mid-May frost period arrives early in 2025, raising concerns for gardeners and farmers as climate change disrupts seasonal norms.

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Die traditionellen Eisheiligen werden in diesem Jahr früher als sonst erwartet (Symbolbild).

Overview

  • The Eisheiligen, traditionally observed from May 11th to 15th, have shifted earlier in 2025, with frost already reported in April.
  • This early frost has heightened risks for frost-sensitive plants, such as tomatoes, during a critical agricultural period.
  • The German Weather Service (DWD) forecasts a reduced likelihood of frost in mid-May, especially in southern Germany, with probabilities now well below 50%.
  • The Eisheiligen are rooted in folklore and Christian tradition, with names honoring saints Mamertus, Pancratius, Servatius, Bonifatius, and 'Kalte Sophie'.
  • Climate change has disrupted traditional frost patterns, leading to variations like warm spells ('Schweißheiligen') in recent years.