by Skip Via
skip@westvalleynaturalists.org
Editor’s note: More details on what constitutes hoar frost, rime frost, and rime ice may be found in this article on our web site: Hoar Frost or Rime Ice, or Something else?
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On December 30 and 31, 2025, the conditions in the West Valley were perfect for creating rime frost: low, dense fog, cold temperatures, and steady winds.
