Frost Forms When - Web frost is most common on clear, cold and sunny mornings — so where does that moisture come from? Web “frost” refers to the layer of ice crystals that form when water vapor on plant matter condenses and freezes. — frost forms when water vapor deposits onto a freezing surface, causing a thin layer of ice to form.
Web frost is most common on clear, cold and sunny mornings — so where does that moisture come from? Web “frost” refers to the layer of ice crystals that form when water vapor on plant matter condenses and freezes. — frost forms when water vapor deposits onto a freezing surface, causing a thin layer of ice to form.