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Frost Protection

FROST damage can occur in foothill vineyards in Spring and in Fall, and should be a consideration when choosing a vineyard location and appropriate varieties.

Rick Snyder, UC Biometeorology Specialist, has training units, available in English and Spanish on the Department of Land, Air and Water Resources website.


  • Active Frost Protection: Water
  • Active Frost Protection: Wind Machines
  • Passive Frost Protection
  • Methods of Measuring Temperature

Rick Snyder's handout: Grapevine Frost Protection presentation.

National Weather Service Forecast Office-Sacramento

Using Wind Machines in Vineyards