AgWeatherNet Frost Risk
The Frost Risk Page is updated daily in the morning. The AgWeatherNet team continuously monitors the weather and checks the weather forecasts and will issue e-mail alerts and post a message on the AWN Warnings page in the event of extreme or unusual weather conditions. For additional information regarding the expected weather conditions, please see the weekly Weather Outlooks in the AWN Outlooks link.

Please note that the date refers to the morning time period, and preparations for frost protection should be taken on the previous day. While the daily low temperature generally occurs during the morning, it is possible in rare instances that frost protection could be required before midnight for the morning in question.

Frost Alert Level

March 23
March 24
March 25
March 26
March 27
Yakima ValleyHighModerateModerateHighModerate
Columbia BasinModerateModerateModerateModerateModerate
Tri-Cities/Walla WallaModerateLowModerateModerateLow
Wenatchee areaModerateModerateModerateModerateModerate
Omak areaHighModerateModerateHighModerate
Eastern WashingtonModerateLowModerateModerateModerate
Western WashingtonModerateLowModerateModerateLow

The Frost Alert Levels are provided as a general guidance only. For more specific forecasts and predictions, please check the National Weather Service or private providers such as Clearwest.

Washington State University