First Day Of Frost 2024 Washington State. Scroll down to find your town (located by regions around the state) to find your estimated (usually spot on) last spring frost of the season. Discover the latest weather predictions for september and october in washington state from the trusted old farmer's almanac.

A frost date is the average date of the last light freeze in spring or the first light freeze in fall. An interactive map of average first frost dates in washington and a list of locations in washington with average first frost dates