Forks, WA 98381 Frost Dates
Frost dates for Forks, WA, ZIP 98381
Around 04/26 is the usual last spring frost, about 241 days away. The first fall frost typically arrives around 10/25, about 182 frost-free days later.
The USDA Plant Hardiness Zone Map puts Forks in Zone 9a (20 to 25°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 9a around Forks has about 8 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/05 and you're betting against frost in roughly 9 years out of 10. 05/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Forks compares
About 182 days separate Forks's last and first frost, putting it 24,159 of 40,283 ZIP codes nationally. Within WA, it ranks 430 of 700.
Learn more
zone vs. frost date explains why Zone 9a and Forks's frost date answer different questions, and the frost range explains how to read the range around Forks's dates instead of trusting one.