Brewster, WA 98812 Frost Dates
Frost dates for Brewster, WA, ZIP 98812
The last spring frost here typically falls around 04/26, about 241 days from today. The first fall frost typically arrives around 10/11, about 167 frost-free days later.
The USDA Plant Hardiness Zone Map puts Brewster in Zone 7a (0 to 5°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 7a around Brewster has about 6 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.
Why 04/26 isn't a guarantee
04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/09 and you're betting against frost in roughly 9 years out of 10. 05/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Brewster compares
At roughly 167 frost-free days, Brewster places 30,023 of 40,283 ZIP codes in this dataset. Within WA, it ranks 548 of 700.
Learn more
local microclimates explains what one yard in Brewster can differ from the 98812 normal, and zone vs. frost date explains why Zone 7a and Brewster's frost date answer different questions.