Entiat, WA 98822 Frost Dates
Frost dates for Entiat, WA, ZIP 98822
The last spring frost here typically falls around 05/22, about 267 days from today. The first fall frost typically arrives around 09/22, about 121 frost-free days later.
The USDA Plant Hardiness Zone Map puts Entiat 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 Entiat has about 4 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 05/22 isn't a guarantee
05/22 is the middle of 30 years of NOAA records, not a promise. Plant by 05/02 and you're betting against frost in roughly 9 years out of 10. 06/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Entiat compares
At roughly 121 frost-free days, Entiat places 39,022 of 40,283 ZIP codes in this dataset. Within WA, it ranks 654 of 700.
Learn more
local microclimates explains what one yard in Entiat can differ from the 98822 normal, and zone vs. frost date explains why Zone 7a and Entiat's frost date answer different questions.