Shelton, WA 98592 Frost Dates
Frost dates for Shelton, WA, ZIP 98592
Typically, the last spring freeze lands around 03/24, roughly 208 days out. The first fall frost typically arrives around 11/15, about 235 frost-free days later.
The USDA Plant Hardiness Zone Map puts Shelton in Zone 8b (15 to 20°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 8b around Shelton has about 11 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 03/24 isn't a guarantee
03/24 is the middle of 30 years of NOAA records, not a promise. Plant by 02/26 and you're betting against frost in roughly 9 years out of 10. 04/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Shelton compares
At roughly 235 frost-free days, Shelton places 9,579 of 40,283 ZIP codes in this dataset. Within WA, it ranks 168 of 700.
Learn more
local microclimates explains what one yard in Shelton can differ from the 98592 normal, and zone vs. frost date explains why Zone 8b and Shelton's frost date answer different questions.