Pe Ell, WA 98539 Frost Dates
98539, near Pe Ell, WA: the frost window
Typically, the last spring freeze lands around 04/22, roughly 237 days out. Fall's first freeze usually shows up around 10/27, roughly 188 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Pe Ell in Zone 8a (10 to 15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Pe Ell's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Pe Ell's last frost
04/22 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/10 and only about 1 year in 10 sees frost after that.
Pe Ell against the rest of the dataset
Pe Ell's growing season runs about 188 days, ranking 22,140 of 40,283 US ZIP codes measured here, longest to shortest. Within WA, it ranks 416 of 700.
Learn more
Two guides worth reading on 98539: zone vs. frost date, on why Zone 8a and Pe Ell's frost date answer different questions, and the frost range, on how to read the range around Pe Ell's dates instead of trusting one.