Enumclaw, WA 98022 Frost Dates
Enumclaw, WA: when does the frost end?
Typically, the last spring freeze lands around 04/18, roughly 233 days out. Fall's first freeze usually shows up around 10/31, roughly 196 days after the last spring frost.
Enumclaw sits in USDA Zone 8a (10 to 15°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 9 weeks until Enumclaw's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/18 isn't a guarantee
04/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/28 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.
Enumclaw against the rest of the dataset
About 196 days separate Enumclaw's last and first frost, putting it 18,927 of 40,283 ZIP codes nationally. Within WA, it ranks 346 of 700.
Learn more
Before leaning on 98022's figures: local microclimates explains what one yard in Enumclaw can differ from the 98022 normal, while zone vs. frost date explains why Zone 8a and Enumclaw's frost date answer different questions.