Skykomish, WA 98288 Frost Dates
Skykomish, WA: when does the frost end?
The last spring frost here typically falls around 04/14, about 229 days from today. Fall's first freeze usually shows up around 10/29, roughly 197 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Skykomish 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
With roughly 9 weeks until Skykomish's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Skykomish's last frost
04/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/26 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/04 and only about 1 year in 10 sees frost after that.
Skykomish against the rest of the dataset
At roughly 197 frost-free days, Skykomish places 18,848 of 40,283 ZIP codes in this dataset. Within WA, it ranks 339 of 700.
Learn more
Before leaning on 98288's figures: local microclimates explains what one yard in Skykomish can differ from the 98288 normal, while zone vs. frost date explains why Zone 8a and Skykomish's frost date answer different questions.