Wilkeson, WA 98396 Frost Dates
Wilkeson, WA: when does the frost end?
Around 04/07 is the usual last spring frost, about 222 days away. Fall's first freeze usually shows up around 10/30, roughly 204 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Wilkeson in Zone 8b (15 to 20°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 Wilkeson's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Wilkeson's last frost
04/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/27 and only about 1 year in 10 sees frost after that.
Wilkeson against the rest of the dataset
At roughly 204 frost-free days, Wilkeson places 16,718 of 40,283 ZIP codes in this dataset. Within WA, it ranks 283 of 700.
Learn more
Before leaning on 98396's figures: local microclimates explains what one yard in Wilkeson can differ from the 98396 normal, while zone vs. frost date explains why Zone 8b and Wilkeson's frost date answer different questions.