Yacolt, WA 98601 Frost Dates
When can you plant in Yacolt, WA?
Around 04/26 is the usual last spring frost, about 241 days away. The first fall frost typically arrives around 10/16, about 174 frost-free days later.
Zone 8b (15 to 20°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Yacolt, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in Yacolt before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Yacolt's last frost
04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/05 and you're betting against frost in roughly 9 years out of 10. 05/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Yacolt compares
Yacolt's growing season runs about 174 days, ranking 27,520 of 40,283 US ZIP codes measured here, longest to shortest. Within WA, it ranks 481 of 700.
Learn more
local microclimates covers what one yard in Yacolt can differ from the 98601 normal. zone vs. frost date covers why Zone 8b and Yacolt's frost date answer different questions.