Cle Elum, WA 98922 Frost Dates
When can you plant in Cle Elum, WA?
The last spring frost here typically falls around 05/13, about 258 days from today. The first fall frost typically arrives around 09/25, about 132 frost-free days later.
Zone 7a (0 to 5°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 Cle Elum, not a forecast for this year.
What to do before the first frost
About 4 weeks of growing season left in Cle Elum before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Cle Elum's last frost
05/13 is the middle of 30 years of NOAA records, not a promise. Plant by 04/29 and you're betting against frost in roughly 9 years out of 10. 06/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Cle Elum compares
Cle Elum's growing season runs about 132 days, ranking 38,200 of 40,283 US ZIP codes measured here, longest to shortest. Within WA, it ranks 637 of 700.
Learn more
local microclimates covers what one yard in Cle Elum can differ from the 98922 normal. zone vs. frost date covers why Zone 7a and Cle Elum's frost date answer different questions.