Selah, WA 98901 Frost Dates
When can you plant in Selah, WA?
The last spring frost here typically falls around 05/05, about 250 days from today. The first fall frost typically arrives around 10/04, about 149 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 Selah, not a forecast for this year.
What to do before the first frost
About 5 weeks of growing season left in Selah before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/05 is the middle of 30 years of NOAA records, not a promise. Plant by 04/24 and you're betting against frost in roughly 9 years out of 10. 05/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Selah compares
About 149 days separate Selah's last and first frost, putting it 35,510 of 40,283 ZIP codes nationally. Within WA, it ranks 603 of 700.
Learn more
local microclimates covers what one yard in Selah can differ from the 98901 normal. zone vs. frost date covers why Zone 7a and Selah's frost date answer different questions.