Springdale, WA 99148 Frost Dates
When can you plant in Springdale, WA?
Around 05/22 is the usual last spring frost, about 267 days away. The first fall frost typically arrives around 09/14, about 112 frost-free days later.
The USDA Plant Hardiness Zone Map puts Springdale in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 2 weeks of growing season left in Springdale before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/22 isn't a guarantee
05/22 is the middle of 30 years of NOAA records, not a promise. Plant by 05/02 and you're betting against frost in roughly 9 years out of 10. 06/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Springdale compares
Springdale's growing season runs about 112 days, ranking 39,433 of 40,283 US ZIP codes measured here, longest to shortest. Within WA, it ranks 671 of 700.
Learn more
the frost range covers how to read the range around Springdale's dates instead of trusting one. local microclimates covers what one yard in Springdale can differ from the 99148 normal.