Millwood, WA 99212 Frost Dates
When can you plant in Millwood, WA?
Typically, the last spring freeze lands around 04/26, roughly 241 days out. The first fall frost typically arrives around 10/15, about 170 frost-free days later.
Millwood sits in USDA Zone 7a (0 to 5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 7 weeks of growing season left in Millwood before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/26 isn't a guarantee
04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/10 and you're betting against frost in roughly 9 years out of 10. 05/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Millwood compares
At roughly 170 frost-free days, Millwood places 29,061 of 40,283 ZIP codes in this dataset. Within WA, it ranks 501 of 700.
Learn more
the frost range covers how to read the range around Millwood's dates instead of trusting one. local microclimates covers what one yard in Millwood can differ from the 99212 normal.