Milton, WA 98354 Frost Dates
When can you plant in Milton, WA?
The last spring frost here typically falls around 03/08, about 192 days from today. The first fall frost typically arrives around 11/14, about 250 frost-free days later.
Milton sits in USDA Zone 8b (15 to 20°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 11 weeks of growing season left in Milton 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
03/08 is the middle of 30 years of NOAA records, not a promise. Plant by 02/15 and you're betting against frost in roughly 9 years out of 10. 03/31 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Milton compares
About 250 days separate Milton's last and first frost, putting it 7,518 of 40,283 ZIP codes nationally. Within WA, it ranks 122 of 700.
Learn more
the frost range covers how to read the range around Milton's dates instead of trusting one. local microclimates covers what one yard in Milton can differ from the 98354 normal.