Lake Stevens, WA 98258 Frost Dates
When can you plant in Lake Stevens, WA?
Around 03/24 is the usual last spring frost, about 208 days away. The first fall frost typically arrives around 11/02, about 223 frost-free days later.
The USDA Plant Hardiness Zone Map puts Lake Stevens in Zone 8b (15 to 20°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 9 weeks of growing season left in Lake Stevens before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Lake Stevens's last frost
03/24 is the middle of 30 years of NOAA records, not a promise. Plant by 03/04 and you're betting against frost in roughly 9 years out of 10. 04/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Lake Stevens compares
At roughly 223 frost-free days, Lake Stevens places 12,014 of 40,283 ZIP codes in this dataset. Within WA, it ranks 229 of 700.
Learn more
zone vs. frost date covers why Zone 8b and Lake Stevens's frost date answer different questions. the frost range covers how to read the range around Lake Stevens's dates instead of trusting one.