Ferndale, WA 98240 Frost Dates
When can you plant in Ferndale, WA?
Typically, the last spring freeze lands around 03/31, roughly 215 days out. The first fall frost typically arrives around 11/04, about 219 frost-free days later.
Ferndale 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 10 weeks of growing season left in Ferndale 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
03/31 is the middle of 30 years of NOAA records, not a promise. Plant by 03/08 and you're betting against frost in roughly 9 years out of 10. 04/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Ferndale compares
Ferndale's growing season runs about 219 days, ranking 12,977 of 40,283 US ZIP codes measured here, longest to shortest. Within WA, it ranks 240 of 700.
Learn more
zone vs. frost date covers why Zone 8b and Ferndale's frost date answer different questions. the frost range covers how to read the range around Ferndale's dates instead of trusting one.