Vancouver, WA 98660 Frost Dates
Frost dates for Vancouver, WA, ZIP 98660
Typically, the last spring freeze lands around 04/26, roughly 241 days out. The first fall frost typically arrives around 10/18, about 177 frost-free days later.
The USDA Plant Hardiness Zone Map puts Vancouver 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
Zone 8b around Vancouver has about 7 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Vancouver's last frost
04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/07 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 Vancouver compares
Vancouver's growing season runs about 177 days, ranking 25,960 of 40,283 US ZIP codes measured here, longest to shortest. Within WA, it ranks 453 of 700.
Learn more
zone vs. frost date explains why Zone 8b and Vancouver's frost date answer different questions, and the frost range explains how to read the range around Vancouver's dates instead of trusting one.