Auburn, WA 98002 Frost Dates
Frost dates for Auburn, WA, ZIP 98002
Typically, the last spring freeze lands around 03/20, roughly 204 days out. The first fall frost typically arrives around 11/10, about 233 frost-free days later.
The USDA Plant Hardiness Zone Map puts Auburn 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 Auburn has about 11 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 Auburn's last frost
03/20 is the middle of 30 years of NOAA records, not a promise. Plant by 02/27 and you're betting against frost in roughly 9 years out of 10. 04/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Auburn compares
At roughly 233 frost-free days, Auburn places 9,852 of 40,283 ZIP codes in this dataset. Within WA, it ranks 177 of 700.
Learn more
the frost range explains how to read the range around Auburn's dates instead of trusting one, and local microclimates explains what one yard in Auburn can differ from the 98002 normal.