Spangle, WA 99031 Frost Dates
Frost dates for Spangle, WA, ZIP 99031
The last spring frost here typically falls around 05/30, about 275 days from today. The first fall frost typically arrives around 09/04, about 94 frost-free days later.
Zone 6b (-5 to 0°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Spangle, not a forecast for this year.
What to do before the first frost
Zone 6b around Spangle has about 1 week 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.
How much risk comes with planting early here
05/30 is the middle of 30 years of NOAA records, not a promise. Plant by 05/09 and you're betting against frost in roughly 9 years out of 10. 07/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Spangle compares
At roughly 94 frost-free days, Spangle places 39,851 of 40,283 ZIP codes in this dataset. Within WA, it ranks 693 of 700.
Learn more
the frost range explains how to read the range around Spangle's dates instead of trusting one, and local microclimates explains what one yard in Spangle can differ from the 99031 normal.