Garfield, WA 99130 Frost Dates
Frost dates for Garfield, WA, ZIP 99130
The last spring frost here typically falls around 05/15, about 260 days from today. The first fall frost typically arrives around 09/21, about 126 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 Garfield, not a forecast for this year.
What to do before the first frost
Zone 6b around Garfield has about 3 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.
Why 05/15 isn't a guarantee
05/15 is the middle of 30 years of NOAA records, not a promise. Plant by 04/30 and you're betting against frost in roughly 9 years out of 10. 06/02 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Garfield compares
About 126 days separate Garfield's last and first frost, putting it 38,710 of 40,283 ZIP codes nationally. Within WA, it ranks 646 of 700.
Learn more
local microclimates explains what one yard in Garfield can differ from the 99130 normal, and zone vs. frost date explains why Zone 6b and Garfield's frost date answer different questions.