Covington, WA 98042 Frost Dates
Frost dates for Covington, WA, ZIP 98042
The last spring frost here typically falls around 03/20, about 204 days from today. The first fall frost typically arrives around 11/10, about 233 frost-free days later.
The USDA Plant Hardiness Zone Map puts Covington 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 Covington 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.
How much risk comes with planting early here
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 Covington compares
At roughly 233 frost-free days, Covington places 9,862 of 40,283 ZIP codes in this dataset. Within WA, it ranks 179 of 700.
Learn more
the frost range explains how to read the range around Covington's dates instead of trusting one, and local microclimates explains what one yard in Covington can differ from the 98042 normal.