Ocean Shores, WA 98569 Frost Dates
Frost dates for Ocean Shores, WA, ZIP 98569
The last spring frost here typically falls around 03/30, about 214 days from today. The first fall frost typically arrives around 11/14, about 228 frost-free days later.
Zone 9a (20 to 25°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 Ocean Shores, not a forecast for this year.
What to do before the first frost
Zone 9a around Ocean Shores 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.
Why 03/30 isn't a guarantee
03/30 is the middle of 30 years of NOAA records, not a promise. Plant by 02/28 and you're betting against frost in roughly 9 years out of 10. 04/25 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Ocean Shores compares
Ocean Shores's growing season runs about 228 days, ranking 10,790 of 40,283 US ZIP codes measured here, longest to shortest. Within WA, it ranks 183 of 700.
Learn more
local microclimates explains what one yard in Ocean Shores can differ from the 98569 normal, and zone vs. frost date explains why Zone 9a and Ocean Shores's frost date answer different questions.