Winston, OR 97416 Frost Dates
Frost dates for Winston, OR, ZIP 97416
The last spring frost here typically falls around 03/23, about 207 days from today. The first fall frost typically arrives around 11/18, about 237 frost-free days later.
The USDA Plant Hardiness Zone Map puts Winston in Zone 9a (20 to 25°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 9a around Winston has about 12 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 Winston's last frost
03/23 is the middle of 30 years of NOAA records, not a promise. Plant by 02/25 and you're betting against frost in roughly 9 years out of 10. 04/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Winston compares
At roughly 237 frost-free days, Winston places 9,100 of 40,283 ZIP codes in this dataset. Within OR, it ranks 127 of 463.
Learn more
the frost range explains how to read the range around Winston's dates instead of trusting one, and local microclimates explains what one yard in Winston can differ from the 97416 normal.