McMinnville, OR 97128 Frost Dates
Frost dates for McMinnville, OR, ZIP 97128
The last spring frost here typically falls around 04/05, about 220 days from today. The first fall frost typically arrives around 11/07, about 216 frost-free days later.
McMinnville sits in USDA Zone 8b (15 to 20°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 8b around McMinnville has about 10 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
04/05 is the middle of 30 years of NOAA records, not a promise. Plant by 03/05 and you're betting against frost in roughly 9 years out of 10. 04/27 is the safer bet, historically only a 1-in-10 chance of frost that late.
How McMinnville compares
At roughly 216 frost-free days, McMinnville places 13,725 of 40,283 ZIP codes in this dataset. Within OR, it ranks 182 of 463.
Learn more
the frost range explains how to read the range around McMinnville's dates instead of trusting one, and local microclimates explains what one yard in McMinnville can differ from the 97128 normal.