FrostDateCheck

Dufur, OR 97021 Frost Dates

When can you plant in Dufur, OR?

Zone 7b

The last spring frost here typically falls around 05/12, about 257 days from today. The first fall frost typically arrives around 10/07, about 148 frost-free days later.

Dufur sits in USDA Zone 7b (5 to 10°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

About 6 weeks of growing season left in Dufur before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

How much risk comes with planting early here

05/12 is the middle of 30 years of NOAA records, not a promise. Plant by 04/25 and you're betting against frost in roughly 9 years out of 10. 05/31 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Dufur compares

At roughly 148 frost-free days, Dufur places 35,772 of 40,283 ZIP codes in this dataset. Within OR, it ranks 347 of 463.

Learn more

the frost range covers how to read the range around Dufur's dates instead of trusting one. local microclimates covers what one yard in Dufur can differ from the 97021 normal.