FrostDateCheck

Grants Pass, OR 97532 Frost Dates

When can you plant in Grants Pass, OR?

Zone 8b

The last spring frost here typically falls around 05/16, about 261 days from today. The first fall frost typically arrives around 10/30, about 164 frost-free days later.

Grants Pass 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

About 9 weeks of growing season left in Grants Pass before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Grants Pass's last frost

05/16 is the middle of 30 years of NOAA records, not a promise. Plant by 04/23 and you're betting against frost in roughly 9 years out of 10. 06/07 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Grants Pass compares

Grants Pass's growing season runs about 164 days, ranking 30,849 of 40,283 US ZIP codes measured here, longest to shortest. Within OR, it ranks 328 of 463.

Learn more

the frost range covers how to read the range around Grants Pass's dates instead of trusting one. local microclimates covers what one yard in Grants Pass can differ from the 97532 normal.