Grants Pass, OR 97526 Frost Dates
Grants Pass, OR: when does the frost end?
The last spring frost here typically falls around 05/16, about 261 days from today. Fall's first freeze usually shows up around 10/30, roughly 164 days after the last spring frost.
Zone 8b (15 to 20°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 Grants Pass, not a forecast for this year.
Stretching the season past the first frost
With roughly 9 weeks until Grants Pass's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Grants Pass's last frost
05/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/07 and only about 1 year in 10 sees frost after that.
Grants Pass against the rest of the dataset
Grants Pass's growing season runs about 164 days, ranking 30,846 of 40,283 US ZIP codes measured here, longest to shortest. Within OR, it ranks 325 of 463.
Learn more
Before leaning on 97526's figures: local microclimates explains what one yard in Grants Pass can differ from the 97526 normal, while zone vs. frost date explains why Zone 8b and Grants Pass's frost date answer different questions.