Scotts Mills, OR 97309 Frost Dates
Scotts Mills, OR: when does the frost end?
The last spring frost here typically falls around 04/27, about 242 days from today. Fall's first freeze usually shows up around 11/04, roughly 190 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 Scotts Mills, not a forecast for this year.
Stretching the season past the first frost
With roughly 10 weeks until Scotts Mills's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Scotts Mills's last frost
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/17 and only about 1 year in 10 sees frost after that.
Scotts Mills against the rest of the dataset
Scotts Mills's growing season runs about 190 days, ranking 21,289 of 40,283 US ZIP codes measured here, longest to shortest. Within OR, it ranks 282 of 463.
Learn more
Before leaning on 97309's figures: local microclimates explains what one yard in Scotts Mills can differ from the 97309 normal, while zone vs. frost date explains why Zone 8b and Scotts Mills's frost date answer different questions.