Weston, OR 97886 Frost Dates
Weston, OR: when does the frost end?
Around 03/25 is the usual last spring frost, about 209 days away. Fall's first freeze usually shows up around 10/29, roughly 218 days after the last spring frost.
Weston sits in USDA Zone 7a (0 to 5°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.
Stretching the season past the first frost
With roughly 9 weeks until Weston's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Weston's last frost
03/25 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/16 and only about 1 year in 10 sees frost after that.
Weston against the rest of the dataset
At roughly 218 frost-free days, Weston places 13,319 of 40,283 ZIP codes in this dataset. Within OR, it ranks 181 of 463.
Learn more
Before leaning on 97886's figures: the frost range explains how to read the range around Weston's dates instead of trusting one, while local microclimates explains what one yard in Weston can differ from the 97886 normal.