Aumsville, OR 97325 Frost Dates
97325, near Aumsville, OR: the frost window
Around 04/03 is the usual last spring frost, about 218 days away. Fall's first freeze usually shows up around 11/01, roughly 212 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Aumsville in Zone 8b (15 to 20°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Aumsville's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Aumsville's last frost
04/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/27 and only about 1 year in 10 sees frost after that.
Aumsville against the rest of the dataset
At roughly 212 frost-free days, Aumsville places 14,604 of 40,283 ZIP codes in this dataset. Within OR, it ranks 205 of 463.
Learn more
Two guides worth reading on 97325: the frost range, on how to read the range around Aumsville's dates instead of trusting one, and local microclimates, on what one yard in Aumsville can differ from the 97325 normal.