Idanha, OR 97342 Frost Dates
Idanha, OR: when does the frost end?
The last spring frost here typically falls around 03/09, about 193 days from today. Fall's first freeze usually shows up around 12/03, roughly 270 days after the last spring frost.
Zone 7b (5 to 10°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 Idanha, not a forecast for this year.
Stretching the season past the first frost
With roughly 14 weeks until Idanha's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Idanha's last frost
03/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/08 and only about 1 year in 10 sees frost after that.
Idanha against the rest of the dataset
At roughly 270 frost-free days, Idanha places 5,634 of 40,283 ZIP codes in this dataset. Within OR, it ranks 40 of 463.
Learn more
Before leaning on 97342's figures: local microclimates explains what one yard in Idanha can differ from the 97342 normal, while zone vs. frost date explains why Zone 7b and Idanha's frost date answer different questions.