Orofino, ID 83544 Frost Dates
Orofino, ID: when does the frost end?
The last spring frost here typically falls around 04/20, about 235 days from today. Fall's first freeze usually shows up around 10/20, roughly 182 days after the last spring frost.
Orofino 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 8 weeks until Orofino's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Orofino's last frost
04/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.
Orofino against the rest of the dataset
Orofino's growing season runs about 182 days, ranking 24,162 of 40,283 US ZIP codes measured here, longest to shortest. Within ID, it ranks 7 of 320.
Learn more
Before leaning on 83544's figures: the frost range explains how to read the range around Orofino's dates instead of trusting one, while local microclimates explains what one yard in Orofino can differ from the 83544 normal.