Emmett, ID 83636 Frost Dates
Emmett, ID: when does the frost end?
Around 04/30 is the usual last spring frost, about 245 days away. Fall's first freeze usually shows up around 10/17, roughly 168 days after the last spring frost.
Emmett 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 7 weeks until Emmett's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/30 isn't a guarantee
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 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.
Emmett against the rest of the dataset
Emmett's growing season runs about 168 days, ranking 29,697 of 40,283 US ZIP codes measured here, longest to shortest. Within ID, it ranks 65 of 320.
Learn more
Before leaning on 83636's figures: zone vs. frost date explains why Zone 7a and Emmett's frost date answer different questions, while the frost range explains how to read the range around Emmett's dates instead of trusting one.