Kuna, ID 83680 Frost Dates
83680, near Kuna, ID: the frost window
Typically, the last spring freeze lands around 04/24, roughly 239 days out. Fall's first freeze usually shows up around 10/21, roughly 179 days after the last spring frost.
Kuna 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
Kuna's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/09 and only about 1 year in 10 sees frost after that.
Kuna against the rest of the dataset
About 179 days separate Kuna's last and first frost, putting it 25,165 of 40,283 ZIP codes nationally. Within ID, it ranks 22 of 320.
Learn more
Two guides worth reading on 83680: zone vs. frost date, on why Zone 7a and Kuna's frost date answer different questions, and the frost range, on how to read the range around Kuna's dates instead of trusting one.