Driggs, ID 83414 Frost Dates
83414, near Driggs, ID: the frost window
Typically, the last spring freeze lands around 06/14, roughly 290 days out. Fall's first freeze usually shows up around 09/11, roughly 85 days after the last spring frost.
Driggs sits in USDA Zone 5a (-20 to -15°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
Driggs's growing season runs out in roughly 2 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 06/14 isn't a guarantee
06/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 07/04 and only about 1 year in 10 sees frost after that.
Driggs against the rest of the dataset
Driggs's growing season runs about 85 days, ranking 39,986 of 40,283 US ZIP codes measured here, longest to shortest. Within ID, it ranks 274 of 320.
Learn more
Two guides worth reading on 83414: zone vs. frost date, on why Zone 5a and Driggs's frost date answer different questions, and the frost range, on how to read the range around Driggs's dates instead of trusting one.