Pocatello, ID 83204 Frost Dates
83204, near Pocatello, ID: the frost window
The last spring frost here typically falls around 05/02, about 247 days from today. Fall's first freeze usually shows up around 10/11, roughly 161 days after the last spring frost.
Pocatello sits in USDA Zone 6a (-10 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
Pocatello's growing season runs out in roughly 6 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 05/02 isn't a guarantee
05/02 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 05/18 and only about 1 year in 10 sees frost after that.
Pocatello against the rest of the dataset
Pocatello's growing season runs about 161 days, ranking 31,940 of 40,283 US ZIP codes measured here, longest to shortest. Within ID, it ranks 84 of 320.
Learn more
Two guides worth reading on 83204: zone vs. frost date, on why Zone 6a and Pocatello's frost date answer different questions, and the frost range, on how to read the range around Pocatello's dates instead of trusting one.