FrostDateCheck

Pocatello, ID 83201 Frost Dates

When can you plant in Pocatello, ID?

Zone 6b

The last spring frost here typically falls around 05/02, about 247 days from today. The first fall frost typically arrives around 10/11, about 161 frost-free days later.

Pocatello sits in USDA Zone 6b (-5 to 0°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.

What to do before the first frost

About 6 weeks of growing season left in Pocatello before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

Why 05/02 isn't a guarantee

05/02 is the middle of 30 years of NOAA records, not a promise. Plant by 04/17 and you're betting against frost in roughly 9 years out of 10. 05/18 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Pocatello compares

At roughly 161 frost-free days, Pocatello places 31,939 of 40,283 ZIP codes in this dataset. Within ID, it ranks 83 of 320.

Learn more

the frost range covers how to read the range around Pocatello's dates instead of trusting one. local microclimates covers what one yard in Pocatello can differ from the 83201 normal.