FrostDateCheck

Pocatello, ID 83205 Frost Dates

When can you plant in Pocatello, ID?

Zone 6a

Around 05/02 is the usual last spring frost, about 247 days away. The first fall frost typically arrives around 10/11, about 161 frost-free days later.

Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Pocatello, not a forecast for this year.

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.

How much risk comes with planting early here

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 31,941 of 40,283 ZIP codes in this dataset. Within ID, it ranks 85 of 320.

Learn more

local microclimates covers what one yard in Pocatello can differ from the 83205 normal. zone vs. frost date covers why Zone 6a and Pocatello's frost date answer different questions.