FrostDateCheck

Clearmont, WY 82845 Frost Dates

When can you plant in Clearmont, WY?

Zone 5a

The last spring frost here typically falls around 05/18, about 263 days from today. The first fall frost typically arrives around 09/24, about 127 frost-free days later.

Clearmont 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.

What to do before the first frost

About 4 weeks of growing season left in Clearmont 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

05/18 is the middle of 30 years of NOAA records, not a promise. Plant by 05/04 and you're betting against frost in roughly 9 years out of 10. 06/02 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Clearmont compares

At roughly 127 frost-free days, Clearmont places 38,667 of 40,283 ZIP codes in this dataset. Within WY, it ranks 72 of 192.

Learn more

zone vs. frost date covers why Zone 5a and Clearmont's frost date answer different questions. the frost range covers how to read the range around Clearmont's dates instead of trusting one.