Wamsutter, WY 82336 Frost Dates
When can you plant in Wamsutter, WY?
Around 06/05 is the usual last spring frost, about 281 days away. The first fall frost typically arrives around 09/14, about 101 frost-free days later.
The USDA Plant Hardiness Zone Map puts Wamsutter in Zone 4b (-25 to -20°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 2 weeks of growing season left in Wamsutter before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 06/05 isn't a guarantee
06/05 is the middle of 30 years of NOAA records, not a promise. Plant by 05/20 and you're betting against frost in roughly 9 years out of 10. 06/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Wamsutter compares
About 101 days separate Wamsutter's last and first frost, putting it 39,694 of 40,283 ZIP codes nationally. Within WY, it ranks 141 of 192.
Learn more
the frost range covers how to read the range around Wamsutter's dates instead of trusting one. local microclimates covers what one yard in Wamsutter can differ from the 82336 normal.