Edgerton, WY 82635 Frost Dates
When can you plant in Edgerton, WY?
The last spring frost here typically falls around 05/22, about 267 days from today. The first fall frost typically arrives around 09/22, about 121 frost-free days later.
The USDA Plant Hardiness Zone Map puts Edgerton in Zone 5a (-20 to -15°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 4 weeks of growing season left in Edgerton before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/22 isn't a guarantee
05/22 is the middle of 30 years of NOAA records, not a promise. Plant by 05/08 and you're betting against frost in roughly 9 years out of 10. 06/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Edgerton compares
Edgerton's growing season runs about 121 days, ranking 39,057 of 40,283 US ZIP codes measured here, longest to shortest. Within WY, it ranks 98 of 192.
Learn more
the frost range covers how to read the range around Edgerton's dates instead of trusting one. local microclimates covers what one yard in Edgerton can differ from the 82635 normal.