Cody, WY 82414 Frost Dates
Frost dates for Cody, WY, ZIP 82414
The last spring frost here typically falls around 05/12, about 257 days from today. The first fall frost typically arrives around 10/01, about 140 frost-free days later.
Zone 5a (-20 to -15°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 Cody, not a forecast for this year.
What to do before the first frost
Zone 5a around Cody has about 5 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 05/12 isn't a guarantee
05/12 is the middle of 30 years of NOAA records, not a promise. Plant by 04/27 and you're betting against frost in roughly 9 years out of 10. 05/27 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Cody compares
About 140 days separate Cody's last and first frost, putting it 37,036 of 40,283 ZIP codes nationally. Within WY, it ranks 29 of 192.
Learn more
the frost range explains how to read the range around Cody's dates instead of trusting one, and local microclimates explains what one yard in Cody can differ from the 82414 normal.