Frost dates for Cody, Wyoming
In a typical year, Cody’s last spring frost lands around May 12 and the first fall frost around Oct 1, a growing season of about 142 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 5a.
Right now the typical frost season has arrived; planting waits for spring.
| Odds | Last spring frost | First fall frost |
|---|---|---|
| 10 percent | Apr 27 | Sep 17 |
| 50 percent | May 12 | Oct 1 |
| 90 percent | May 27 | Oct 14 |
A 10 percent year is an early year, a 90 percent year a late one. Frost-sensitive planting usually waits for the 90 percent side of the last-frost band.
Soil in Cody is typically around 46°F at 4 inches this time of year, estimated from the last two weeks of normal air temperatures.
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Common questions
When is the last frost in Cody, Wyoming?
Cody’s last spring frost falls around May 12 in a typical year. One year in ten it is done by April 27, and one year in ten frost holds on until May 27. Frost-sensitive planting usually waits for the late side of that band.
When is the first fall frost in Cody?
The first fall frost arrives around October 1 in a typical year, as early as September 17 in an early year and as late as October 14 in a late one.
How long is the growing season in Cody?
About 142 days, counted between the typical last spring frost and the typical first fall frost.
What USDA zone is Cody in?
Cody is in USDA hardiness zone 5a under the 2023 USDA Plant Hardiness Zone Map.
Dates come from 30-year NOAA climate normals for the nearest reporting station. They describe odds, not a forecast.
Nearby cities
- Billings, MT (around May 10 to Oct 1)
- Sheridan, WY (around May 21 to Sep 23)
- Jackson, WY (around Jun 20 to Aug 31)
- Riverton, WY (around May 12 to Sep 24)
- Bozeman, MT (around May 26 to Sep 22)
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