Frost dates in Park County, Wyoming
The average last spring frost in Park County falls May 15 to Jun 3 and the average first fall frost Sep 14 to Sep 25, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4b to 5a. Places: Cody, Mammoth, Meeteetse, Ralston. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.
| ZIP | Place | Last spring frost | First fall frost | Zone |
|---|---|---|---|---|
| 82190 | Mammoth | Jun 3 | Sep 14 | 4b |
| 82414 | Cody | May 27 | Sep 25 | 5a |
| 82433 | Meeteetse | May 29 | Sep 18 | 4b |
| 82435 | Ralston | May 18 | Sep 22 | 5a |
| 82440 | Ralston | May 15 | Sep 25 | 5a |
| 82450 | May 27 | Sep 25 | 5a |
Nearby counties
Big Horn County Hot Springs County Teton County Washakie County Fremont County Sublette County
All Wyoming counties · Download Wyoming frost dates (CSV)
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