Frost dates in Fremont County, Wyoming
The average last spring frost in Fremont County falls May 7 to Jun 1 and the average first fall frost Sep 13 to Oct 3, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4b to 5a. Places: Arapahoe, Boulder Flats, Crowheart, Dubois, Ethete, Fort Washakie. 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 |
|---|---|---|---|---|
| 82310 | Jeffrey City | Jun 1 | Sep 13 | 4b |
| 82501 | Arapahoe | May 12 | Sep 24 | 5a |
| 82510 | Ethete | May 16 | Sep 28 | 5a |
| 82512 | Crowheart | May 21 | Sep 20 | 5a |
| 82513 | Dubois | Jun 1 | Sep 14 | 4b |
| 82514 | Fort Washakie | May 21 | Sep 20 | 5a |
| 82515 | Hudson | May 18 | Sep 27 | 5a |
| 82516 | Johnstown | May 21 | Sep 20 | 5a |
| 82520 | Boulder Flats | May 13 | Oct 2 | 5a |
| 82523 | Pavillion | May 21 | Sep 20 | 5a |
| 82642 | May 7 | Oct 3 | 5a | |
| 82649 | Shoshoni | May 7 | Oct 3 | 4b |
Nearby counties
Hot Springs County Sublette County Washakie County Natrona County Sweetwater County Big Horn County
All Wyoming counties · Download Wyoming frost dates (CSV)
Never miss a frost: get The Dial
Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
- Freeze alerts
- Soil-temp heads-up
- Weekly yard to-dos
Free. One weekly email plus alerts when your ZIP has a frost or a soil-temperature change worth acting on. After you submit, Kit (our email provider) sends a confirmation email: check your email and click the link to confirm. You aren't subscribed until you do. We collect only your email address and ZIP, sent to Kit to deliver The Dial. Unsubscribe anytime.