Frost dates in Iron County, Utah
The average last spring frost in Iron County falls May 9 to Jun 21 and the average first fall frost Sep 12 to Oct 11, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5b to 7a. Places: Beryl Junction, Brian Head, Cedar City, Kanarraville, Modena, Newcastle. 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 |
|---|---|---|---|---|
| 84714 | Beryl Junction | May 31 | Sep 20 | 5b |
| 84719 | Brian Head | Jun 21 | Sep 12 | 6a |
| 84720 | Cedar City | May 9 | Oct 11 | 6b |
| 84721 | Cedar City | May 21 | Sep 29 | 6b |
| 84742 | Kanarraville | May 9 | Oct 11 | 6b |
| 84753 | Modena | May 20 | Oct 3 | 7a |
| 84756 | Newcastle | May 31 | Sep 20 | 5b |
| 84760 | Paragonah | Jun 12 | Sep 12 | 6a |
| 84761 | Parowan | Jun 21 | Sep 12 | 6a |
| 84772 | Summit | Jun 21 | Sep 12 | 6b |
Nearby counties
Washington County Beaver County Kane County Garfield County Piute County Sevier County
All Utah counties · Download Utah frost dates (CSV)
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