Frost dates in Box Elder County, Utah
The average last spring frost in Box Elder County falls Apr 24 to Jun 3 and the average first fall frost Sep 18 to Oct 17, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a to 7a. Places: Bear River City, Brigham City, Corinne, Deweyville, Honeyville, Howell. 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 |
|---|---|---|---|---|
| 84301 | Bear River City | Apr 24 | Oct 17 | 6b |
| 84302 | Brigham City | May 5 | Oct 5 | 6b |
| 84306 | May 3 | Oct 12 | 6a | |
| 84307 | Corinne | May 12 | Oct 5 | 6b |
| 84309 | Deweyville | Apr 24 | Oct 17 | 6b |
| 84311 | Riverside | May 3 | Oct 12 | 6a |
| 84312 | Riverside | Apr 24 | Oct 17 | 6b |
| 84313 | Jun 3 | Sep 18 | 6b | |
| 84314 | Honeyville | Apr 24 | Oct 17 | 6b |
| 84316 | Howell | May 17 | Sep 24 | 6a |
| 84324 | Mantua | May 5 | Oct 5 | 6a |
| 84329 | May 21 | Oct 2 | 6a | |
| 84330 | Plymouth | May 3 | Oct 12 | 6a |
| 84331 | Portage | May 22 | Sep 20 | 6a |
| 84334 | Riverside | Apr 24 | Oct 17 | 6b |
| 84336 | Snowville | May 12 | Oct 5 | 6a |
| 84337 | Thatcher | Apr 24 | Oct 17 | 6b |
| 84340 | South Willard | May 5 | Oct 5 | 7a |
Nearby counties
Cache County Weber County Davis County Morgan County Rich County Salt Lake County
All Utah counties · Download Utah frost dates (CSV)
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