Utah frost dates
Median last spring frost and first fall frost for 251 places in Utah. Last frost ranges from Mar 9 in Lake Powell to Jun 21 in Brian Head.
Largest cities
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Salt Lake City | Apr 25 | Oct 18 | 176 d | 7b |
| West Valley City | Apr 8 | Oct 31 | 206 d | 7b |
| Provo | Apr 18 | Oct 21 | 186 d | 7a |
| West Jordan | Apr 18 | Oct 22 | 187 d | 7b |
| Orem | Apr 18 | Oct 21 | 186 d | 7a |
| Sandy | Apr 29 | Oct 22 | 176 d | 7b |
| Ogden | Apr 21 | Oct 23 | 185 d | 7a |
| Layton | Apr 29 | Oct 20 | 174 d | 7a |
| Saint George | Mar 14 | Nov 10 | 241 d | 8b |
| South Jordan | Apr 18 | Oct 22 | 187 d | 7a |
| Lehi | Apr 30 | Oct 9 | 162 d | 6b |
| Logan | May 8 | Oct 2 | 147 d | 6a |
| Draper | Apr 18 | Oct 22 | 187 d | 7a |
| Bountiful | Apr 25 | Oct 24 | 182 d | 6b |
| Riverton | Apr 18 | Oct 22 | 187 d | 7a |
| Pleasant Grove | Apr 17 | Oct 25 | 191 d | 7a |
| Roy | Apr 22 | Oct 22 | 183 d | 7a |
| Spanish Fork | Apr 25 | Oct 18 | 176 d | 6a |
| Tooele | May 2 | Oct 16 | 167 d | 7a |
| Midvale | Apr 29 | Oct 22 | 176 d | 7b |
| Springville | Apr 25 | Oct 18 | 176 d | 6b |
| Herriman | Apr 18 | Oct 22 | 187 d | 7a |
| Clearfield | Apr 19 | Oct 19 | 183 d | 7a |
| Kaysville | Apr 19 | Oct 19 | 183 d | 7b |
| Cedar City | May 4 | Oct 13 | 162 d | 6b |
| American Fork | Apr 17 | Oct 25 | 191 d | 6a |
| Syracuse | Apr 29 | Oct 20 | 174 d | 7b |
| Eagle Mountain | Apr 30 | Oct 9 | 162 d | 6b |
| Magna | Apr 3 | Nov 4 | 215 d | 7b |
| Saratoga Springs | Apr 30 | Oct 9 | 162 d | 7a |
| Washington | Mar 14 | Nov 10 | 241 d | 8b |
| Farmington | Apr 19 | Oct 19 | 183 d | 7b |
| North Salt Lake | Apr 24 | Oct 19 | 178 d | 7b |
| Payson | May 4 | Oct 11 | 160 d | 6b |
| Brigham City | May 5 | Oct 5 | 153 d | 6b |
| Centerville | Apr 25 | Oct 24 | 182 d | 6b |
| Hurricane | Apr 1 | Nov 5 | 218 d | 8b |
| Woods Cross | Apr 24 | Oct 19 | 178 d | 7b |
| Vernal | May 7 | Oct 6 | 152 d | 5b |
| Lindon | Apr 17 | Oct 25 | 191 d | 7a |