USDA hardiness zones in Utah
| Zone | Avg. extreme minimum | ZIP codes | Example cities |
|---|---|---|---|
| Zone 5a | −20 to −15°F | 2 | — |
| Zone 5b | −15 to −10°F | 31 | Vernal, Roosevelt |
| Zone 6a | −10 to −5°F | 103 | Logan, Heber, Smithfield, North Logan |
| Zone 6b | −5 to 0°F | 60 | Ogden, Eagle Mountain, Bountiful, Cedar City |
| Zone 7a | 0 to 5°F | 52 | Provo, Lehi, Orem, South Jordan |
| Zone 7b | 5 to 10°F | 35 | Salt Lake City, West Valley City, West Jordan, Sandy |
| Zone 8a | 10 to 15°F | 7 | — |
| Zone 8b | 15 to 20°F | 8 | St. George, Washington, Hurricane, Ivins |
Growing zone and frost dates by city
| City | Zone | Frost dates |
|---|---|---|
| Salt Lake City | 7b (5 to 10°F) | Salt Lake City frost dates |
| West Valley City | 7b (5 to 10°F) | West Valley City frost dates |
| West Jordan | 7b (5 to 10°F) | West Jordan frost dates |
| Provo | 7a (0 to 5°F) | Provo frost dates |
| St. George | 8b (15 to 20°F) | St. George frost dates |
| Lehi | 7a (0 to 5°F) | Lehi frost dates |
| Orem | 7a (0 to 5°F) | Orem frost dates |
| Sandy | 7b (5 to 10°F) | Sandy frost dates |
| Ogden | 6b (−5 to 0°F) | Ogden frost dates |
| South Jordan | 7a (0 to 5°F) | South Jordan frost dates |
| Layton | 7a (0 to 5°F) | Layton frost dates |
| Eagle Mountain | 6b (−5 to 0°F) | Eagle Mountain frost dates |
| Millcreek | 7b (5 to 10°F) | Millcreek frost dates |
| Herriman | 7a (0 to 5°F) | Herriman frost dates |
| Saratoga Springs | 7a (0 to 5°F) | Saratoga Springs frost dates |
| Taylorsville | 7b (5 to 10°F) | Taylorsville frost dates |
| Logan | 6a (−10 to −5°F) | Logan frost dates |
| Murray | 7b (5 to 10°F) | Murray frost dates |
| Draper | 7a (0 to 5°F) | Draper frost dates |
| Spanish Fork | 7a (0 to 5°F) | Spanish Fork frost dates |
| Riverton | 7a (0 to 5°F) | Riverton frost dates |
| Bountiful | 6b (−5 to 0°F) | Bountiful frost dates |
| Tooele | 7a (0 to 5°F) | Tooele frost dates |
| Cedar City | 6b (−5 to 0°F) | Cedar City frost dates |
| American Fork | 7a (0 to 5°F) | American Fork frost dates |
| Syracuse | 7b (5 to 10°F) | Syracuse frost dates |
| Roy | 7a (0 to 5°F) | Roy frost dates |
| Pleasant Grove | 7a (0 to 5°F) | Pleasant Grove frost dates |
| Washington | 8b (15 to 20°F) | Washington frost dates |
| Midvale | 7b (5 to 10°F) | Midvale frost dates |
| Springville | 7a (0 to 5°F) | Springville frost dates |
| Kearns | 7b (5 to 10°F) | Kearns frost dates |
| Magna | 7b (5 to 10°F) | Magna frost dates |
| Clearfield | 7a (0 to 5°F) | Clearfield frost dates |
| Kaysville | 7b (5 to 10°F) | Kaysville frost dates |
| Cottonwood Heights | 7b (5 to 10°F) | Cottonwood Heights frost dates |
| Holladay | 7b (5 to 10°F) | Holladay frost dates |
| South Salt Lake | 7b (5 to 10°F) | South Salt Lake frost dates |
| Farmington | 7b (5 to 10°F) | Farmington frost dates |
| Hurricane | 8b (15 to 20°F) | Hurricane frost dates |
| West Haven | 7a (0 to 5°F) | West Haven frost dates |
| Payson | 7a (0 to 5°F) | Payson frost dates |
| Clinton | 7a (0 to 5°F) | Clinton frost dates |
| North Salt Lake | 7b (5 to 10°F) | North Salt Lake frost dates |
| North Ogden | 6b (−5 to 0°F) | North Ogden frost dates |
| Highland | 7a (0 to 5°F) | Highland frost dates |
| Brigham City | 6b (−5 to 0°F) | Brigham City frost dates |
| Heber | 6a (−10 to −5°F) | Heber frost dates |
| Bluffdale | 7a (0 to 5°F) | Bluffdale frost dates |
| Santaquin | 6b (−5 to 0°F) | Santaquin frost dates |
| South Ogden | 7a (0 to 5°F) | South Ogden frost dates |
| Centerville | 6b (−5 to 0°F) | Centerville frost dates |
| Grantsville | 7a (0 to 5°F) | Grantsville frost dates |
| Mapleton | 7a (0 to 5°F) | Mapleton frost dates |
| Vineyard | 7a (0 to 5°F) | Vineyard frost dates |
| Smithfield | 6a (−10 to −5°F) | Smithfield frost dates |
| West Point | 7a (0 to 5°F) | West Point frost dates |
| Tremonton | 6b (−5 to 0°F) | Tremonton frost dates |
| Salem | 7a (0 to 5°F) | Salem frost dates |
| Lindon | 7a (0 to 5°F) | Lindon frost dates |
| North Logan | 6a (−10 to −5°F) | North Logan frost dates |
| Ivins | 8b (15 to 20°F) | Ivins frost dates |
| Woods Cross | 7b (5 to 10°F) | Woods Cross frost dates |
| Pleasant View | 6b (−5 to 0°F) | Pleasant View frost dates |
| Hyrum | 6a (−10 to −5°F) | Hyrum frost dates |
| Vernal | 5b (−15 to −10°F) | Vernal frost dates |
| Alpine | 7a (0 to 5°F) | Alpine frost dates |
| Cedar Hills | 7a (0 to 5°F) | Cedar Hills frost dates |
| Hooper | 7a (0 to 5°F) | Hooper frost dates |
| Providence | 6a (−10 to −5°F) | Providence frost dates |
| Plain City | 7a (0 to 5°F) | Plain City frost dates |
| Riverdale | 7a (0 to 5°F) | Riverdale frost dates |
| Washington Terrace | 7a (0 to 5°F) | Washington Terrace frost dates |
| Nibley | 6a (−10 to −5°F) | Nibley frost dates |
| Enoch | 6b (−5 to 0°F) | Enoch frost dates |
| Santa Clara | 8b (15 to 20°F) | Santa Clara frost dates |
| Park City | 6a (−10 to −5°F) | Park City frost dates |
| Richfield | 6a (−10 to −5°F) | Richfield frost dates |
| Price | 6a (−10 to −5°F) | Price frost dates |
| South Weber | 7a (0 to 5°F) | South Weber frost dates |
| Farr West | 6b (−5 to 0°F) | Farr West frost dates |
| Nephi | 6a (−10 to −5°F) | Nephi frost dates |
| Harrisville | 6b (−5 to 0°F) | Harrisville frost dates |
| Roosevelt | 5b (−15 to −10°F) | Roosevelt frost dates |
| Ephraim | 6a (−10 to −5°F) | Ephraim frost dates |
| Perry | 6a (−10 to −5°F) | Perry frost dates |
| Midway | 6a (−10 to −5°F) | Midway frost dates |
| Fruit Heights | 7b (5 to 10°F) | Fruit Heights frost dates |
| West Bountiful | 7b (5 to 10°F) | West Bountiful frost dates |
| Hyde Park | 6a (−10 to −5°F) | Hyde Park frost dates |
| Sunset | 7a (0 to 5°F) | Sunset frost dates |
| Kanab | 7a (0 to 5°F) | Kanab frost dates |
| Moab | 7a (0 to 5°F) | Moab frost dates |
| White City | 7b (5 to 10°F) | White City frost dates |
Frequently asked questions
What growing zone is Utah in?
Utah’s ZIP codes span USDA zones 5a to 8b, and 6a is the most common. Zones vary with elevation and distance from water, so check your own ZIP code.
When should I plant?
Hardiness zones are about winter cold, not planting dates. For timing, use the last spring frost date for your city on our Utah frost dates page.