Planting zones by state
Utah Planting Zones
Utah runs from zone 4a to zone 8b on the 2023 USDA map. Zone 6a is the most common, covering 32% of the state's ZIP codes. St. George is 8b, Salt Lake City is 7b and Park City is 6a.
Zones across Utah
| Zone | Average coldest night | Share of Utah ZIP codes |
|---|---|---|
| 4a | −30 to −25°F | under 1% |
| 5a | −20 to −15°F | 1% |
| 5b | −15 to −10°F | 10% |
| 6a | −10 to −5°F | 32% |
| 6b | −5 to 0°F | 17% |
| 7a | 0 to 5°F | 18% |
| 7b | 5 to 10°F | 17% |
| 8a | 10 to 15°F | 2% |
| 8b | 15 to 20°F | 3% |
Planting zone for every city and town in Utah
Each Utah town uses the ZIP code at its center. Big towns can cross into the next half-zone, so look up your own ZIP if you're near a line.
| City | Zone | Average coldest night |
|---|---|---|
| Alpine | 7a | 0 to 5°F |
| Alta | 6a | −10 to −5°F |
| Altamont | 5b | −15 to −10°F |
| Alton | 6a | −10 to −5°F |
| Amalga | 6a | −10 to −5°F |
| American Fork | 7a | 0 to 5°F |
| Annabella | 6a | −10 to −5°F |
| Antimony | 5b | −15 to −10°F |
| Apple Valley | 8a | 10 to 15°F |
| Aurora | 6a | −10 to −5°F |
| Ballard | 5b | −15 to −10°F |
| Bear River City | 6b | −5 to 0°F |
| Beaver | 6a | −10 to −5°F |
| Bicknell | 6a | −10 to −5°F |
| Big Water | 7a | 0 to 5°F |
| Blanding | 7a | 0 to 5°F |
| Bluff | 7a | 0 to 5°F |
| Bluffdale | 7a | 0 to 5°F |
| Boulder | 7a | 0 to 5°F |
| Bountiful | 6b | −5 to 0°F |
| Brian Head | 6a | −10 to −5°F |
| Brigham City | 6b | −5 to 0°F |
| Brighton | 6a | −10 to −5°F |
| Bryce Canyon City | 6a | −10 to −5°F |
| Cannonville | 6a | −10 to −5°F |
| Castle Dale | 6a | −10 to −5°F |
| Castle Valley | 7a | 0 to 5°F |
| Cedar City | 6b | −5 to 0°F |
| Cedar Fort | 6a | −10 to −5°F |
| Cedar Hills | 7a | 0 to 5°F |
| Centerfield | 6a | −10 to −5°F |
| Centerville | 6b | −5 to 0°F |
| Central Valley | 6a | −10 to −5°F |
| Charleston | 6a | −10 to −5°F |
| Circleville | 5b | −15 to −10°F |
| Clarkston | 6a | −10 to −5°F |
| Clawson | 6a | −10 to −5°F |
| Clearfield | 7a | 0 to 5°F |
| Cleveland | 6a | −10 to −5°F |
| Clinton | 7a | 0 to 5°F |
| Coalville | 6a | −10 to −5°F |
| Copperton metro | 7a | 0 to 5°F |
| Corinne | 6b | −5 to 0°F |
| Cornish | 6a | −10 to −5°F |
| Cottonwood Heights | 7b | 5 to 10°F |
| Daniel | 6a | −10 to −5°F |
| Delta | 6a | −10 to −5°F |
| Deweyville | 6b | −5 to 0°F |
| Draper | 7a | 0 to 5°F |
| Duchesne | 6a | −10 to −5°F |
| Dutch John | 5b | −15 to −10°F |
| Eagle Mountain | 6b | −5 to 0°F |
| East Carbon | 6b | −5 to 0°F |
| Elk Ridge | 7a | 0 to 5°F |
| Elmo | 6a | −10 to −5°F |
| Elsinore | 6a | −10 to −5°F |
| Elwood | 6b | −5 to 0°F |
| Emery | 6b | −5 to 0°F |
| Emigration Canyon metro | 6b | −5 to 0°F |
| Enoch | 6b | −5 to 0°F |
| Enterprise | 7a | 0 to 5°F |
| Ephraim | 6a | −10 to −5°F |
| Erda | 7a | 0 to 5°F |
| Escalante | 7a | 0 to 5°F |
| Eureka | 6b | −5 to 0°F |
| Fairfield | 6a | −10 to −5°F |
| Fairview | 5b | −15 to −10°F |
| Farmington | 7b | 5 to 10°F |
| Farr West | 6b | −5 to 0°F |
| Fayette | 6b | −5 to 0°F |
| Ferron | 6b | −5 to 0°F |
| Fielding | 6a | −10 to −5°F |
| Fillmore | 6a | −10 to −5°F |
| Fountain Green | 5b | −15 to −10°F |
| Francis | 6a | −10 to −5°F |
| Fruit Heights | 7b | 5 to 10°F |
| Garden City | 5a | −20 to −15°F |
| Garland | 6b | −5 to 0°F |
| Genola | 6b | −5 to 0°F |
| Glendale | 6b | −5 to 0°F |
| Glenwood | 6a | −10 to −5°F |
| Goshen | 6b | −5 to 0°F |
| Grantsville | 7a | 0 to 5°F |
| Green River | 6b | −5 to 0°F |
| Gunnison | 6a | −10 to −5°F |
| Hanksville | 7a | 0 to 5°F |
| Harrisville | 6b | −5 to 0°F |
| Hatch | 6a | −10 to −5°F |
| Heber | 6a | −10 to −5°F |
| Helper | 6b | −5 to 0°F |
| Henefer | 6a | −10 to −5°F |
| Henrieville | 6b | −5 to 0°F |
| Herriman | 7a | 0 to 5°F |
| Hideout | 6a | −10 to −5°F |
| Highland | 7a | 0 to 5°F |
| Hildale | 7a | 0 to 5°F |
| Hinckley | 6a | −10 to −5°F |
| Holden | 6a | −10 to −5°F |
| Holladay | 7b | 5 to 10°F |
| Honeyville | 6b | −5 to 0°F |
| Hooper | 7a | 0 to 5°F |
| Howell | 6a | −10 to −5°F |
| Huntington | 6a | −10 to −5°F |
| Huntsville | 6a | −10 to −5°F |
| Hurricane | 8b | 15 to 20°F |
| Hyde Park | 6a | −10 to −5°F |
| Hyrum | 6a | −10 to −5°F |
| Independence | 6a | −10 to −5°F |
| Interlaken | 6a | −10 to −5°F |
| Ivins | 8b | 15 to 20°F |
| Joseph | 6a | −10 to −5°F |
| Junction | 6a | −10 to −5°F |
| Kamas | 5b | −15 to −10°F |
| Kanab | 7a | 0 to 5°F |
| Kanarraville | 6b | −5 to 0°F |
| Kanosh | 6b | −5 to 0°F |
| Kaysville | 7b | 5 to 10°F |
| Kearns metro | 7b | 5 to 10°F |
| Kingston | 5b | −15 to −10°F |
| Koosharem | 5b | −15 to −10°F |
| La Verkin | 8a | 10 to 15°F |
| Lake Point | 7b | 5 to 10°F |
| Laketown | 5b | −15 to −10°F |
| Layton | 7a | 0 to 5°F |
| Leamington | 6a | −10 to −5°F |
| Leeds | 8b | 15 to 20°F |
| Lehi | 7a | 0 to 5°F |
| Levan | 6a | −10 to −5°F |
| Lewiston | 6a | −10 to −5°F |
| Lindon | 7a | 0 to 5°F |
| Loa | 6a | −10 to −5°F |
| Logan | 6a | −10 to −5°F |
| Lyman | 6a | −10 to −5°F |
| Lynndyl | 6a | −10 to −5°F |
| Magna metro | 7b | 5 to 10°F |
| Manila | 5b | −15 to −10°F |
| Manti | 6a | −10 to −5°F |
| Mantua | 6a | −10 to −5°F |
| Mapleton | 7a | 0 to 5°F |
| Marriott-Slaterville | 7a | 0 to 5°F |
| Marysvale | 6a | −10 to −5°F |
| Mayfield | 6a | −10 to −5°F |
| Meadow | 6a | −10 to −5°F |
| Mendon | 6a | −10 to −5°F |
| Midvale | 7b | 5 to 10°F |
| Midway | 6a | −10 to −5°F |
| Milford | 6a | −10 to −5°F |
| Millcreek | 7b | 5 to 10°F |
| Millville | 6a | −10 to −5°F |
| Minersville | 6a | −10 to −5°F |
| Moab | 7a | 0 to 5°F |
| Mona | 6b | −5 to 0°F |
| Monroe | 6a | −10 to −5°F |
| Monticello | 6b | −5 to 0°F |
| Morgan | 6a | −10 to −5°F |
| Moroni | 5b | −15 to −10°F |
| Mount Pleasant | 5b | −15 to −10°F |
| Murray | 7b | 5 to 10°F |
| Myton | 5b | −15 to −10°F |
| Naples | 5b | −15 to −10°F |
| Nephi | 6a | −10 to −5°F |
| New Harmony | 7a | 0 to 5°F |
| Newton | 6a | −10 to −5°F |
| Nibley | 6a | −10 to −5°F |
| North Logan | 6a | −10 to −5°F |
| North Ogden | 6b | −5 to 0°F |
| North Salt Lake | 7b | 5 to 10°F |
| Oak City | 6b | −5 to 0°F |
| Oakley | 5b | −15 to −10°F |
| Ogden | 7a | 0 to 5°F |
| Orangeville | 6a | −10 to −5°F |
| Orderville | 6b | −5 to 0°F |
| Orem | 7a | 0 to 5°F |
| Panguitch | 6a | −10 to −5°F |
| Paradise | 6a | −10 to −5°F |
| Paragonah | 6a | −10 to −5°F |
| Park City | 6a | −10 to −5°F |
| Parowan | 6a | −10 to −5°F |
| Payson | 7a | 0 to 5°F |
| Perry | 6a | −10 to −5°F |
| Plain City | 7a | 0 to 5°F |
| Pleasant Grove | 7a | 0 to 5°F |
| Pleasant View | 6b | −5 to 0°F |
| Plymouth | 6a | −10 to −5°F |
| Portage | 6a | −10 to −5°F |
| Price | 6a | −10 to −5°F |
| Providence | 6a | −10 to −5°F |
| Provo | 7a | 0 to 5°F |
| Randolph | 4a | −30 to −25°F |
| Redmond | 6a | −10 to −5°F |
| Richfield | 6a | −10 to −5°F |
| Richmond | 6a | −10 to −5°F |
| River Heights | 6a | −10 to −5°F |
| Riverdale | 7a | 0 to 5°F |
| Riverton | 7a | 0 to 5°F |
| Rockville | 8a | 10 to 15°F |
| Rocky Ridge | 6b | −5 to 0°F |
| Roosevelt | 5b | −15 to −10°F |
| Roy | 7a | 0 to 5°F |
| Rush Valley | 6a | −10 to −5°F |
| Salem | 7a | 0 to 5°F |
| Salina | 6a | −10 to −5°F |
| Salt Lake City | 7b | 5 to 10°F |
| Sandy | 7b | 5 to 10°F |
| Santa Clara | 8a | 10 to 15°F |
| Santaquin | 6b | −5 to 0°F |
| Saratoga Springs | 7a | 0 to 5°F |
| Scipio | 5b | −15 to −10°F |
| Scofield | 6a | −10 to −5°F |
| Sigurd | 6a | −10 to −5°F |
| Smithfield | 6a | −10 to −5°F |
| Snowville | 6a | −10 to −5°F |
| South Jordan | 7a | 0 to 5°F |
| South Ogden | 7a | 0 to 5°F |
| South Salt Lake | 7b | 5 to 10°F |
| South Weber | 7a | 0 to 5°F |
| Spanish Fork | 6a | −10 to −5°F |
| Spring City | 6a | −10 to −5°F |
| Springdale | 6b | −5 to 0°F |
| Springville | 7a | 0 to 5°F |
| St. George | 8b | 15 to 20°F |
| Sterling | 6a | −10 to −5°F |
| Stockton | 6b | −5 to 0°F |
| Sunset | 7a | 0 to 5°F |
| Syracuse | 7b | 5 to 10°F |
| Tabiona | 6a | −10 to −5°F |
| Taylorsville | 7b | 5 to 10°F |
| Tooele | 7a | 0 to 5°F |
| Toquerville | 8b | 15 to 20°F |
| Torrey | 6a | −10 to −5°F |
| Tremonton | 6b | −5 to 0°F |
| Trenton | 5b | −15 to −10°F |
| Tropic | 6a | −10 to −5°F |
| Uintah | 7a | 0 to 5°F |
| Vernal | 5b | −15 to −10°F |
| Vernon | 6b | −5 to 0°F |
| Vineyard | 7a | 0 to 5°F |
| Virgin | 8a | 10 to 15°F |
| Wales | 5b | −15 to −10°F |
| Wallsburg | 6a | −10 to −5°F |
| Washington | 8b | 15 to 20°F |
| Washington Terrace | 7a | 0 to 5°F |
| Wellington | 6a | −10 to −5°F |
| Wellsville | 6a | −10 to −5°F |
| Wendover | 6b | −5 to 0°F |
| West Bountiful | 7b | 5 to 10°F |
| West Haven | 7a | 0 to 5°F |
| West Jordan | 7b | 5 to 10°F |
| West Point | 7a | 0 to 5°F |
| West Valley City | 7b | 5 to 10°F |
| White City metro | 7b | 5 to 10°F |
| Willard | 7a | 0 to 5°F |
| Woodland Hills | 7a | 0 to 5°F |
| Woodruff | 5a | −20 to −15°F |
| Woods Cross | 7b | 5 to 10°F |
Source: USDA Plant Hardiness Zone Map, 2023, Agricultural Research Service, U.S. Department of Agriculture; ZIP code table from the PRISM Group, Oregon State University (accessed Oct 2026). This list is our own summary, not the official USDA map. See how we calculate.
Frequently asked questions
What planting zone is Utah?
Utah spans zones 4a to 8b on the 2023 USDA map, and zone 6a is the most common. Look up your ZIP code for your exact zone.
What zone is St. George, UT?
St. George is zone 8b, where the coldest night of an average winter falls from 15 to 20°F. Plants rated hardy to zone 8 or colder should survive a typical winter there.
More for Utah: Utah climate zones (insulation) · Last frost dates in Utah · Frost line depth by state