USDA hardiness zones in Oklahoma
| Zone | Avg. extreme minimum | ZIP codes | Example cities |
|---|---|---|---|
| Zone 6b | −5 to 0°F | 13 | Guymon |
| Zone 7a | 0 to 5°F | 160 | Enid, Stillwater, Bartlesville, Ponca City |
| Zone 7b | 5 to 10°F | 381 | Oklahoma City, Tulsa, Norman, Broken Arrow |
| Zone 8a | 10 to 15°F | 95 | Ardmore, Duncan, Durant, Idabel |
Growing zone and frost dates by city
| City | Zone | Frost dates |
|---|---|---|
| Oklahoma City | 7b (5 to 10°F) | Oklahoma City frost dates |
| Tulsa | 7b (5 to 10°F) | Tulsa frost dates |
| Norman | 7b (5 to 10°F) | Norman frost dates |
| Broken Arrow | 7b (5 to 10°F) | Broken Arrow frost dates |
| Edmond | 7b (5 to 10°F) | Edmond frost dates |
| Lawton | 7b (5 to 10°F) | Lawton frost dates |
| Moore | 7b (5 to 10°F) | Moore frost dates |
| Midwest City | 7b (5 to 10°F) | Midwest City frost dates |
| Enid | 7a (0 to 5°F) | Enid frost dates |
| Stillwater | 7a (0 to 5°F) | Stillwater frost dates |
| Owasso | 7b (5 to 10°F) | Owasso frost dates |
| Bartlesville | 7a (0 to 5°F) | Bartlesville frost dates |
| Muskogee | 7b (5 to 10°F) | Muskogee frost dates |
| Bixby | 7b (5 to 10°F) | Bixby frost dates |
| Shawnee | 7b (5 to 10°F) | Shawnee frost dates |
| Jenks | 7b (5 to 10°F) | Jenks frost dates |
| Yukon | 7b (5 to 10°F) | Yukon frost dates |
| Ardmore | 8a (10 to 15°F) | Ardmore frost dates |
| Mustang | 7b (5 to 10°F) | Mustang frost dates |
| Ponca City | 7a (0 to 5°F) | Ponca City frost dates |
| Sapulpa | 7b (5 to 10°F) | Sapulpa frost dates |
| Duncan | 8a (10 to 15°F) | Duncan frost dates |
| Durant | 8a (10 to 15°F) | Durant frost dates |
| Del City | 7b (5 to 10°F) | Del City frost dates |
| El Reno | 7b (5 to 10°F) | El Reno frost dates |
| Claremore | 7a (0 to 5°F) | Claremore frost dates |
| Sand Springs | 7b (5 to 10°F) | Sand Springs frost dates |
| Bethany | 7b (5 to 10°F) | Bethany frost dates |
| Altus | 7b (5 to 10°F) | Altus frost dates |
| McAlester | 7b (5 to 10°F) | McAlester frost dates |
| Tahlequah | 7b (5 to 10°F) | Tahlequah frost dates |
| Chickasha | 7b (5 to 10°F) | Chickasha frost dates |
| Ada | 7b (5 to 10°F) | Ada frost dates |
| Newcastle | 7b (5 to 10°F) | Newcastle frost dates |
| Glenpool | 7b (5 to 10°F) | Glenpool frost dates |
| Miami | 7a (0 to 5°F) | Miami frost dates |
| Choctaw | 7b (5 to 10°F) | Choctaw frost dates |
| Guthrie | 7b (5 to 10°F) | Guthrie frost dates |
| Guymon | 6b (−5 to 0°F) | Guymon frost dates |
| Weatherford | 7b (5 to 10°F) | Weatherford frost dates |
| Woodward | 7a (0 to 5°F) | Woodward frost dates |
| Coweta | 7b (5 to 10°F) | Coweta frost dates |
| Okmulgee | 7b (5 to 10°F) | Okmulgee frost dates |
| Elk City | 7b (5 to 10°F) | Elk City frost dates |
| Warr Acres | 7b (5 to 10°F) | Warr Acres frost dates |
| Blanchard | 7b (5 to 10°F) | Blanchard frost dates |
| Collinsville | 7a (0 to 5°F) | Collinsville frost dates |
| Pryor Creek | 7a (0 to 5°F) | Pryor Creek frost dates |
| Piedmont | 7b (5 to 10°F) | Piedmont frost dates |
| The Village | 7b (5 to 10°F) | The Village frost dates |
| Poteau | 7b (5 to 10°F) | Poteau frost dates |
| Skiatook | 7b (5 to 10°F) | Skiatook frost dates |
| Sallisaw | 7b (5 to 10°F) | Sallisaw frost dates |
| Tuttle | 7b (5 to 10°F) | Tuttle frost dates |
| Wagoner | 7b (5 to 10°F) | Wagoner frost dates |
| Cushing | 7b (5 to 10°F) | Cushing frost dates |
| Clinton | 7b (5 to 10°F) | Clinton frost dates |
| Noble | 7b (5 to 10°F) | Noble frost dates |
| Catoosa | 7b (5 to 10°F) | Catoosa frost dates |
| Grove | 7a (0 to 5°F) | Grove frost dates |
| Seminole | 7b (5 to 10°F) | Seminole frost dates |
| Harrah | 7b (5 to 10°F) | Harrah frost dates |
| Purcell | 7b (5 to 10°F) | Purcell frost dates |
| Idabel | 8a (10 to 15°F) | Idabel frost dates |
| Tecumseh | 7b (5 to 10°F) | Tecumseh frost dates |
| Pauls Valley | 7b (5 to 10°F) | Pauls Valley frost dates |
| Blackwell | 7a (0 to 5°F) | Blackwell frost dates |
| Holdenville | 7b (5 to 10°F) | Holdenville frost dates |
| Verdigris | 7a (0 to 5°F) | Verdigris frost dates |
| Henryetta | 7b (5 to 10°F) | Henryetta frost dates |
| Anadarko | 7b (5 to 10°F) | Anadarko frost dates |
| Vinita | 7a (0 to 5°F) | Vinita frost dates |
| Lone Grove | 8a (10 to 15°F) | Lone Grove frost dates |
| Kingfisher | 7b (5 to 10°F) | Kingfisher frost dates |
| Hugo | 8a (10 to 15°F) | Hugo frost dates |
Frequently asked questions
What growing zone is Oklahoma in?
Oklahoma’s ZIP codes span USDA zones 6b to 8a, and 7b 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 Oklahoma frost dates page.