| City | Population | Last spring frost | First fall frost | Growing season | Zone |
|---|---|---|---|---|---|
| Oklahoma City | 719,849 | Apr 4 | Nov 2 | 213 days | 7b |
| Tulsa | 416,209 | Mar 31 | Nov 4 | 220 days | 7b |
| Norman | 130,943 | Apr 3 | Nov 3 | 212 days | 7b |
| Broken Arrow | 124,991 | Apr 1 | Nov 1 | 212 days | 7b |
| Edmond | 100,479 | Apr 10 | Oct 28 | 199 days | 7b |
| Lawton | 90,503 | Mar 26 | Nov 7 | 225 days | 7b |
| Moore | 63,609 | Mar 31 | Nov 5 | 219 days | 7b |
| Midwest City | 58,799 | Apr 2 | Nov 5 | 217 days | 7b |
| Enid | 50,297 | Apr 6 | Nov 1 | 209 days | 7a |
| Stillwater | 50,046 | Apr 5 | Oct 30 | 206 days | 7a |
| Owasso | 43,117 | Mar 31 | Nov 4 | 220 days | 7b |
| Bartlesville | 38,278 | Apr 11 | Oct 24 | 195 days | 7a |
| Muskogee | 36,760 | Apr 7 | Oct 30 | 208 days | 7b |
| Bixby | 32,766 | Apr 1 | Nov 1 | 212 days | 7b |
| Shawnee | 32,474 | Mar 30 | Nov 5 | 221 days | 7b |
| Jenks | 28,175 | Mar 30 | Nov 4 | 220 days | 7b |
| Yukon | 27,615 | Apr 2 | Nov 4 | 216 days | 7b |
| Ardmore | 24,956 | Mar 15 | Nov 14 | 244 days | 8a |
| Mustang | 24,571 | Apr 4 | Nov 2 | 213 days | 7b |
| Ponca City | 24,225 | Apr 10 | Oct 27 | 200 days | 7a |
| Sapulpa | 23,695 | Mar 30 | Nov 4 | 220 days | 7b |
| Duncan | 23,238 | Mar 25 | Nov 7 | 225 days | 8a |
| Durant | 21,552 | Mar 31 | Nov 5 | 221 days | 8a |
| Del City | 21,138 | Apr 2 | Nov 5 | 217 days | 7b |
| El Reno | 20,730 | Apr 6 | Oct 31 | 206 days | 7b |
| Claremore | 20,681 | Apr 7 | Oct 30 | 205 days | 7a |
| Sand Springs | 20,397 | Mar 30 | Nov 4 | 220 days | 7b |
| Bethany | 20,315 | Apr 2 | Nov 4 | 216 days | 7b |
| Altus | 18,707 | Apr 5 | Nov 2 | 210 days | 7b |
| McAlester | 18,044 | Mar 31 | Nov 3 | 216 days | 7b |
| Tahlequah | 17,508 | Apr 4 | Oct 31 | 209 days | 7b |
| Chickasha | 17,313 | Apr 4 | Nov 1 | 211 days | 7b |
| Ada | 16,660 | Apr 2 | Nov 4 | 217 days | 7b |
| Newcastle | 15,198 | Mar 31 | Nov 5 | 219 days | 7b |
| Glenpool | 14,705 | Mar 30 | Nov 4 | 220 days | 7b |
| Miami | 12,893 | Apr 6 | Oct 27 | 203 days | 7a |
| Choctaw | 12,549 | Apr 2 | Nov 5 | 217 days | 7b |
| Guthrie | 12,257 | Apr 3 | Nov 1 | 211 days | 7b |
| Guymon | 12,241 | Apr 18 | Oct 23 | 188 days | 6b |
| Weatherford | 12,005 | Apr 3 | Nov 3 | 214 days | 7b |
| Woodward | 11,635 | Apr 5 | Oct 30 | 206 days | 7a |
| Coweta | 11,472 | Apr 1 | Nov 1 | 212 days | 7b |
| Okmulgee | 11,394 | Apr 8 | Oct 28 | 203 days | 7b |
| Elk City | 11,335 | Apr 5 | Nov 2 | 208 days | 7b |
| Warr Acres | 10,552 | Apr 2 | Nov 4 | 216 days | 7b |
| Blanchard | 10,013 | Apr 3 | Nov 4 | 214 days | 7b |
| Collinsville | 9,956 | Mar 31 | Nov 4 | 220 days | 7a |
| Pryor Creek | 9,723 | Apr 5 | Oct 30 | 207 days | 7a |
| Piedmont | 9,427 | Apr 2 | Nov 4 | 216 days | 7b |
| The Village | 9,276 | Apr 2 | Nov 4 | 216 days | 7b |
| Poteau | 9,171 | Apr 6 | Nov 2 | 210 days | 7b |
| Skiatook | 8,960 | Mar 31 | Nov 4 | 220 days | 7b |
| Sallisaw | 8,790 | Mar 30 | Nov 7 | 223 days | 7b |
| Tuttle | 8,708 | Apr 4 | Nov 2 | 213 days | 7b |
| Wagoner | 8,405 | Mar 29 | Nov 5 | 223 days | 7b |
| Cushing | 8,390 | Apr 1 | Nov 5 | 217 days | 7b |
| Clinton | 8,302 | Apr 13 | Oct 28 | 197 days | 7b |
| Noble | 7,748 | Apr 3 | Nov 3 | 212 days | 7b |
| Catoosa | 7,471 | Mar 31 | Nov 4 | 220 days | 7b |
| Grove | 7,399 | Apr 16 | Oct 20 | 187 days | 7a |
| Seminole | 7,393 | Apr 5 | Nov 1 | 210 days | 7b |
| Harrah | 7,212 | Apr 2 | Nov 5 | 217 days | 7b |
| Purcell | 7,030 | Apr 4 | Nov 2 | 210 days | 7b |
| Idabel | 6,934 | Mar 31 | Nov 3 | 221 days | 8a |
| Tecumseh | 6,402 | Mar 30 | Nov 5 | 221 days | 7b |
| Pauls Valley | 6,157 | Mar 28 | Nov 7 | 223 days | 7b |
| Blackwell | 6,029 | Apr 12 | Oct 29 | 199 days | 7a |
| Holdenville | 5,923 | Apr 6 | Oct 31 | 206 days | 7b |
| Verdigris | 5,888 | Apr 7 | Oct 30 | 205 days | 7a |
| Henryetta | 5,620 | Apr 8 | Oct 28 | 203 days | 7b |
| Anadarko | 5,448 | Apr 8 | Oct 30 | 202 days | 7b |
| Vinita | 5,424 | Apr 7 | Nov 2 | 209 days | 7a |
| Lone Grove | 5,244 | Mar 21 | Nov 8 | 231 days | 8a |
| Kingfisher | 5,201 | Apr 9 | Nov 1 | 204 days | 7b |
| Hugo | 5,082 | Mar 15 | Nov 15 | 244 days | 8a |