| City | Population | Last spring frost | First fall frost | Growing season | Zone |
|---|---|---|---|---|---|
| New Orleans | 362,154 | Jan 22 | Jan 5 | 348 days | 9b |
| Baton Rouge | 222,795 | Feb 28 | Nov 26 | 272 days | 9a |
| Shreveport | 175,902 | Mar 9 | Nov 18 | 255 days | 8b |
| Lafayette | 123,311 | Feb 26 | Nov 28 | 279 days | 9a |
| Lake Charles | 82,676 | Feb 14 | Dec 7 | 299 days | 9a |
| St. George | 78,536 | Feb 28 | Nov 26 | 272 days | 9a |
| Kenner | 65,136 | Jan 30 | Dec 31 | 333 days | 9b |
| Bossier City | 63,259 | Feb 28 | Nov 24 | 268 days | 8b |
| Monroe | 46,860 | Mar 8 | Nov 15 | 253 days | 8b |
| Alexandria | 42,938 | Feb 27 | Nov 27 | 274 days | 9a |
| Houma | 31,735 | Feb 5 | Dec 17 | 312 days | 9b |
| Central | 30,313 | Feb 25 | Nov 26 | 276 days | 9a |
| Slidell | 28,341 | Feb 24 | Dec 1 | 281 days | 9a |
| New Iberia | 26,533 | Feb 10 | Dec 11 | 305 days | 9b |
| Hammond | 24,032 | Mar 8 | Nov 19 | 257 days | 9a |
| Ruston | 22,397 | Mar 11 | Nov 16 | 248 days | 8b |
| Zachary | 20,621 | Feb 25 | Nov 26 | 276 days | 9a |
| Sulphur | 20,492 | Feb 14 | Dec 7 | 299 days | 9a |
| Youngsville | 19,980 | Feb 19 | Dec 1 | 289 days | 9a |
| Gretna | 17,360 | Feb 1 | Dec 31 | 330 days | 9b |
| Natchitoches | 17,146 | Feb 28 | Dec 1 | 275 days | 9a |
| Broussard | 15,799 | Feb 13 | Dec 4 | 299 days | 9a |
| Thibodaux | 15,573 | Feb 5 | Dec 14 | 311 days | 9b |
| Opelousas | 15,098 | Feb 28 | Nov 23 | 267 days | 9a |
| Pineville | 13,967 | Feb 27 | Nov 27 | 274 days | 9a |
| Gonzales | 13,930 | Feb 21 | Dec 5 | 291 days | 9a |
| Carencro | 13,224 | Feb 26 | Nov 28 | 279 days | 9a |
| Mandeville | 12,918 | Mar 12 | Nov 18 | 253 days | 9a |
| West Monroe | 12,478 | Mar 8 | Nov 15 | 253 days | 8b |
| Baker | 12,136 | Feb 25 | Nov 26 | 276 days | 9a |
| Covington | 11,721 | Mar 12 | Nov 18 | 253 days | 9a |
| Crowley | 11,223 | Feb 20 | Dec 4 | 291 days | 9a |
| Minden | 11,103 | Mar 17 | Nov 14 | 241 days | 8b |
| Abbeville | 10,861 | Feb 17 | Dec 5 | 298 days | 9a |
| Morgan City | 10,757 | Jan 30 | Jan 1 | 335 days | 9b |
| Bogalusa | 10,321 | Mar 2 | Nov 23 | 265 days | 9a |
| Scott | 9,635 | Feb 26 | Nov 28 | 279 days | 9a |
| DeRidder | 9,503 | Mar 1 | Nov 25 | 269 days | 9a |
| Denham Springs | 9,378 | Feb 25 | Nov 26 | 276 days | 9a |
| Jennings | 9,235 | Feb 19 | Dec 4 | 292 days | 9a |
| Eunice | 9,035 | Feb 26 | Nov 27 | 276 days | 9a |
| Harahan | 8,916 | Jan 24 | Jan 2 | 341 days | 9b |
| Bastrop | 8,908 | Mar 15 | Nov 12 | 241 days | 8b |
| Westwego | 8,317 | Jan 24 | Jan 2 | 341 days | 9b |
| Ponchatoula | 7,755 | Mar 8 | Nov 19 | 257 days | 9a |
| Addis | 7,679 | Feb 28 | Nov 24 | 268 days | 9a |
| Breaux Bridge | 7,652 | Feb 13 | Dec 4 | 299 days | 9a |
| Donaldsonville | 7,094 | Feb 21 | Dec 5 | 291 days | 9a |
| Rayne | 6,995 | Feb 20 | Dec 4 | 291 days | 9a |
| St. Gabriel | 6,987 | Feb 9 | Dec 13 | 308 days | 9a |
| Oakdale | 6,526 | Mar 3 | Nov 25 | 268 days | 9a |
| Walker | 6,476 | Feb 25 | Nov 26 | 276 days | 9a |
| Franklin | 6,224 | Feb 11 | Dec 8 | 303 days | 9b |
| Ville Platte | 6,172 | Feb 26 | Nov 27 | 276 days | 9a |
| Plaquemine | 5,891 | Feb 28 | Nov 26 | 272 days | 9a |
| Patterson | 5,565 | Jan 30 | Jan 1 | 335 days | 9b |
| Tallulah | 5,517 | Mar 2 | Nov 24 | 271 days | 8b |
| Grambling | 5,314 | Mar 11 | Nov 16 | 248 days | 8b |
| St. Martinville | 5,229 | Feb 19 | Dec 1 | 289 days | 9a |
| Leesville | 5,210 | Mar 20 | Nov 9 | 234 days | 9a |
| Port Allen | 5,015 | Feb 28 | Nov 24 | 268 days | 9a |