Alabama frost dates: N
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Nanafalia | Mar 10 | Nov 21 | 256 d | 8b |
| Natural Bridge | Mar 29 | Nov 9 | 225 d | 7b |
| Nauvoo | Mar 30 | Nov 4 | 219 d | 8a |
| Needham | Mar 14 | Nov 16 | 247 d | 8b |
| New Brockton | Mar 9 | Nov 21 | 257 d | 8b |
| New Castle | Apr 4 | Nov 1 | 211 d | 8a |
| New Hope | Apr 4 | Oct 30 | 209 d | 8a |
| New Market | Apr 7 | Oct 28 | 204 d | 7b |
| Newbern | Mar 18 | Nov 12 | 239 d | 8b |
| Newton | Mar 1 | Nov 24 | 268 d | 8b |
| Newville | Mar 5 | Nov 24 | 264 d | 8b |
| Normal | Mar 24 | Nov 8 | 229 d | 8a |
| Northport | Mar 18 | Nov 10 | 237 d | 8b |
| Notasulga | Mar 13 | Nov 17 | 249 d | 8b |