Indiana frost dates: N
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Nabb | Apr 11 | Oct 31 | 203 d | 6b |
| Napoleon | Apr 15 | Oct 26 | 194 d | 6b |
| Nappanee | Apr 26 | Oct 21 | 178 d | 6a |
| Nashville | Apr 15 | Oct 26 | 194 d | 6b |
| Needham | Apr 20 | Oct 19 | 182 d | 6b |
| New Albany | Mar 31 | Nov 9 | 223 d | 7a |
| New Carlisle | May 1 | Oct 19 | 171 d | 6a |
| New Castle | Apr 27 | Oct 17 | 173 d | 6a |
| New Goshen | Apr 15 | Oct 19 | 187 d | 6a |
| New Harmony | Apr 7 | Oct 25 | 201 d | 7a |
| New Haven | Apr 27 | Oct 19 | 175 d | 6a |
| New Lisbon | Apr 27 | Oct 9 | 165 d | 6a |
| New Market | Apr 27 | Oct 12 | 168 d | 5b |
| New Middletown | Apr 19 | Oct 24 | 188 d | 7a |
| New Palestine | Apr 20 | Oct 21 | 184 d | 6a |
| New Paris | Apr 28 | Oct 19 | 174 d | 6a |
| New Point | Apr 15 | Oct 26 | 194 d | 6b |
| New Richmond | Apr 20 | Oct 20 | 183 d | 6a |
| New Ross | Apr 27 | Oct 12 | 168 d | 6a |
| New Salisbury | Mar 31 | Nov 9 | 223 d | 6b |
| New Trenton | Apr 20 | Oct 21 | 184 d | 6b |
| New Washington | Apr 11 | Oct 31 | 203 d | 6b |
| New Waverly | Apr 20 | Oct 23 | 186 d | 6a |
| Newberry | Apr 9 | Oct 25 | 199 d | 6b |
| Newburgh | Apr 12 | Oct 25 | 196 d | 7a |
| Newport | Apr 30 | Oct 12 | 165 d | 6a |
| Newtown | Apr 22 | Oct 17 | 178 d | 6a |
| Nineveh | Apr 20 | Oct 19 | 182 d | 6a |
| Noblesville | Apr 21 | Oct 21 | 183 d | 6a |
| Norman | Apr 20 | Oct 20 | 183 d | 6b |
| North Judson | Apr 26 | Oct 19 | 176 d | 5b |
| North Liberty | May 1 | Oct 13 | 165 d | 6a |
| North Manchester | Apr 26 | Oct 19 | 176 d | 6a |
| North Salem | Apr 23 | Oct 19 | 179 d | 6a |
| North Vernon | Apr 21 | Oct 21 | 183 d | 6b |
| North Webster | Apr 24 | Oct 24 | 183 d | 6a |
| Notre Dame | Apr 23 | Oct 23 | 183 d | 6a |