Nebraska frost dates: N
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Naper | May 3 | Oct 10 | 160 d | 5a |
| Naponee | Apr 25 | Oct 14 | 172 d | 6a |
| Nebraska City | Apr 18 | Oct 19 | 184 d | 6a |
| Nehawka | Apr 23 | Oct 16 | 176 d | 5b |
| Neligh | May 4 | Oct 4 | 153 d | 5a |
| Nelson | Apr 29 | Oct 10 | 164 d | 6a |
| Nemaha | Apr 24 | Oct 10 | 169 d | 5b |
| Nenzel | May 10 | Sep 29 | 142 d | 5a |
| Newcastle | May 3 | Oct 3 | 153 d | 5a |
| Newman Grove | May 1 | Oct 5 | 157 d | 5b |
| Newport | May 6 | Oct 1 | 148 d | 5a |
| Nickerson | Apr 23 | Oct 15 | 175 d | 5b |
| Niobrara | Apr 25 | Oct 13 | 171 d | 5a |
| Norfolk | Apr 30 | Oct 5 | 158 d | 5a |
| North Bend | Apr 23 | Oct 15 | 175 d | 5b |
| North Loup | May 5 | Oct 3 | 151 d | 5b |
| North Platte | May 3 | Oct 10 | 160 d | 5b |