Nebraska frost dates: R
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Ragan | Apr 24 | Oct 18 | 177 d | 6a |
| Randolph | Apr 30 | Oct 6 | 159 d | 5b |
| Ravenna | May 4 | Oct 3 | 152 d | 5b |
| Raymond | Apr 22 | Oct 16 | 177 d | 5b |
| Red Cloud | May 1 | Oct 5 | 157 d | 5b |
| Republican City | Apr 25 | Oct 14 | 172 d | 6a |
| Reynolds | Apr 25 | Oct 15 | 173 d | 6a |
| Rising City | Apr 29 | Oct 9 | 163 d | 5b |
| Riverdale | Apr 30 | Oct 10 | 163 d | 5b |
| Riverton | Apr 30 | Oct 8 | 161 d | 6a |
| Roca | Apr 22 | Oct 14 | 175 d | 6a |
| Rockville | May 4 | Oct 3 | 152 d | 5b |
| Rogers | Apr 25 | Oct 11 | 169 d | 5b |
| Rosalie | May 1 | Oct 6 | 158 d | 5a |
| Roseland | Apr 22 | Oct 16 | 177 d | 5b |
| Royal | Apr 30 | Oct 6 | 159 d | 5a |
| Rulo | Apr 18 | Oct 14 | 179 d | 6a |
| Rushville | May 13 | Sep 30 | 140 d | 5a |
| Ruskin | Apr 29 | Oct 10 | 164 d | 6a |