North Carolina frost dates: R
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Raeford | Apr 3 | Nov 3 | 214 d | 8a |
| Raleigh | Mar 28 | Nov 8 | 225 d | 8a |
| Ramseur | Apr 5 | Oct 31 | 209 d | 8a |
| Randleman | Mar 29 | Nov 6 | 222 d | 8a |
| Red Oak | Apr 1 | Nov 5 | 218 d | 8a |
| Red Springs | Mar 25 | Nov 8 | 228 d | 8a |
| Reidsville | Apr 5 | Nov 2 | 211 d | 8a |
| Rex | Apr 3 | Nov 3 | 214 d | 8b |
| Rhodhiss | Mar 31 | Nov 4 | 218 d | 8a |
| Rich Square | Apr 5 | Nov 1 | 210 d | 8a |
| Richfield | Mar 29 | Nov 4 | 220 d | 8a |
| Richlands | Apr 5 | Nov 4 | 213 d | 8a |
| Ridgecrest | Apr 19 | Oct 23 | 187 d | 7a |
| Ridgeway | Mar 28 | Nov 9 | 226 d | 7b |
| Riegelwood | Mar 27 | Nov 8 | 226 d | 8b |
| Roanoke Rapids | Mar 27 | Nov 12 | 230 d | 8a |
| Roaring Gap | Apr 22 | Oct 22 | 183 d | 7a |
| Roaring River | Apr 15 | Oct 26 | 194 d | 7b |
| Robbins | Apr 1 | Nov 5 | 218 d | 8a |
| Robbinsville | Apr 13 | Oct 26 | 196 d | 7a |
| Robersonville | Mar 20 | Nov 12 | 237 d | 8a |
| Rockingham | Mar 30 | Nov 4 | 219 d | 8a |
| Rockwell | Apr 6 | Oct 30 | 207 d | 7b |
| Rocky Mount | Mar 31 | Nov 7 | 221 d | 8a |
| Rocky Point | Mar 29 | Nov 8 | 224 d | 8a |
| Rodanthe | Mar 1 | Dec 20 | 294 d | 9a |
| Roduco | Apr 6 | Nov 1 | 209 d | 8a |
| Rolesville | Apr 4 | Nov 4 | 214 d | 8a |
| Ronda | Apr 15 | Oct 26 | 194 d | 7b |
| Roper | Mar 31 | Nov 7 | 221 d | 8b |
| Rose Hill | Apr 1 | Nov 7 | 220 d | 8a |
| Roseboro | Mar 26 | Nov 7 | 226 d | 8b |
| Rosman | Apr 21 | Oct 23 | 185 d | 7b |
| Rougemont | Apr 15 | Oct 26 | 194 d | 7b |
| Rowland | Mar 24 | Nov 10 | 231 d | 8b |
| Roxboro | Apr 15 | Oct 26 | 194 d | 7b |
| Roxobel | Mar 29 | Nov 7 | 223 d | 8a |
| Ruffin | Apr 5 | Nov 2 | 211 d | 7b |
| Rural Hall | Apr 6 | Oct 31 | 208 d | 7b |
| Rutherford College | Mar 31 | Nov 4 | 218 d | 8a |
| Rutherfordton | Apr 11 | Oct 27 | 199 d | 8a |