Mississippi frost dates: R
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Raleigh | Mar 28 | Nov 3 | 220 d | 8b |
| Randolph | Mar 28 | Nov 8 | 225 d | 8a |
| Raymond | Mar 16 | Nov 6 | 235 d | 8b |
| Red Banks | Apr 6 | Oct 28 | 205 d | 7b |
| Redwood | Feb 26 | Nov 22 | 269 d | 8b |
| Rena Lara | Mar 16 | Nov 12 | 241 d | 8b |
| Richland | Mar 14 | Nov 14 | 245 d | 8b |
| Richton | Mar 18 | Nov 12 | 239 d | 8b |
| Ridgeland | Mar 14 | Nov 14 | 245 d | 8b |
| Rienzi | Apr 2 | Nov 1 | 213 d | 8a |
| Ripley | Apr 3 | Oct 30 | 210 d | 7b |
| Robinsonville | Mar 14 | Nov 15 | 246 d | 8a |
| Rolling Fork | Mar 5 | Nov 20 | 260 d | 8b |
| Rome | Mar 16 | Nov 12 | 241 d | 8b |
| Rose Hill | Mar 24 | Nov 5 | 226 d | 8b |
| Rosedale | Mar 14 | Nov 15 | 246 d | 8b |
| Roxie | Mar 15 | Nov 12 | 242 d | 8b |
| Ruleville | Mar 15 | Nov 11 | 241 d | 8b |
| Ruth | Mar 17 | Nov 12 | 240 d | 8b |