Indiana frost dates: P
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Palmyra | Apr 17 | Oct 22 | 188 d | 6b |
| Paoli | Apr 21 | Oct 18 | 180 d | 6b |
| Paragon | Apr 24 | Oct 15 | 174 d | 6a |
| Paris Crossing | Apr 18 | Oct 20 | 185 d | 6b |
| Parker City | Apr 25 | Oct 16 | 174 d | 6a |
| Patoka | Apr 13 | Oct 25 | 195 d | 6b |
| Patricksburg | Apr 20 | Oct 20 | 183 d | 6a |
| Patriot | Apr 23 | Oct 21 | 181 d | 6b |
| Paxton | Apr 9 | Oct 30 | 204 d | 6b |
| Pekin | Apr 17 | Oct 22 | 188 d | 6b |
| Pendleton | Apr 19 | Oct 23 | 187 d | 6a |
| Pennville | Apr 22 | Oct 22 | 183 d | 6a |
| Perrysville | Apr 23 | Oct 14 | 174 d | 6a |
| Pershing | Apr 27 | Oct 9 | 165 d | 6a |
| Peru | Apr 23 | Oct 21 | 181 d | 6a |
| Petersburg | Apr 20 | Oct 22 | 185 d | 6b |
| Petroleum | Apr 23 | Oct 22 | 182 d | 6a |
| Pierceton | Apr 28 | Oct 18 | 173 d | 6a |
| Pierceville | Apr 30 | Oct 16 | 169 d | 6b |
| Pimento | Apr 8 | Oct 27 | 202 d | 6a |
| Pine Village | Apr 22 | Oct 17 | 178 d | 6a |
| Pittsboro | Apr 23 | Oct 19 | 179 d | 6a |
| Plainfield | Apr 12 | Oct 27 | 198 d | 6a |
| Plainville | Apr 9 | Oct 25 | 199 d | 6b |
| Pleasant Lake | Apr 30 | Oct 16 | 169 d | 6a |
| Pleasant Mills | Apr 23 | Oct 19 | 179 d | 6a |
| Plymouth | Apr 25 | Oct 21 | 179 d | 6a |
| Poland | Apr 27 | Oct 15 | 171 d | 6a |
| Poneto | Apr 24 | Oct 20 | 179 d | 6a |
| Portage | Apr 22 | Oct 27 | 188 d | 6a |
| Portland | Apr 28 | Oct 15 | 170 d | 6a |
| Poseyville | Apr 7 | Oct 25 | 201 d | 7a |
| Prairie Creek | Apr 8 | Oct 27 | 202 d | 6b |
| Prairieton | Apr 15 | Oct 19 | 187 d | 6b |
| Preble | Apr 23 | Oct 19 | 179 d | 6a |
| Princeton | Apr 13 | Oct 25 | 195 d | 6b |
| Putnamville | Apr 27 | Oct 15 | 171 d | 6a |