Indiana frost dates: J
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Jamestown | Apr 23 | Oct 19 | 179 d | 6a |
| Jasonville | Apr 14 | Oct 26 | 195 d | 6a |
| Jasper | Apr 10 | Nov 1 | 205 d | 6b |
| Jeffersonville | Mar 31 | Nov 9 | 223 d | 7a |
| Jonesboro | Apr 26 | Oct 20 | 177 d | 6a |
| Jonesville | Apr 16 | Oct 21 | 188 d | 6b |