Florida frost dates: I
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Immokalee | Jan 18 | Jan 11 | 358 d | 10a |
| Immokalee (Collier) | Jan 23 | Jan 11 | 353 d | 10a |
| Indialantic | Jan 20 | Jan 12 | 357 d | 10a |
| Indian Lake Estates | Jan 28 | Jan 8 | 345 d | 9b |
| Indian Rocks Beach | Jan 17 | Jan 14 | 362 d | 10b |
| Indiantown | Jan 26 | Jan 15 | 354 d | 10a |
| Inglis | Feb 28 | Dec 2 | 277 d | 9a |
| Intercession City | Jan 28 | Jan 6 | 343 d | 10a |
| Interlachen | Mar 1 | Dec 7 | 281 d | 9a |
| Inverness | Mar 3 | Dec 5 | 277 d | 9a |
| Islamorada | rare frost | 11b | ||
| Island Grove | Mar 1 | Dec 7 | 281 d | 9a |
| Istachatta | Feb 3 | Jan 3 | 334 d | 9a |