Florida frost dates: B
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Babson Park | Feb 4 | Jan 4 | 334 d | 10a |
| Bagdad | Feb 28 | Nov 27 | 272 d | 9a |
| Baker | Mar 21 | Nov 12 | 236 d | 8b |
| Balm | Jan 20 | Jan 9 | 354 d | 9b |
| Barberville | Feb 17 | Dec 30 | 316 d | 9b |
| Bartow | Jan 24 | Jan 7 | 348 d | 10a |
| Bascom | Mar 1 | Nov 27 | 271 d | 9a |
| Bay Pines | Jan 17 | Jan 14 | 362 d | 10b |
| Bell | Mar 14 | Nov 22 | 253 d | 9a |
| Belle Glade | Jan 27 | Jan 16 | 354 d | 10a |
| Belleair Beach | Jan 17 | Jan 14 | 362 d | 10b |
| Belleview | Feb 25 | Dec 12 | 290 d | 9b |
| Beverly Hills | Mar 3 | Dec 5 | 277 d | 9a |
| Big Pine Key | rare frost | 11b | ||
| Blountstown | Mar 1 | Nov 29 | 273 d | 9a |
| Boca Grande | Jan 21 | Jan 14 | 358 d | 10b |
| Boca Raton | rare frost | 10b | ||
| Bokeelia | Jan 16 | Jan 13 | 362 d | 10b |
| Bonifay | Mar 5 | Nov 18 | 258 d | 8b |
| Bonita Springs | Jan 17 | Jan 16 | 364 d | 10b |
| Bostwick | Jan 31 | Jan 4 | 338 d | 9b |
| Bowling Green | Feb 4 | Jan 8 | 338 d | 9b |
| Boynton Beach | Jan 22 | Jan 17 | 360 d | 10b |
| Bradenton | Jan 16 | Jan 11 | 360 d | 10a |
| Bradenton Beach | Jan 15 | Jan 10 | 360 d | 10b |
| Bradley | Feb 4 | Jan 8 | 338 d | 10a |
| Brandon | Jan 30 | Jan 6 | 341 d | 9b |
| Branford | Mar 14 | Nov 22 | 253 d | 9a |
| Bristol | Mar 13 | Nov 22 | 254 d | 9a |
| Bronson | Feb 28 | Dec 2 | 277 d | 9a |
| Brooker | Feb 8 | Dec 24 | 319 d | 9a |
| Brooksville | Mar 1 | Dec 5 | 279 d | 9b |
| Bryceville | Feb 28 | Dec 3 | 278 d | 9a |
| Bunnell | Feb 1 | Jan 8 | 341 d | 9b |
| Bushnell | Mar 2 | Dec 5 | 278 d | 9a |