Alabama frost dates: B
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Baileyton | Apr 5 | Nov 1 | 210 d | 8a |
| Banks | Mar 10 | Nov 21 | 256 d | 8b |
| Bankston | Mar 20 | Nov 9 | 234 d | 8a |
| Bay Minette | Feb 28 | Nov 25 | 270 d | 9a |
| Bayou La Batre | Mar 13 | Nov 24 | 256 d | 9a |
| Bear Creek | Mar 29 | Nov 9 | 225 d | 7b |
| Beatrice | Mar 18 | Nov 11 | 238 d | 8b |
| Beaverton | Apr 4 | Nov 1 | 211 d | 7b |
| Belk | Mar 20 | Nov 9 | 234 d | 8a |
| Bellamy | Mar 20 | Nov 9 | 234 d | 8b |
| Belle Mina | Mar 31 | Nov 1 | 215 d | 8a |
| Bellwood | Mar 23 | Nov 7 | 229 d | 8b |
| Berry | Mar 20 | Nov 9 | 234 d | 8a |
| Bessemer | Mar 23 | Nov 10 | 232 d | 8a |
| Billingsley | Mar 24 | Nov 10 | 231 d | 8b |
| Birmingham | Mar 21 | Nov 11 | 235 d | 8a |
| Black | Mar 23 | Nov 7 | 229 d | 8b |
| Blountsville | Apr 6 | Oct 29 | 206 d | 8a |
| Boaz | Mar 31 | Nov 3 | 217 d | 8a |
| Boligee | Mar 19 | Nov 8 | 234 d | 8b |
| Bon Air | Mar 31 | Nov 2 | 216 d | 8a |
| Bon Secour | Mar 5 | Nov 23 | 263 d | 9a |
| Booth | Mar 13 | Nov 13 | 245 d | 8b |
| Boykin | Mar 18 | Nov 11 | 238 d | 8b |
| Brantley | Feb 28 | Nov 28 | 273 d | 8b |
| Bremen | Apr 6 | Oct 29 | 206 d | 8a |
| Brent | Apr 2 | Nov 2 | 214 d | 8a |
| Brewton | Mar 15 | Nov 15 | 245 d | 8b |
| Bridgeport | Apr 7 | Oct 31 | 207 d | 7b |
| Brierfield | Mar 12 | Nov 16 | 249 d | 8a |
| Brilliant | Apr 4 | Nov 1 | 211 d | 7b |
| Brooklyn | Mar 25 | Nov 9 | 229 d | 8b |
| Brookside | Mar 21 | Nov 11 | 235 d | 8a |
| Brookwood | Mar 20 | Nov 11 | 236 d | 8b |
| Brownsboro | Apr 4 | Oct 30 | 209 d | 8a |
| Brundidge | Mar 10 | Nov 21 | 256 d | 8b |
| Bryant | Apr 7 | Oct 31 | 207 d | 7b |
| Bucks | Feb 28 | Nov 25 | 270 d | 8b |
| Buhl | Mar 12 | Nov 15 | 248 d | 8b |
| Burnwell | Mar 30 | Nov 4 | 219 d | 8a |
| Butler | Mar 14 | Nov 16 | 247 d | 8b |
| Bynum | Mar 23 | Nov 9 | 231 d | 8a |