Alabama frost dates by city
| City | Last frost (50%) | Safer date (10%) | First frost (50%) | Season |
|---|---|---|---|---|
| Birmingham | Mar 21 | Apr 8 | Nov 11 | 236 days |
| Huntsville | Mar 24 | Apr 8 | Nov 8 | 229 days |
| Montgomery | Mar 13 | Mar 31 | Nov 13 | 244 days |
Each city uses its nearest major NOAA weather station, usually the airport. Valleys, hilltops and rural spots can differ from it by one to three weeks. How to read these dates.