| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F |
| 2012 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 68b - Sequatchie Valley |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 35740 - Bridgeport, AL | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 29 | 31 | 38 | 45 | 54 | 63 | 67 | 66 | 60 | 46 | 38 | 31 | 47 |
| Avg Max Temp (°F) | 48 | 53 | 62 | 71 | 79 | 86 | 89 | 89 | 83 | 72 | 61 | 52 | 70 |
| Avg Precip (In.) | 5.64 | 4.93 | 6.25 | 3.89 | 4.19 | 4.15 | 4.65 | 3.39 | 4.75 | 3.32 | 4.72 | 4.99 | 54.87 |