Natural Bridge, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.4 °F (low) to 71.7 °F (high). Annual precipitation averages 62.7 Inches. Natural Bridge is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 29.9 °F | 51.0 °F | 5.81 in. |
| February | 33.3 °F | 55.4 °F | 5.91 in. |
| March | 40.1 °F | 64.0 °F | 5.65 in. |
| April | 48.1 °F | 72.5 °F | 5.93 in. |
| May | 57.4 °F | 79.5 °F | 5.39 in. |
| June | 65.1 °F | 86.2 °F | 5.14 in. |
| July | 68.4 °F | 89.1 °F | 5.08 in. |
| August | 67.7 °F | 89.0 °F | 4.58 in. |
| September | 61.3 °F | 84.2 °F | 4.27 in. |
| October | 49.3 °F | 74.0 °F | 3.99 in. |
| November | 38.5 °F | 62.4 °F | 4.65 in. |
| December | 33.3 °F | 53.5 °F | 6.31 in. |
| Annual | 49.4 °F | 71.7 °F | 62.71 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |