Bon Air, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.3 °F (low) to 75.4 °F (high). Annual precipitation averages 56.3 Inches. Bon Air is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 32.6 °F | 55.8 °F | 5.29 in. |
| February | 35.5 °F | 60.4 °F | 5.6 in. |
| March | 41.5 °F | 68.3 °F | 5.35 in. |
| April | 48.5 °F | 76.2 °F | 4.92 in. |
| May | 57.5 °F | 83.0 °F | 4.47 in. |
| June | 65.5 °F | 88.8 °F | 4.87 in. |
| July | 68.9 °F | 91.8 °F | 4.51 in. |
| August | 68.0 °F | 91.1 °F | 4.25 in. |
| September | 62.1 °F | 86.9 °F | 3.83 in. |
| October | 49.8 °F | 77.5 °F | 3.3 in. |
| November | 39.2 °F | 66.3 °F | 4.63 in. |
| December | 34.9 °F | 58.3 °F | 5.24 in. |
| Annual | 50.3 °F | 75.4 °F | 56.26 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |