Attalla, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.3 °F (low) to 72.5 °F (high). Annual precipitation averages 57.8 Inches. Attalla is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 31.4 °F | 51.7 °F | 5.59 in. |
| February | 34.4 °F | 56.2 °F | 5.45 in. |
| March | 40.9 °F | 64.6 °F | 5.59 in. |
| April | 48.6 °F | 73.3 °F | 5.21 in. |
| May | 57.8 °F | 80.5 °F | 4.58 in. |
| June | 66.2 °F | 87.0 °F | 4.98 in. |
| July | 69.5 °F | 89.9 °F | 4.59 in. |
| August | 68.6 °F | 89.5 °F | 4.09 in. |
| September | 62.5 °F | 84.6 °F | 4.06 in. |
| October | 50.5 °F | 74.7 °F | 3.49 in. |
| November | 39.0 °F | 63.0 °F | 4.57 in. |
| December | 34.0 °F | 54.7 °F | 5.61 in. |
| Annual | 50.3 °F | 72.5 °F | 57.81 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| 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 |