Trussville, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.2 °F (low) to 73.3 °F (high). Annual precipitation averages 59 Inches. Trussville 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 32.5 °F | 53.6 °F | 5.36 in. |
| February | 35.3 °F | 58.0 °F | 5.35 in. |
| March | 42.0 °F | 66.3 °F | 5.72 in. |
| April | 49.5 °F | 74.1 °F | 5.27 in. |
| May | 58.8 °F | 80.9 °F | 4.82 in. |
| June | 66.7 °F | 87.0 °F | 5.03 in. |
| July | 70.0 °F | 90.0 °F | 5.17 in. |
| August | 69.1 °F | 89.5 °F | 4.34 in. |
| September | 63.2 °F | 85.0 °F | 4.45 in. |
| October | 51.5 °F | 75.0 °F | 3.62 in. |
| November | 40.7 °F | 64.3 °F | 4.65 in. |
| December | 35.3 °F | 56.0 °F | 5.23 in. |
| Annual | 51.2 °F | 73.3 °F | 59.01 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| 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 |