Mooresville, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.2 °C (low) to 22.2 °C (high). Annual precipitation averages 1436.4 Millimeters. Mooresville 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 | -0.2 °C | 10.4 °C | 135.64 mm |
| February | 1.3 °C | 12.8 °C | 134.62 mm |
| March | 5.1 °C | 17.7 °C | 132.08 mm |
| April | 9.6 °C | 22.4 °C | 132.33 mm |
| May | 14.7 °C | 26.7 °C | 115.32 mm |
| June | 19 °C | 30.6 °C | 110.24 mm |
| July | 20.8 °C | 31.9 °C | 118.11 mm |
| August | 20.1 °C | 31.9 °C | 100.08 mm |
| September | 16.6 °C | 29.3 °C | 101.35 mm |
| October | 10.1 °C | 23.5 °C | 92.71 mm |
| November | 4.2 °C | 16.9 °C | 111.25 mm |
| December | 1.1 °C | 11.9 °C | 152.65 mm |
| Annual | 10.2 °C | 22.2 °C | 1436.38 mm |
| 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 : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |