Louisville, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 53.5 °F (low) to 76.2 °F (high). Annual precipitation averages 56.1 Inches. Louisville is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 36.0 °F | 58.6 °F | 4.75 in. |
| February | 39.3 °F | 62.5 °F | 4.8 in. |
| March | 44.9 °F | 69.8 °F | 5.55 in. |
| April | 51.3 °F | 76.6 °F | 4.39 in. |
| May | 60.4 °F | 83.9 °F | 3.59 in. |
| June | 67.5 °F | 88.9 °F | 5.86 in. |
| July | 70.3 °F | 91.0 °F | 5.96 in. |
| August | 69.5 °F | 90.3 °F | 4.74 in. |
| September | 64.9 °F | 86.3 °F | 3.8 in. |
| October | 54.6 °F | 78.1 °F | 3.14 in. |
| November | 44.0 °F | 68.1 °F | 4.14 in. |
| December | 38.9 °F | 60.7 °F | 5.35 in. |
| Annual | 53.5 °F | 76.2 °F | 56.07 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |