Jacksonville, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.7 °F (low) to 73 °F (high). Annual precipitation averages 54.3 Inches. Jacksonville 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 | 31.4 °F | 53.3 °F | 5.11 in. |
| February | 34.1 °F | 57.4 °F | 5.44 in. |
| March | 40.5 °F | 65.8 °F | 5.42 in. |
| April | 47.8 °F | 73.8 °F | 4.78 in. |
| May | 57.1 °F | 80.6 °F | 4.27 in. |
| June | 65.2 °F | 86.9 °F | 4.53 in. |
| July | 68.7 °F | 89.7 °F | 4.52 in. |
| August | 67.8 °F | 89.2 °F | 4.02 in. |
| September | 61.8 °F | 84.6 °F | 3.45 in. |
| October | 49.7 °F | 75.0 °F | 3.48 in. |
| November | 38.5 °F | 64.0 °F | 4.29 in. |
| December | 33.9 °F | 55.9 °F | 4.94 in. |
| Annual | 49.7 °F | 73 °F | 54.25 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 |