Hackleburg, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10 °C (low) to 21.7 °C (high). Annual precipitation averages 1589.3 Millimeters. Hackleburg is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.8 °C | 10.1 °C | 140.97 mm |
| February | 0.9 °C | 12.4 °C | 146.81 mm |
| March | 4.9 °C | 17.3 °C | 140.21 mm |
| April | 9.4 °C | 22.1 °C | 150.11 mm |
| May | 14.5 °C | 25.9 °C | 144.27 mm |
| June | 18.6 °C | 29.9 °C | 128.78 mm |
| July | 20.4 °C | 31.4 °C | 129.54 mm |
| August | 20 °C | 31.4 °C | 117.35 mm |
| September | 16.6 °C | 28.6 °C | 104.65 mm |
| October | 10.2 °C | 22.9 °C | 101.35 mm |
| November | 4.2 °C | 16.4 °C | 118.11 mm |
| December | 1.1 °C | 11.4 °C | 167.13 mm |
| Annual | 10 °C | 21.7 °C | 1589.28 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 |