Nanafalia, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 52.5 °F (low) to 76.3 °F (high). Annual precipitation averages 57.4 Inches. Nanafalia 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 | 34.6 °F | 57.5 °F | 5.57 in. |
| February | 37.9 °F | 61.8 °F | 5.44 in. |
| March | 44.1 °F | 69.7 °F | 5.87 in. |
| April | 50.9 °F | 76.8 °F | 4.66 in. |
| May | 59.7 °F | 84.0 °F | 4.23 in. |
| June | 67.7 °F | 89.4 °F | 4.66 in. |
| July | 70.5 °F | 91.8 °F | 5.57 in. |
| August | 69.7 °F | 91.3 °F | 4.8 in. |
| September | 64.2 °F | 87.2 °F | 3.64 in. |
| October | 52.3 °F | 78.2 °F | 3.42 in. |
| November | 41.4 °F | 67.4 °F | 4.38 in. |
| December | 36.9 °F | 59.9 °F | 5.16 in. |
| Annual | 52.5 °F | 76.3 °F | 57.4 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |