Walls, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.5 °F (low) to 71.5 °F (high). Annual precipitation averages 53.8 Inches. Walls is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 31.2 °F | 48.7 °F | 4.17 in. |
| February | 34.6 °F | 53.5 °F | 4.63 in. |
| March | 42.0 °F | 62.4 °F | 5.61 in. |
| April | 51.1 °F | 72.1 °F | 5.64 in. |
| May | 60.7 °F | 80.3 °F | 5.34 in. |
| June | 68.8 °F | 88.0 °F | 4.33 in. |
| July | 71.8 °F | 90.5 °F | 4.22 in. |
| August | 69.8 °F | 90.1 °F | 2.95 in. |
| September | 62.5 °F | 84.9 °F | 2.89 in. |
| October | 50.7 °F | 74.3 °F | 3.79 in. |
| November | 40.4 °F | 61.5 °F | 4.67 in. |
| December | 34.2 °F | 51.5 °F | 5.57 in. |
| Annual | 51.5 °F | 71.5 °F | 53.81 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| 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 |