Benton, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 53.8 °F (low) to 76 °F (high). Annual precipitation averages 54.8 Inches. Benton is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 35.5 °F | 57.2 °F | 5.14 in. |
| February | 39.0 °F | 61.7 °F | 5.32 in. |
| March | 44.9 °F | 69.5 °F | 5.78 in. |
| April | 51.8 °F | 76.4 °F | 4.3 in. |
| May | 61.3 °F | 83.9 °F | 3.7 in. |
| June | 69.4 °F | 89.3 °F | 4.3 in. |
| July | 71.7 °F | 91.4 °F | 5.42 in. |
| August | 71.1 °F | 91.2 °F | 4.26 in. |
| September | 65.9 °F | 86.8 °F | 4.28 in. |
| October | 53.9 °F | 77.8 °F | 2.83 in. |
| November | 42.6 °F | 67.2 °F | 4.2 in. |
| December | 37.9 °F | 59.5 °F | 5.23 in. |
| Annual | 53.8 °F | 76 °F | 54.76 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |