South Lead Hill, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.7 °F (low) to 69.2 °F (high). Annual precipitation averages 47.5 Inches. South Lead Hill is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 24.5 °F | 46.3 °F | 2.9 in. |
| February | 27.7 °F | 51.1 °F | 2.88 in. |
| March | 35.4 °F | 60.0 °F | 4.58 in. |
| April | 44.4 °F | 69.4 °F | 5.31 in. |
| May | 54.3 °F | 76.9 °F | 4.93 in. |
| June | 63.3 °F | 85.3 °F | 3.99 in. |
| July | 67.0 °F | 89.7 °F | 4.03 in. |
| August | 65.2 °F | 89.0 °F | 3.02 in. |
| September | 57.4 °F | 82.2 °F | 4.2 in. |
| October | 45.6 °F | 71.5 °F | 3.95 in. |
| November | 35.9 °F | 59.3 °F | 4.41 in. |
| December | 27.7 °F | 49.1 °F | 3.33 in. |
| Annual | 45.7 °F | 69.2 °F | 47.53 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |