McConnells, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.2 °F (low) to 72 °F (high). Annual precipitation averages 44.5 Inches. McConnells 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 31.1 °F | 52.3 °F | 3.86 in. |
| February | 33.8 °F | 56.2 °F | 3.31 in. |
| March | 40.2 °F | 63.9 °F | 4.12 in. |
| April | 48.8 °F | 73.0 °F | 3.69 in. |
| May | 57.9 °F | 80.0 °F | 3.39 in. |
| June | 66.1 °F | 86.8 °F | 4.1 in. |
| July | 69.7 °F | 90.0 °F | 3.7 in. |
| August | 68.5 °F | 88.2 °F | 4.17 in. |
| September | 62.5 °F | 82.9 °F | 3.77 in. |
| October | 50.2 °F | 73.0 °F | 3.11 in. |
| November | 39.2 °F | 62.9 °F | 3.36 in. |
| December | 33.8 °F | 54.8 °F | 3.89 in. |
| Annual | 50.2 °F | 72 °F | 44.47 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |