McColl, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51 °F (low) to 73.6 °F (high). Annual precipitation averages 45.4 Inches. McColl is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 32.3 °F | 54.3 °F | 3.5 in. |
| February | 34.3 °F | 57.9 °F | 3.26 in. |
| March | 40.7 °F | 65.6 °F | 3.36 in. |
| April | 49.4 °F | 75.0 °F | 3.01 in. |
| May | 58.5 °F | 81.9 °F | 3.28 in. |
| June | 67.2 °F | 88.2 °F | 4.68 in. |
| July | 70.8 °F | 91.0 °F | 4.42 in. |
| August | 69.2 °F | 89.1 °F | 4.86 in. |
| September | 63.2 °F | 83.6 °F | 5.16 in. |
| October | 51.1 °F | 74.8 °F | 3.05 in. |
| November | 40.2 °F | 64.9 °F | 3.27 in. |
| December | 35.1 °F | 57.1 °F | 3.52 in. |
| Annual | 51 °F | 73.6 °F | 45.37 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |