Boykin, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.9 °F (low) to 74.7 °F (high). Annual precipitation averages 46 Inches. Boykin 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 32.4 °F | 56.1 °F | 3.79 in. |
| February | 34.5 °F | 59.7 °F | 3.4 in. |
| March | 40.5 °F | 67.1 °F | 3.74 in. |
| April | 49.1 °F | 75.8 °F | 3.06 in. |
| May | 58.5 °F | 82.4 °F | 3.33 in. |
| June | 66.7 °F | 88.6 °F | 4.71 in. |
| July | 70.3 °F | 91.5 °F | 4.62 in. |
| August | 69.2 °F | 89.9 °F | 4.88 in. |
| September | 63.4 °F | 85.1 °F | 4.23 in. |
| October | 51.5 °F | 75.6 °F | 3.43 in. |
| November | 40.0 °F | 65.5 °F | 2.96 in. |
| December | 34.5 °F | 58.5 °F | 3.82 in. |
| Annual | 50.9 °F | 74.7 °F | 45.97 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |