Brunson, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 53.8 °F (low) to 76.7 °F (high). Annual precipitation averages 48.7 Inches. Brunson is located in USDA Plant Hardiness Zone 8b. 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 | 36.2 °F | 59.6 °F | 3.83 in. |
| February | 38.7 °F | 63.1 °F | 3.67 in. |
| March | 44.6 °F | 70.2 °F | 3.81 in. |
| April | 52.0 °F | 77.5 °F | 3.05 in. |
| May | 60.5 °F | 84.2 °F | 3.23 in. |
| June | 68.2 °F | 89.6 °F | 5.81 in. |
| July | 71.5 °F | 92.0 °F | 5.47 in. |
| August | 71.0 °F | 90.4 °F | 5.82 in. |
| September | 65.9 °F | 85.8 °F | 4.3 in. |
| October | 54.7 °F | 78.1 °F | 3.07 in. |
| November | 44.1 °F | 68.6 °F | 2.94 in. |
| December | 38.6 °F | 61.7 °F | 3.66 in. |
| Annual | 53.8 °F | 76.7 °F | 48.66 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |