Furman, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 54.1 °F (low) to 76.6 °F (high). Annual precipitation averages 49.4 Inches. Furman 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 | 36.4 °F | 60.0 °F | 3.89 in. |
| February | 38.9 °F | 63.4 °F | 3.64 in. |
| March | 45.0 °F | 70.3 °F | 3.65 in. |
| April | 52.3 °F | 77.1 °F | 3.28 in. |
| May | 60.8 °F | 83.8 °F | 3.31 in. |
| June | 68.4 °F | 89.1 °F | 5.84 in. |
| July | 71.7 °F | 91.6 °F | 5.4 in. |
| August | 71.2 °F | 90.0 °F | 5.86 in. |
| September | 66.3 °F | 85.5 °F | 4.5 in. |
| October | 55.3 °F | 77.8 °F | 3.32 in. |
| November | 44.4 °F | 68.8 °F | 2.88 in. |
| December | 38.9 °F | 62.0 °F | 3.87 in. |
| Annual | 54.1 °F | 76.6 °F | 49.44 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 |