Furman, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.3 °C (low) to 24.8 °C (high). Annual precipitation averages 1255.8 Millimeters. 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 | 2.4 °C | 15.6 °C | 98.81 mm |
| February | 3.8 °C | 17.4 °C | 92.46 mm |
| March | 7.2 °C | 21.3 °C | 92.71 mm |
| April | 11.3 °C | 25.1 °C | 83.31 mm |
| May | 16 °C | 28.8 °C | 84.07 mm |
| June | 20.2 °C | 31.7 °C | 148.34 mm |
| July | 22.1 °C | 33.1 °C | 137.16 mm |
| August | 21.8 °C | 32.2 °C | 148.84 mm |
| September | 19.1 °C | 29.7 °C | 114.3 mm |
| October | 12.9 °C | 25.4 °C | 84.33 mm |
| November | 6.9 °C | 20.4 °C | 73.15 mm |
| December | 3.8 °C | 16.7 °C | 98.3 mm |
| Annual | 12.3 °C | 24.8 °C | 1255.78 mm |
| 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 : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |