Anderson, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.4 °C (low) to 22.5 °C (high). Annual precipitation averages 1273.8 Millimeters. Anderson 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 | 0.1 °C | 11.7 °C | 114.55 mm |
| February | 1.6 °C | 13.8 °C | 109.47 mm |
| March | 4.9 °C | 18.1 °C | 120.65 mm |
| April | 9.4 °C | 22.9 °C | 102.87 mm |
| May | 14.4 °C | 26.8 °C | 95.25 mm |
| June | 18.9 °C | 30.6 °C | 103.89 mm |
| July | 20.8 °C | 32.5 °C | 102.62 mm |
| August | 20.4 °C | 31.5 °C | 116.84 mm |
| September | 17.2 °C | 28.5 °C | 90.93 mm |
| October | 10.6 °C | 23.2 °C | 86.11 mm |
| November | 4.6 °C | 17.4 °C | 104.14 mm |
| December | 1.6 °C | 13 °C | 126.49 mm |
| Annual | 10.4 °C | 22.5 °C | 1273.81 mm |
| 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 : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |