Hickory Grove, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.7 °C (low) to 22.2 °C (high). Annual precipitation averages 1119.4 Millimeters. Hickory Grove is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.8 °C | 11.3 °C | 96.52 mm |
| February | 0.6 °C | 13.4 °C | 83.06 mm |
| March | 4.1 °C | 17.8 °C | 106.43 mm |
| April | 8.8 °C | 22.7 °C | 96.01 mm |
| May | 13.9 °C | 26.6 °C | 86.36 mm |
| June | 18.5 °C | 30.3 °C | 100.08 mm |
| July | 20.6 °C | 32.2 °C | 89.66 mm |
| August | 19.9 °C | 31.2 °C | 104.39 mm |
| September | 16.5 °C | 28.2 °C | 93.22 mm |
| October | 9.6 °C | 22.8 °C | 79.25 mm |
| November | 3.6 °C | 17.1 °C | 85.6 mm |
| December | 0.6 °C | 12.6 °C | 98.81 mm |
| Annual | 9.7 °C | 22.2 °C | 1119.39 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |