Cowpens, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.2 °F (low) to 72 °F (high). Annual precipitation averages 50.1 Inches. Cowpens 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 | 30.9 °F | 52.1 °F | 4.28 in. |
| February | 33.3 °F | 56.1 °F | 3.75 in. |
| March | 39.6 °F | 64.0 °F | 4.69 in. |
| April | 47.7 °F | 73.2 °F | 4.28 in. |
| May | 56.5 °F | 80.3 °F | 3.79 in. |
| June | 64.7 °F | 86.6 °F | 4.46 in. |
| July | 68.2 °F | 90.3 °F | 4.14 in. |
| August | 67.0 °F | 88.1 °F | 4.63 in. |
| September | 61.3 °F | 83.0 °F | 4.11 in. |
| October | 49.2 °F | 73.5 °F | 3.67 in. |
| November | 38.7 °F | 62.7 °F | 3.78 in. |
| December | 33.5 °F | 54.6 °F | 4.53 in. |
| Annual | 49.2 °F | 72 °F | 50.11 in. |
| 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 : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |