Gaffney, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48.7 °F (low) to 71.7 °F (high). Annual precipitation averages 48.1 Inches. Gaffney 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 | 30.1 °F | 51.8 °F | 4.14 in. |
| February | 32.6 °F | 55.9 °F | 3.52 in. |
| March | 38.9 °F | 63.6 °F | 4.66 in. |
| April | 47.1 °F | 72.6 °F | 4.08 in. |
| May | 56.1 °F | 79.7 °F | 3.66 in. |
| June | 64.4 °F | 86.2 °F | 4.29 in. |
| July | 68.0 °F | 89.6 °F | 4.09 in. |
| August | 67.0 °F | 87.8 °F | 4.55 in. |
| September | 60.9 °F | 82.7 °F | 3.88 in. |
| October | 48.5 °F | 73.1 °F | 3.35 in. |
| November | 37.8 °F | 62.5 °F | 3.57 in. |
| December | 32.8 °F | 54.3 °F | 4.3 in. |
| Annual | 48.7 °F | 71.7 °F | 48.09 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 |