Gramling, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.5 °F (low) to 71.2 °F (high). Annual precipitation averages 54.4 Inches. Gramling 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 31.0 °F | 51.7 °F | 4.57 in. |
| February | 33.4 °F | 55.7 °F | 4.01 in. |
| March | 39.8 °F | 63.2 °F | 4.76 in. |
| April | 48.4 °F | 72.1 °F | 4.57 in. |
| May | 57.1 °F | 79.2 °F | 4.31 in. |
| June | 64.4 °F | 85.6 °F | 4.75 in. |
| July | 68.5 °F | 89.2 °F | 4.85 in. |
| August | 67.5 °F | 87.4 °F | 5.01 in. |
| September | 61.4 °F | 82.0 °F | 4.48 in. |
| October | 49.7 °F | 72.4 °F | 3.97 in. |
| November | 39.2 °F | 62.1 °F | 4.16 in. |
| December | 33.9 °F | 53.9 °F | 4.93 in. |
| Annual | 49.5 °F | 71.2 °F | 54.37 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 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 |