Walhalla, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.2 °F (low) to 72.2 °F (high). Annual precipitation averages 60.8 Inches. Walhalla is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 31.0 °F | 52.9 °F | 5.37 in. |
| February | 33.4 °F | 56.7 °F | 4.8 in. |
| March | 39.5 °F | 64.2 °F | 5.26 in. |
| April | 47.4 °F | 73.3 °F | 4.65 in. |
| May | 56.3 °F | 80.1 °F | 4.53 in. |
| June | 64.5 °F | 86.4 °F | 5.23 in. |
| July | 68.0 °F | 89.6 °F | 5.0 in. |
| August | 67.3 °F | 88.2 °F | 6.37 in. |
| September | 61.5 °F | 83.0 °F | 4.77 in. |
| October | 49.3 °F | 73.3 °F | 4.56 in. |
| November | 39.0 °F | 63.5 °F | 4.49 in. |
| December | 33.7 °F | 55.2 °F | 5.75 in. |
| Annual | 49.2 °F | 72.2 °F | 60.78 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |