Powellsville, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.6 °F (low) to 71 °F (high). Annual precipitation averages 50.3 Inches. Powellsville 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. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 30.7 °F | 51.3 °F | 3.71 in. |
| February | 32.5 °F | 54.5 °F | 3.03 in. |
| March | 38.6 °F | 61.6 °F | 4.08 in. |
| April | 48.2 °F | 71.6 °F | 3.56 in. |
| May | 57.1 °F | 78.3 °F | 3.74 in. |
| June | 65.3 °F | 85.7 °F | 4.92 in. |
| July | 69.3 °F | 88.9 °F | 5.51 in. |
| August | 67.8 °F | 87.4 °F | 5.41 in. |
| September | 62.1 °F | 82.0 °F | 5.88 in. |
| October | 49.9 °F | 72.7 °F | 3.77 in. |
| November | 39.4 °F | 62.8 °F | 3.29 in. |
| December | 33.7 °F | 54.7 °F | 3.44 in. |
| Annual | 49.6 °F | 71 °F | 50.34 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| 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 |