Polkville, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9 °C (low) to 21.5 °C (high). Annual precipitation averages 1280.4 Millimeters. Polkville 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 | -1.5 °C | 10.3 °C | 107.19 mm |
| February | -0.1 °C | 12.6 °C | 87.38 mm |
| March | 3.6 °C | 16.8 °C | 115.32 mm |
| April | 8.3 °C | 21.9 °C | 114.05 mm |
| May | 13.2 °C | 25.9 °C | 103.63 mm |
| June | 17.6 °C | 29.8 °C | 114.05 mm |
| July | 19.7 °C | 31.6 °C | 118.11 mm |
| August | 19.1 °C | 30.6 °C | 118.11 mm |
| September | 15.7 °C | 27.6 °C | 104.14 mm |
| October | 8.9 °C | 22.3 °C | 90.68 mm |
| November | 3.1 °C | 16.5 °C | 94.74 mm |
| December | -0.1 °C | 11.7 °C | 113.03 mm |
| Annual | 9 °C | 21.5 °C | 1280.43 mm |
| 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 : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |