Polkton, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10 °C (low) to 22.8 °C (high). Annual precipitation averages 1184.4 Millimeters. Polkton is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.6 °C | 12 °C | 97.03 mm |
| February | 0.7 °C | 14 °C | 81.28 mm |
| March | 4.2 °C | 18.3 °C | 100.08 mm |
| April | 9.2 °C | 23.3 °C | 89.41 mm |
| May | 14.3 °C | 27.2 °C | 82.3 mm |
| June | 18.9 °C | 31 °C | 112.27 mm |
| July | 21.1 °C | 32.7 °C | 116.84 mm |
| August | 20.3 °C | 31.7 °C | 117.35 mm |
| September | 16.8 °C | 28.7 °C | 119.63 mm |
| October | 9.8 °C | 23.5 °C | 88.65 mm |
| November | 3.9 °C | 17.9 °C | 85.85 mm |
| December | 1.1 °C | 13.4 °C | 93.73 mm |
| Annual | 10 °C | 22.8 °C | 1184.42 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |