Bolton, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.9 °C (low) to 23.3 °C (high). Annual precipitation averages 1360.4 Millimeters. Bolton is located in USDA Plant Hardiness Zone 8b. 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 | 0.7 °C | 13.7 °C | 95 mm |
| February | 1.7 °C | 15.2 °C | 85.85 mm |
| March | 5 °C | 19.2 °C | 98.3 mm |
| April | 9.9 °C | 23.5 °C | 88.65 mm |
| May | 14.8 °C | 27.1 °C | 100.33 mm |
| June | 19.5 °C | 30.5 °C | 133.35 mm |
| July | 21.7 °C | 32.2 °C | 145.8 mm |
| August | 20.8 °C | 31.3 °C | 159.51 mm |
| September | 17.9 °C | 28.7 °C | 175.01 mm |
| October | 11.3 °C | 24.1 °C | 98.81 mm |
| November | 5.4 °C | 19.3 °C | 87.63 mm |
| December | 2.4 °C | 15.3 °C | 92.2 mm |
| Annual | 10.9 °C | 23.3 °C | 1360.44 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°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 |