Dover, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.7 °C (low) to 22.8 °C (high). Annual precipitation averages 1351.3 Millimeters. Dover 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.6 °C | 12.4 °C | 95 mm |
| February | 1.3 °C | 14.2 °C | 80.01 mm |
| March | 4.7 °C | 18.2 °C | 98.55 mm |
| April | 9.7 °C | 23.1 °C | 85.09 mm |
| May | 14.7 °C | 26.9 °C | 101.09 mm |
| June | 19.2 °C | 30.6 °C | 131.57 mm |
| July | 21.4 °C | 32.2 °C | 162.56 mm |
| August | 20.4 °C | 31.1 °C | 158.24 mm |
| September | 17.4 °C | 28.5 °C | 165.35 mm |
| October | 10.9 °C | 23.6 °C | 97.54 mm |
| November | 5.3 °C | 18.4 °C | 88.14 mm |
| December | 2.2 °C | 14.1 °C | 88.14 mm |
| Annual | 10.7 °C | 22.8 °C | 1351.28 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 40-50 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 |