Rocky Mount, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.5 °C (low) to 19.6 °C (high). Annual precipitation averages 1240.8 Millimeters. Rocky Mount is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.9 °C | 7.7 °C | 103.38 mm |
| February | -2 °C | 9.9 °C | 81.53 mm |
| March | 1.6 °C | 14.4 °C | 96.27 mm |
| April | 6.6 °C | 20.3 °C | 106.68 mm |
| May | 11.7 °C | 24.2 °C | 118.62 mm |
| June | 16.2 °C | 28.2 °C | 114.3 mm |
| July | 18.6 °C | 30.1 °C | 116.59 mm |
| August | 17.8 °C | 29.2 °C | 99.31 mm |
| September | 14.1 °C | 25.8 °C | 131.32 mm |
| October | 7.6 °C | 20.5 °C | 84.07 mm |
| November | 1.7 °C | 14.9 °C | 86.11 mm |
| December | -1.3 °C | 9.6 °C | 102.62 mm |
| Annual | 7.5 °C | 19.6 °C | 1240.8 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |