Groveton, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.9 °C (low) to 19.4 °C (high). Annual precipitation averages 1139.2 Millimeters. Groveton 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.6 °C | 6.6 °C | 77.47 mm |
| February | -1.7 °C | 8.4 °C | 67.56 mm |
| March | 2.1 °C | 13.1 °C | 96.77 mm |
| April | 7.7 °C | 19.6 °C | 86.61 mm |
| May | 13.1 °C | 24.3 °C | 112.52 mm |
| June | 18.2 °C | 28.9 °C | 114.05 mm |
| July | 20.9 °C | 31.4 °C | 116.08 mm |
| August | 19.9 °C | 30.4 °C | 90.68 mm |
| September | 16.3 °C | 26.7 °C | 108.2 mm |
| October | 9.7 °C | 20.3 °C | 97.79 mm |
| November | 3.8 °C | 14.2 °C | 77.72 mm |
| December | -0.1 °C | 8.8 °C | 93.73 mm |
| Annual | 8.9 °C | 19.4 °C | 1139.18 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 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 |