Stonega, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 6 °C (low) to 18.5 °C (high). Annual precipitation averages 1380.2 Millimeters. Stonega is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.7 °C | 6.3 °C | 109.98 mm |
| February | -3.2 °C | 8.6 °C | 112.52 mm |
| March | 0.2 °C | 13.5 °C | 131.06 mm |
| April | 4.9 °C | 19.3 °C | 112.78 mm |
| May | 10.1 °C | 23.4 °C | 122.94 mm |
| June | 14.7 °C | 27.2 °C | 130.3 mm |
| July | 16.9 °C | 28.6 °C | 152.4 mm |
| August | 16.3 °C | 28 °C | 115.57 mm |
| September | 12.7 °C | 25.7 °C | 92.46 mm |
| October | 6.1 °C | 19.8 °C | 83.31 mm |
| November | 0.4 °C | 13.6 °C | 89.92 mm |
| December | -2.4 °C | 8.3 °C | 127 mm |
| Annual | 6 °C | 18.5 °C | 1380.24 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |