Bristol, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.2 °C (low) to 19.9 °C (high). Annual precipitation averages 1213.1 Millimeters. Bristol is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.2 °C | 7.8 °C | 100.33 mm |
| February | -1.8 °C | 10.2 °C | 104.14 mm |
| March | 1.7 °C | 15.1 °C | 116.84 mm |
| April | 6.3 °C | 20.7 °C | 102.36 mm |
| May | 11.4 °C | 24.9 °C | 110.49 mm |
| June | 15.9 °C | 28.3 °C | 123.44 mm |
| July | 17.9 °C | 29.9 °C | 119.63 mm |
| August | 17.3 °C | 29.5 °C | 99.57 mm |
| September | 13.8 °C | 26.9 °C | 72.39 mm |
| October | 7.2 °C | 21.2 °C | 77.98 mm |
| November | 1.3 °C | 14.9 °C | 73.91 mm |
| December | -1.5 °C | 9.6 °C | 112.01 mm |
| Annual | 7.2 °C | 19.9 °C | 1213.09 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |