Gainesville, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.1 °C (low) to 19 °C (high). Annual precipitation averages 1104.4 Millimeters. Gainesville 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 | -4.3 °C | 6.3 °C | 74.93 mm |
| February | -3.4 °C | 7.9 °C | 64.26 mm |
| March | 0.4 °C | 12.8 °C | 91.95 mm |
| April | 5.9 °C | 19.3 °C | 82.04 mm |
| May | 11.5 °C | 23.8 °C | 109.47 mm |
| June | 16.5 °C | 28.6 °C | 112.52 mm |
| July | 19.2 °C | 30.9 °C | 104.9 mm |
| August | 18 °C | 29.9 °C | 90.93 mm |
| September | 14.2 °C | 26.4 °C | 111.76 mm |
| October | 7.3 °C | 20.1 °C | 92.96 mm |
| November | 1.6 °C | 13.9 °C | 80.77 mm |
| December | -2 °C | 8.4 °C | 87.88 mm |
| Annual | 7.1 °C | 19 °C | 1104.37 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 7a : -17.8°C to -15°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |