Lafayette, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.6 °C (low) to 19.5 °C (high). Annual precipitation averages 1044.7 Millimeters. Lafayette is located in USDA Plant Hardiness Zone 7b. 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 | -2.9 °C | 7.4 °C | 82.04 mm |
| February | -1.9 °C | 9.6 °C | 68.33 mm |
| March | 1.7 °C | 14.1 °C | 90.68 mm |
| April | 6.7 °C | 20.2 °C | 85.09 mm |
| May | 11.8 °C | 24.3 °C | 97.79 mm |
| June | 16.3 °C | 28.2 °C | 111.51 mm |
| July | 18.7 °C | 30.2 °C | 110.24 mm |
| August | 17.9 °C | 29.3 °C | 82.8 mm |
| September | 14.2 °C | 25.9 °C | 99.82 mm |
| October | 7.7 °C | 20.4 °C | 64.01 mm |
| November | 1.8 °C | 14.6 °C | 71.12 mm |
| December | -1.3 °C | 9.2 °C | 81.28 mm |
| Annual | 7.6 °C | 19.5 °C | 1044.71 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 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 |