Lyndhurst, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 6.4 °C (low) to 18.5 °C (high). Annual precipitation averages 1065.3 Millimeters. Lyndhurst 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 | 6.4 °C | 78.23 mm |
| February | -3.2 °C | 8.4 °C | 57.4 mm |
| March | 0.2 °C | 12.7 °C | 88.39 mm |
| April | 5.6 °C | 19 °C | 89.41 mm |
| May | 10.7 °C | 23.2 °C | 102.87 mm |
| June | 15.4 °C | 27.6 °C | 103.89 mm |
| July | 17.7 °C | 29.4 °C | 95 mm |
| August | 16.8 °C | 28.8 °C | 86.61 mm |
| September | 13.1 °C | 25.3 °C | 114.3 mm |
| October | 6.4 °C | 19.6 °C | 83.06 mm |
| November | 0.8 °C | 13.6 °C | 82.3 mm |
| December | -2.4 °C | 8.3 °C | 83.82 mm |
| Annual | 6.4 °C | 18.5 °C | 1065.28 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 | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |