Hybla Valley, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.4 °C (low) to 19.6 °C (high). Annual precipitation averages 1140.5 Millimeters. Hybla Valley is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.1 °C | 6.9 °C | 77.22 mm |
| February | -1.2 °C | 8.8 °C | 67.82 mm |
| March | 2.6 °C | 13.3 °C | 96.77 mm |
| April | 8.1 °C | 19.7 °C | 86.87 mm |
| May | 13.4 °C | 24.3 °C | 112.27 mm |
| June | 18.6 °C | 29.1 °C | 113.79 mm |
| July | 21.3 °C | 31.6 °C | 115.82 mm |
| August | 20.3 °C | 30.6 °C | 90.42 mm |
| September | 16.7 °C | 26.8 °C | 108.97 mm |
| October | 10 °C | 20.6 °C | 98.3 mm |
| November | 4.2 °C | 14.3 °C | 78.23 mm |
| December | 0.3 °C | 9.2 °C | 93.98 mm |
| Annual | 9.4 °C | 19.6 °C | 1140.46 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |