Deep Water, West Virginia has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.9 °C (low) to 19.1 °C (high). Annual precipitation averages 1208.5 Millimeters. Deep Water 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.2 °C | 6.3 °C | 84.07 mm |
| February | -3.1 °C | 8.4 °C | 76.96 mm |
| March | 0.4 °C | 13.4 °C | 108.46 mm |
| April | 5.6 °C | 20.3 °C | 98.55 mm |
| May | 11.1 °C | 24.2 °C | 128.02 mm |
| June | 15.9 °C | 28.1 °C | 118.36 mm |
| July | 18.3 °C | 29.7 °C | 145.03 mm |
| August | 17.7 °C | 29.3 °C | 107.44 mm |
| September | 13.9 °C | 26.3 °C | 88.65 mm |
| October | 7.2 °C | 20.3 °C | 78.74 mm |
| November | 1.3 °C | 13.9 °C | 77.72 mm |
| December | -1.7 °C | 8.4 °C | 96.52 mm |
| Annual | 6.9 °C | 19.1 °C | 1208.52 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |