Bergoo, West Virginia has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.1 °C (low) to 16.8 °C (high). Annual precipitation averages 1510.3 Millimeters. Bergoo is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.8 °C | 4.1 °C | 110.74 mm |
| February | -5.6 °C | 6.3 °C | 101.85 mm |
| March | -2.1 °C | 10.8 °C | 130.56 mm |
| April | 2.9 °C | 17.9 °C | 125.22 mm |
| May | 8.2 °C | 22.1 °C | 156.21 mm |
| June | 12.8 °C | 25.7 °C | 152.65 mm |
| July | 15.1 °C | 27.3 °C | 172.47 mm |
| August | 14.4 °C | 26.7 °C | 129.79 mm |
| September | 11.1 °C | 23.9 °C | 110.74 mm |
| October | 4.4 °C | 18.2 °C | 103.38 mm |
| November | -1.1 °C | 11.7 °C | 95.76 mm |
| December | -4.3 °C | 6.3 °C | 120.9 mm |
| Annual | 4.1 °C | 16.8 °C | 1510.27 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |