Buffalo, West Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 6.2 °C (low) to 18.9 °C (high). Annual precipitation averages 1099.3 Millimeters. Buffalo 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 Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.9 °C | 5.6 °C | 80.77 mm |
| February | -3.9 °C | 7.7 °C | 73.15 mm |
| March | -0.4 °C | 12.8 °C | 100.84 mm |
| April | 4.9 °C | 19.9 °C | 87.63 mm |
| May | 10.8 °C | 24.5 °C | 113.54 mm |
| June | 15.6 °C | 28.3 °C | 107.19 mm |
| July | 17.9 °C | 30.2 °C | 122.68 mm |
| August | 17 °C | 29.7 °C | 90.17 mm |
| September | 13.1 °C | 26.5 °C | 87.38 mm |
| October | 6.4 °C | 20.2 °C | 74.17 mm |
| November | 0.7 °C | 13.3 °C | 72.64 mm |
| December | -2.5 °C | 7.7 °C | 89.15 mm |
| Annual | 6.2 °C | 18.9 °C | 1099.31 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| 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 | Cfa - Humid Subtropical Climate |