Matheny, West Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 6 °C (low) to 18.4 °C (high). Annual precipitation averages 1277.6 Millimeters. Matheny 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 | -4.7 °C | 5.7 °C | 98.81 mm |
| February | -3.4 °C | 8.1 °C | 94.74 mm |
| March | -0.2 °C | 12.9 °C | 108.46 mm |
| April | 4.8 °C | 19.8 °C | 120.4 mm |
| May | 10.3 °C | 23.7 °C | 130.56 mm |
| June | 15.1 °C | 27.3 °C | 119.63 mm |
| July | 17.3 °C | 28.9 °C | 144.27 mm |
| August | 16.6 °C | 28.4 °C | 108.97 mm |
| September | 12.9 °C | 25.6 °C | 89.66 mm |
| October | 5.9 °C | 19.4 °C | 73.66 mm |
| November | 0.3 °C | 12.9 °C | 81.28 mm |
| December | -2.6 °C | 7.5 °C | 107.19 mm |
| Annual | 6 °C | 18.4 °C | 1277.63 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 | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |