Marlinton, West Virginia has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38 °F (low) to 61.4 °F (high). Annual precipitation averages 45.6 Inches. Marlinton 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 | 18.4 °F | 38.2 °F | 3.64 in. |
| February | 20.6 °F | 42.2 °F | 3.2 in. |
| March | 26.9 °F | 50.5 °F | 4.08 in. |
| April | 35.6 °F | 63.1 °F | 4.02 in. |
| May | 45.7 °F | 71.4 °F | 4.87 in. |
| June | 53.9 °F | 77.9 °F | 3.9 in. |
| July | 58.0 °F | 81.4 °F | 4.17 in. |
| August | 57.1 °F | 80.2 °F | 3.95 in. |
| September | 50.7 °F | 74.6 °F | 3.66 in. |
| October | 38.4 °F | 63.9 °F | 2.89 in. |
| November | 28.2 °F | 51.5 °F | 3.14 in. |
| December | 22.4 °F | 41.8 °F | 4.06 in. |
| Annual | 38 °F | 61.4 °F | 45.58 in. |
| 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 : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |