Itmann, West Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 42.6 °F (low) to 64.8 °F (high). Annual precipitation averages 48.8 Inches. Itmann 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.4 °F | 42.4 °F | 3.96 in. |
| February | 25.6 °F | 46.5 °F | 3.6 in. |
| March | 31.5 °F | 54.9 °F | 4.23 in. |
| April | 40.4 °F | 67.1 °F | 4.46 in. |
| May | 50.2 °F | 74.4 °F | 5.17 in. |
| June | 58.7 °F | 80.8 °F | 4.52 in. |
| July | 62.7 °F | 83.8 °F | 5.33 in. |
| August | 61.5 °F | 82.7 °F | 4.02 in. |
| September | 54.9 °F | 77.6 °F | 3.37 in. |
| October | 42.6 °F | 66.9 °F | 3.02 in. |
| November | 32.5 °F | 55.3 °F | 3.14 in. |
| December | 27.3 °F | 45.6 °F | 3.98 in. |
| Annual | 42.6 °F | 64.8 °F | 48.8 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |