Carbon Hill, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.2 °F (low) to 63.6 °F (high). Annual precipitation averages 41.6 Inches. Carbon Hill is located in USDA Plant Hardiness Zone 6a. 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 | 19.3 °F | 38.6 °F | 3.14 in. |
| February | 21.0 °F | 41.9 °F | 2.66 in. |
| March | 28.2 °F | 51.9 °F | 3.63 in. |
| April | 38.0 °F | 65.3 °F | 3.78 in. |
| May | 48.6 °F | 73.9 °F | 4.12 in. |
| June | 57.8 °F | 81.6 °F | 4.39 in. |
| July | 61.8 °F | 84.8 °F | 4.36 in. |
| August | 60.0 °F | 83.9 °F | 3.46 in. |
| September | 52.1 °F | 77.6 °F | 3.15 in. |
| October | 39.8 °F | 66.2 °F | 2.92 in. |
| November | 30.6 °F | 53.9 °F | 2.87 in. |
| December | 24.8 °F | 43.0 °F | 3.09 in. |
| Annual | 40.2 °F | 63.6 °F | 41.57 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |