Darbyville, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.1 °F (low) to 62.9 °F (high). Annual precipitation averages 41 Inches. Darbyville is located in USDA Plant Hardiness Zone 6b. 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 | 21.6 °F | 37.3 °F | 3.01 in. |
| February | 23.3 °F | 40.5 °F | 2.42 in. |
| March | 30.9 °F | 50.7 °F | 3.45 in. |
| April | 41.5 °F | 63.6 °F | 3.89 in. |
| May | 52.5 °F | 73.7 °F | 4.45 in. |
| June | 61.2 °F | 81.9 °F | 4.57 in. |
| July | 64.3 °F | 84.7 °F | 4.06 in. |
| August | 62.4 °F | 83.9 °F | 3.49 in. |
| September | 54.6 °F | 78.2 °F | 2.97 in. |
| October | 43.7 °F | 65.9 °F | 2.77 in. |
| November | 33.6 °F | 52.6 °F | 3.02 in. |
| December | 27.0 °F | 41.7 °F | 2.88 in. |
| Annual | 43.1 °F | 62.9 °F | 40.98 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°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 |