Owensville, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.7 °F (low) to 64.1 °F (high). Annual precipitation averages 45.4 Inches. Owensville 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 | 23.2 °F | 39.1 °F | 3.24 in. |
| February | 25.4 °F | 43.3 °F | 2.97 in. |
| March | 33.1 °F | 52.9 °F | 4.2 in. |
| April | 43.3 °F | 65.0 °F | 4.64 in. |
| May | 53.8 °F | 74.0 °F | 4.88 in. |
| June | 62.4 °F | 82.3 °F | 4.75 in. |
| July | 65.7 °F | 85.4 °F | 4.31 in. |
| August | 63.8 °F | 84.8 °F | 3.67 in. |
| September | 56.9 °F | 78.8 °F | 3.02 in. |
| October | 45.3 °F | 67.0 °F | 3.0 in. |
| November | 35.1 °F | 53.7 °F | 3.24 in. |
| December | 28.4 °F | 43.2 °F | 3.51 in. |
| Annual | 44.7 °F | 64.1 °F | 45.43 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 |