Otway, 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 65.2 °F (high). Annual precipitation averages 45.5 Inches. Otway is located in USDA Plant Hardiness Zone 6b. 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 | 22.6 °F | 40.5 °F | 3.28 in. |
| February | 24.8 °F | 44.6 °F | 3.25 in. |
| March | 31.7 °F | 54.0 °F | 4.24 in. |
| April | 41.4 °F | 66.8 °F | 4.29 in. |
| May | 51.6 °F | 75.0 °F | 4.69 in. |
| June | 60.3 °F | 82.9 °F | 4.47 in. |
| July | 63.9 °F | 86.0 °F | 4.76 in. |
| August | 62.0 °F | 85.2 °F | 3.44 in. |
| September | 54.9 °F | 79.6 °F | 3.37 in. |
| October | 43.3 °F | 68.0 °F | 3.1 in. |
| November | 33.2 °F | 54.8 °F | 2.99 in. |
| December | 27.4 °F | 44.4 °F | 3.62 in. |
| Annual | 43.1 °F | 65.2 °F | 45.5 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 |