Genoa, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.6 °F (low) to 59.8 °F (high). Annual precipitation averages 36.1 Inches. Genoa 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 18.6 °F | 33.0 °F | 2.4 in. |
| February | 20.3 °F | 36.0 °F | 2.17 in. |
| March | 28.1 °F | 45.8 °F | 2.6 in. |
| April | 38.9 °F | 58.8 °F | 3.71 in. |
| May | 50.6 °F | 70.4 °F | 3.6 in. |
| June | 60.6 °F | 80.4 °F | 3.64 in. |
| July | 64.1 °F | 84.3 °F | 3.45 in. |
| August | 62.1 °F | 81.9 °F | 3.31 in. |
| September | 55.2 °F | 76.1 °F | 3.08 in. |
| October | 43.1 °F | 63.4 °F | 2.92 in. |
| November | 33.0 °F | 49.5 °F | 2.78 in. |
| December | 24.5 °F | 38.0 °F | 2.43 in. |
| Annual | 41.6 °F | 59.8 °F | 36.09 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 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 |