Genoa City, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 38.1 °F (low) to 57.5 °F (high). Annual precipitation averages 37.2 Inches. Genoa City is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 13.5 °F | 29.0 °F | 1.77 in. |
| February | 16.2 °F | 33.0 °F | 1.85 in. |
| March | 25.4 °F | 44.3 °F | 2.15 in. |
| April | 35.7 °F | 57.1 °F | 3.75 in. |
| May | 47.0 °F | 68.7 °F | 4.37 in. |
| June | 56.8 °F | 78.5 °F | 4.84 in. |
| July | 61.3 °F | 82.5 °F | 3.72 in. |
| August | 59.5 °F | 80.9 °F | 3.81 in. |
| September | 51.8 °F | 74.3 °F | 3.58 in. |
| October | 40.4 °F | 61.0 °F | 3.01 in. |
| November | 29.8 °F | 46.7 °F | 2.4 in. |
| December | 19.5 °F | 34.2 °F | 1.99 in. |
| Annual | 38.1 °F | 57.5 °F | 37.24 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |