Galesville, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 36.4 °F (low) to 56.5 °F (high). Annual precipitation averages 35.8 Inches. Galesville is located in USDA Plant Hardiness Zone 4b. 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 | 7.7 °F | 25.9 °F | 1.06 in. |
| February | 11.1 °F | 30.7 °F | 1.11 in. |
| March | 23.1 °F | 43.1 °F | 1.85 in. |
| April | 35.4 °F | 57.6 °F | 3.75 in. |
| May | 47.5 °F | 69.7 °F | 4.53 in. |
| June | 57.8 °F | 79.1 °F | 4.97 in. |
| July | 61.8 °F | 82.7 °F | 4.33 in. |
| August | 59.6 °F | 80.7 °F | 4.42 in. |
| September | 51.4 °F | 73.5 °F | 3.99 in. |
| October | 38.9 °F | 60.0 °F | 2.57 in. |
| November | 27.2 °F | 44.2 °F | 1.84 in. |
| December | 15.2 °F | 31.1 °F | 1.38 in. |
| Annual | 36.4 °F | 56.5 °F | 35.8 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |