Mount Pleasant, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.5 °C (low) to 13.3 °C (high). Annual precipitation averages 923.3 Millimeters. Mount Pleasant is located in USDA Plant Hardiness Zone 5b. 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 | -9.3 °C | -1.3 °C | 47.5 mm |
| February | -7.8 °C | 0.4 °C | 46.23 mm |
| March | -2.8 °C | 5.8 °C | 58.67 mm |
| April | 2.8 °C | 11.8 °C | 106.68 mm |
| May | 8.6 °C | 18.1 °C | 105.92 mm |
| June | 14.3 °C | 23.7 °C | 106.17 mm |
| July | 17.6 °C | 26.9 °C | 82.55 mm |
| August | 17.2 °C | 26.2 °C | 90.68 mm |
| September | 12.8 °C | 22.6 °C | 85.09 mm |
| October | 6.2 °C | 15.6 °C | 79.25 mm |
| November | -0.2 °C | 8.2 °C | 62.48 mm |
| December | -5.8 °C | 1.7 °C | 52.07 mm |
| Annual | 4.5 °C | 13.3 °C | 923.29 mm |
| 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 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |