Lake Wilson, Minnesota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 1.5 °C (low) to 12.4 °C (high). Annual precipitation averages 756.4 Millimeters. Lake Wilson is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.4 °C | -5 °C | 18.03 mm |
| February | -12.3 °C | -2.4 °C | 21.84 mm |
| March | -5.9 °C | 4.3 °C | 40.13 mm |
| April | 0.7 °C | 12.6 °C | 77.22 mm |
| May | 7.9 °C | 19.9 °C | 99.57 mm |
| June | 14.2 °C | 25.6 °C | 119.89 mm |
| July | 16.2 °C | 27.7 °C | 87.38 mm |
| August | 14.7 °C | 26.3 °C | 87.63 mm |
| September | 9.9 °C | 22.5 °C | 87.38 mm |
| October | 2.5 °C | 14.7 °C | 58.42 mm |
| November | -4.7 °C | 5.4 °C | 33.78 mm |
| December | -11.2 °C | -2.4 °C | 25.15 mm |
| Annual | 1.5 °C | 12.4 °C | 756.42 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |