Sturgeon Lake, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1 °C (low) to 11 °C (high). Annual precipitation averages 786.6 Millimeters. Sturgeon Lake is located in USDA Plant Hardiness Zone 4a. 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 | -17.7 °C | -6.5 °C | 20.83 mm |
| February | -15.7 °C | -3.3 °C | 21.08 mm |
| March | -8.7 °C | 3.4 °C | 36.07 mm |
| April | -1.7 °C | 10.9 °C | 61.72 mm |
| May | 4.7 °C | 18.6 °C | 85.85 mm |
| June | 10.3 °C | 23.7 °C | 118.62 mm |
| July | 13.3 °C | 26.7 °C | 114.55 mm |
| August | 12.2 °C | 25.5 °C | 99.06 mm |
| September | 7.8 °C | 20.8 °C | 81.53 mm |
| October | 1.4 °C | 12.7 °C | 76.96 mm |
| November | -5.5 °C | 3.7 °C | 40.39 mm |
| December | -12.9 °C | -3.7 °C | 29.97 mm |
| Annual | -1 °C | 11 °C | 786.63 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 4a : -34.4°C to -31.7°C |
| Plant Hardiness Zone - 2012 | Zone 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |