Maple Lake, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.4 °C (low) to 11.9 °C (high). Annual precipitation averages 787.4 Millimeters. Maple Lake is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -15.4 °C | -5.8 °C | 19.05 mm |
| February | -13.7 °C | -3.2 °C | 21.08 mm |
| March | -6.6 °C | 3.8 °C | 39.37 mm |
| April | 0.9 °C | 12.3 °C | 70.36 mm |
| May | 8.2 °C | 19.7 °C | 104.65 mm |
| June | 14.1 °C | 25 °C | 115.82 mm |
| July | 16.4 °C | 27.3 °C | 99.06 mm |
| August | 14.9 °C | 26.1 °C | 106.17 mm |
| September | 10.2 °C | 22.1 °C | 81.28 mm |
| October | 3.2 °C | 13.8 °C | 67.31 mm |
| November | -4.1 °C | 4.8 °C | 35.81 mm |
| December | -11.3 °C | -2.9 °C | 27.43 mm |
| Annual | 1.4 °C | 11.9 °C | 787.39 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |