Maple Grove, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.3 °F (low) to 54.7 °F (high). Annual precipitation averages 33 Inches. Maple Grove is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 6.5 °F | 22.9 °F | 0.91 in. |
| February | 9.7 °F | 27.7 °F | 0.89 in. |
| March | 22.0 °F | 40.5 °F | 1.64 in. |
| April | 35.1 °F | 55.3 °F | 3.01 in. |
| May | 48.1 °F | 68.3 °F | 4.42 in. |
| June | 58.4 °F | 77.9 °F | 4.75 in. |
| July | 63.2 °F | 82.6 °F | 4.23 in. |
| August | 60.8 °F | 80.2 °F | 4.2 in. |
| September | 52.4 °F | 72.6 °F | 3.46 in. |
| October | 39.1 °F | 57.8 °F | 2.59 in. |
| November | 26.3 °F | 42.1 °F | 1.64 in. |
| December | 13.4 °F | 28.1 °F | 1.3 in. |
| Annual | 36.3 °F | 54.7 °F | 33.04 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |