Greenland, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.9 °C (low) to 10.5 °C (high). Annual precipitation averages 871.7 Millimeters. Greenland is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.2 °C | -5.5 °C | 67.06 mm |
| February | -14.7 °C | -3.4 °C | 43.69 mm |
| March | -10.1 °C | 2.6 °C | 44.7 mm |
| April | -2.8 °C | 9.4 °C | 65.02 mm |
| May | 3.9 °C | 17.6 °C | 83.57 mm |
| June | 9.4 °C | 22.9 °C | 81.79 mm |
| July | 12.2 °C | 25.2 °C | 88.9 mm |
| August | 11.3 °C | 24.3 °C | 77.98 mm |
| September | 7.6 °C | 19.8 °C | 86.61 mm |
| October | 1.5 °C | 11.9 °C | 92.46 mm |
| November | -4.3 °C | 3.7 °C | 71.37 mm |
| December | -10.4 °C | -2.7 °C | 68.58 mm |
| Annual | -0.9 °C | 10.5 °C | 871.73 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 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 | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |