Eagle River, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.4 °C (low) to 9.4 °C (high). Annual precipitation averages 765 Millimeters. Eagle River is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.5 °C | -4.2 °C | 64.01 mm |
| February | -10.7 °C | -3.3 °C | 41.91 mm |
| March | -6.8 °C | 1.6 °C | 40.89 mm |
| April | -1.3 °C | 6.9 °C | 50.29 mm |
| May | 4.1 °C | 14.1 °C | 67.31 mm |
| June | 8.8 °C | 19.1 °C | 73.91 mm |
| July | 13.1 °C | 22.2 °C | 69.34 mm |
| August | 13.9 °C | 22.4 °C | 61.21 mm |
| September | 10.6 °C | 18.7 °C | 79.5 mm |
| October | 4.3 °C | 11.7 °C | 81.28 mm |
| November | -1.7 °C | 4.4 °C | 70.36 mm |
| December | -6.6 °C | -1.1 °C | 65.02 mm |
| Annual | 1.4 °C | 9.4 °C | 765.03 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |