Eagle River, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.6 °F (low) to 48.9 °F (high). Annual precipitation averages 30.1 Inches. 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 | 13.1 °F | 24.4 °F | 2.52 in. |
| February | 12.8 °F | 26.1 °F | 1.65 in. |
| March | 19.7 °F | 34.9 °F | 1.61 in. |
| April | 29.6 °F | 44.4 °F | 1.98 in. |
| May | 39.3 °F | 57.3 °F | 2.65 in. |
| June | 47.9 °F | 66.3 °F | 2.91 in. |
| July | 55.6 °F | 72.0 °F | 2.73 in. |
| August | 57.0 °F | 72.4 °F | 2.41 in. |
| September | 51.0 °F | 65.7 °F | 3.13 in. |
| October | 39.7 °F | 53.1 °F | 3.2 in. |
| November | 29.0 °F | 39.9 °F | 2.77 in. |
| December | 20.2 °F | 30.0 °F | 2.56 in. |
| Annual | 34.6 °F | 48.9 °F | 30.12 in. |
| 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 : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |