Grey Eagle, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.4 °F (low) to 52.7 °F (high). Annual precipitation averages 28.6 Inches. Grey Eagle 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.6 °F | 20.3 °F | 0.73 in. |
| February | 5.3 °F | 25.5 °F | 0.7 in. |
| March | 18.2 °F | 37.9 °F | 1.4 in. |
| April | 31.6 °F | 53.5 °F | 2.51 in. |
| May | 44.5 °F | 66.9 °F | 3.38 in. |
| June | 55.1 °F | 76.7 °F | 4.52 in. |
| July | 59.7 °F | 81.3 °F | 4.14 in. |
| August | 56.8 °F | 79.1 °F | 3.48 in. |
| September | 48.3 °F | 71.0 °F | 2.9 in. |
| October | 35.6 °F | 55.8 °F | 2.78 in. |
| November | 22.4 °F | 39.1 °F | 1.22 in. |
| December | 9.5 °F | 25.7 °F | 0.88 in. |
| Annual | 32.4 °F | 52.7 °F | 28.64 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |