Eagan, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.6 °F (low) to 54.9 °F (high). Annual precipitation averages 34.8 Inches. Eagan 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 | 7.3 °F | 23.3 °F | 1.03 in. |
| February | 10.5 °F | 28.0 °F | 1.02 in. |
| March | 22.6 °F | 40.7 °F | 1.81 in. |
| April | 35.9 °F | 55.7 °F | 3.16 in. |
| May | 48.5 °F | 68.3 °F | 4.36 in. |
| June | 59.0 °F | 78.1 °F | 5.09 in. |
| July | 63.4 °F | 82.4 °F | 4.44 in. |
| August | 60.7 °F | 80.1 °F | 4.54 in. |
| September | 52.3 °F | 72.8 °F | 3.38 in. |
| October | 39.3 °F | 58.3 °F | 2.85 in. |
| November | 26.3 °F | 42.1 °F | 1.75 in. |
| December | 13.9 °F | 28.5 °F | 1.34 in. |
| Annual | 36.6 °F | 54.9 °F | 34.77 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 |