Eagan, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.6 °C (low) to 12.7 °C (high). Annual precipitation averages 883.2 Millimeters. 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 | -13.7 °C | -4.8 °C | 26.16 mm |
| February | -11.9 °C | -2.2 °C | 25.91 mm |
| March | -5.2 °C | 4.8 °C | 45.97 mm |
| April | 2.2 °C | 13.2 °C | 80.26 mm |
| May | 9.2 °C | 20.2 °C | 110.74 mm |
| June | 15 °C | 25.6 °C | 129.29 mm |
| July | 17.4 °C | 28 °C | 112.78 mm |
| August | 15.9 °C | 26.7 °C | 115.32 mm |
| September | 11.3 °C | 22.7 °C | 85.85 mm |
| October | 4.1 °C | 14.6 °C | 72.39 mm |
| November | -3.2 °C | 5.6 °C | 44.45 mm |
| December | -10.1 °C | -1.9 °C | 34.04 mm |
| Annual | 2.6 °C | 12.7 °C | 883.16 mm |
| 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 : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |