Edgerton, Minnesota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 1.4 °C (low) to 12.7 °C (high). Annual precipitation averages 751.1 Millimeters. Edgerton 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 | -14.4 °C | -4.7 °C | 17.78 mm |
| February | -12.3 °C | -2.1 °C | 21.84 mm |
| March | -5.8 °C | 4.7 °C | 37.08 mm |
| April | 0.7 °C | 13.1 °C | 71.63 mm |
| May | 7.8 °C | 20 °C | 100.84 mm |
| June | 14.2 °C | 25.7 °C | 117.09 mm |
| July | 16.1 °C | 27.9 °C | 88.39 mm |
| August | 14.6 °C | 26.6 °C | 88.14 mm |
| September | 9.7 °C | 22.9 °C | 88.9 mm |
| October | 2.3 °C | 15.1 °C | 60.71 mm |
| November | -4.9 °C | 5.7 °C | 31.75 mm |
| December | -11.3 °C | -2.1 °C | 26.92 mm |
| Annual | 1.4 °C | 12.7 °C | 751.07 mm |
| 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 : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |