Elkhart Lake, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.4 °C (low) to 12.6 °C (high). Annual precipitation averages 846.3 Millimeters. Elkhart Lake is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.7 °C | -3.6 °C | 40.64 mm |
| February | -10.7 °C | -1.7 °C | 35.31 mm |
| March | -5.1 °C | 5.2 °C | 49.02 mm |
| April | 1.1 °C | 11.9 °C | 88.9 mm |
| May | 7.8 °C | 18.7 °C | 98.55 mm |
| June | 13.4 °C | 24.3 °C | 104.14 mm |
| July | 15.6 °C | 27.1 °C | 93.22 mm |
| August | 14.7 °C | 25.9 °C | 90.68 mm |
| September | 10.3 °C | 22.2 °C | 73.66 mm |
| October | 3.9 °C | 14.7 °C | 74.42 mm |
| November | -2.2 °C | 6.7 °C | 52.32 mm |
| December | -7.9 °C | -0.4 °C | 45.47 mm |
| Annual | 2.4 °C | 12.6 °C | 846.33 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |