Elkhart Lake, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.4 °F (low) to 54.7 °F (high). Annual precipitation averages 33.3 Inches. 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 | 10.9 °F | 25.6 °F | 1.6 in. |
| February | 12.8 °F | 29.0 °F | 1.39 in. |
| March | 22.9 °F | 41.3 °F | 1.93 in. |
| April | 33.9 °F | 53.5 °F | 3.5 in. |
| May | 46.0 °F | 65.6 °F | 3.88 in. |
| June | 56.2 °F | 75.8 °F | 4.1 in. |
| July | 60.1 °F | 80.7 °F | 3.67 in. |
| August | 58.5 °F | 78.7 °F | 3.57 in. |
| September | 50.6 °F | 72.0 °F | 2.9 in. |
| October | 39.1 °F | 58.4 °F | 2.93 in. |
| November | 28.1 °F | 44.0 °F | 2.06 in. |
| December | 17.8 °F | 31.3 °F | 1.79 in. |
| Annual | 36.4 °F | 54.7 °F | 33.32 in. |
| 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 : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |