| 2023 Hardiness Zone: | Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F |
| Average First Frost Date: | Oct. 1 - Oct. 10 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 53b - Kettle Moraines |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 53020 - Elkhart Lake, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 9 | 13 | 23 | 34 | 45 | 55 | 60 | 59 | 50 | 39 | 28 | 16 | 36 |
| Avg Max Temp (°F) | 25 | 30 | 41 | 55 | 69 | 78 | 82 | 79 | 71 | 59 | 43 | 30 | 55 |
| Avg Precip (In.) | 1.44 | 1.22 | 2.32 | 3.34 | 3.47 | 3.83 | 3.85 | 4.43 | 3.85 | 2.81 | 2.71 | 1.83 | 35.08 |