| 2023 Hardiness Zone: | Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 51g - Door Peninsula |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 54209 - Egg Harbor, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 7 | 10 | 21 | 32 | 43 | 53 | 59 | 57 | 50 | 39 | 27 | 15 | 34 |
| Avg Max Temp (°F) | 24 | 28 | 38 | 51 | 64 | 74 | 79 | 77 | 68 | 56 | 42 | 29 | 52 |
| Avg Precip (In.) | 1.94 | 1.26 | 2.08 | 2.57 | 2.77 | 3.4 | 3.17 | 3.59 | 3.44 | 2.69 | 2.58 | 1.89 | 31.39 |