| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F | |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F | |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 53c - Southeastern Wisconsin Savannah and Till Plain | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 53933 - Fox Lake, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 7 | 12 | 23 | 35 | 46 | 55 | 60 | 58 | 49 | 39 | 26 | 14 | 35 |
| Avg Max Temp (°F) | 25 | 30 | 42 | 56 | 69 | 78 | 82 | 79 | 71 | 60 | 43 | 30 | 55 |
| Avg Precip (In.) | 1.25 | 1.16 | 2.14 | 3.25 | 3.24 | 3.98 | 4.11 | 4 | 3.63 | 2.46 | 2.29 | 1.5 | 33 |