| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F | |
| Average First Frost Date: | Oct. 21 - Oct. 31 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 54e - Chiwaukee Prairie Region | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 53108 - Caledonia, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 12 | 17 | 27 | 37 | 47 | 56 | 63 | 62 | 54 | 42 | 31 | 19 | 39 |
| Avg Max Temp (°F) | 28 | 32 | 42 | 54 | 66 | 76 | 81 | 79 | 72 | 60 | 45 | 33 | 56 |
| Avg Precip (In.) | 1.59 | 1.41 | 2.29 | 3.75 | 3.17 | 3.75 | 3.71 | 4.2 | 3.44 | 2.49 | 2.65 | 2.01 | 34.47 |