| 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. 11 - Oct. 20 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 52b - Paleozoic Plateau/Coulee Section | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 8 - 14 days Over 86°F |
Annual Climate Data for ZIP Code 53821 - Prairie du Chien, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 6 | 12 | 24 | 36 | 48 | 57 | 62 | 60 | 50 | 39 | 26 | 14 | 36 |
| Avg Max Temp (°F) | 25 | 32 | 44 | 59 | 71 | 80 | 84 | 81 | 73 | 62 | 44 | 31 | 57 |
| Avg Precip (In.) | 1.03 | 1.16 | 2.01 | 3.58 | 3.85 | 4.42 | 3.81 | 4.59 | 3.1 | 2.33 | 2.33 | 1.3 | 33.5 |