Prairie du Chien, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 37.4 °F (low) to 57.7 °F (high). Annual precipitation averages 37.5 Inches. Prairie du Chien is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 10.0 °F | 27.4 °F | 1.22 in. |
| February | 13.6 °F | 32.1 °F | 1.23 in. |
| March | 25.0 °F | 44.5 °F | 2.0 in. |
| April | 36.2 °F | 58.6 °F | 3.97 in. |
| May | 47.8 °F | 70.3 °F | 4.71 in. |
| June | 58.0 °F | 79.7 °F | 5.77 in. |
| July | 62.1 °F | 83.3 °F | 4.18 in. |
| August | 60.1 °F | 81.5 °F | 4.1 in. |
| September | 51.5 °F | 74.6 °F | 3.93 in. |
| October | 39.5 °F | 61.6 °F | 2.76 in. |
| November | 27.6 °F | 45.7 °F | 2.07 in. |
| December | 17.2 °F | 32.9 °F | 1.55 in. |
| Annual | 37.4 °F | 57.7 °F | 37.49 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |