West Bend, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.5 °C (low) to 13 °C (high). Annual precipitation averages 907.3 Millimeters. West Bend is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.4 °C | -2.8 °C | 46.48 mm |
| February | -10 °C | -0.8 °C | 39.12 mm |
| March | -4.7 °C | 5.4 °C | 51.05 mm |
| April | 1.3 °C | 12.4 °C | 96.52 mm |
| May | 7.4 °C | 19.1 °C | 100.08 mm |
| June | 12.9 °C | 24.7 °C | 104.39 mm |
| July | 15.7 °C | 27.2 °C | 105.41 mm |
| August | 14.7 °C | 26.1 °C | 106.43 mm |
| September | 10.3 °C | 22.3 °C | 83.31 mm |
| October | 4.1 °C | 15.1 °C | 73.66 mm |
| November | -2.1 °C | 7.1 °C | 51.82 mm |
| December | -7.7 °C | 0.3 °C | 49.02 mm |
| Annual | 2.5 °C | 13 °C | 907.29 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |