West Bend, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 36.6 °F (low) to 55.4 °F (high). Annual precipitation averages 35.7 Inches. 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 °F | 26.9 °F | 1.83 in. |
| February | 14.0 °F | 30.6 °F | 1.54 in. |
| March | 23.6 °F | 41.7 °F | 2.01 in. |
| April | 34.4 °F | 54.3 °F | 3.8 in. |
| May | 45.3 °F | 66.3 °F | 3.94 in. |
| June | 55.2 °F | 76.4 °F | 4.11 in. |
| July | 60.2 °F | 81.0 °F | 4.15 in. |
| August | 58.4 °F | 79.0 °F | 4.19 in. |
| September | 50.5 °F | 72.1 °F | 3.28 in. |
| October | 39.4 °F | 59.1 °F | 2.9 in. |
| November | 28.3 °F | 44.8 °F | 2.04 in. |
| December | 18.2 °F | 32.6 °F | 1.93 in. |
| Annual | 36.6 °F | 55.4 °F | 35.72 in. |
| 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 : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |