Menomonee Falls, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3 °C (low) to 13.4 °C (high). Annual precipitation averages 910.9 Millimeters. Menomonee Falls 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 | -10.9 °C | -2.3 °C | 45.72 mm |
| February | -9.3 °C | -0.2 °C | 42.67 mm |
| March | -4.2 °C | 5.9 °C | 53.85 mm |
| April | 1.8 °C | 12.8 °C | 99.31 mm |
| May | 7.8 °C | 19.4 °C | 102.36 mm |
| June | 13.2 °C | 24.8 °C | 114.3 mm |
| July | 16.2 °C | 27.6 °C | 102.36 mm |
| August | 15.3 °C | 26.6 °C | 91.19 mm |
| September | 10.8 °C | 22.7 °C | 80.52 mm |
| October | 4.6 °C | 15.6 °C | 72.39 mm |
| November | -1.6 °C | 7.6 °C | 54.36 mm |
| December | -7.2 °C | 0.7 °C | 51.82 mm |
| Annual | 3 °C | 13.4 °C | 910.85 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 |