Somers, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4 °C (low) to 13.6 °C (high). Annual precipitation averages 911.1 Millimeters. Somers is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.8 °C | -1.4 °C | 46.99 mm |
| February | -8.3 °C | 0.4 °C | 44.45 mm |
| March | -3.2 °C | 5.9 °C | 56.13 mm |
| April | 2.6 °C | 12.7 °C | 102.36 mm |
| May | 8.3 °C | 18.9 °C | 104.39 mm |
| June | 13.9 °C | 24.4 °C | 104.65 mm |
| July | 16.9 °C | 27.3 °C | 86.36 mm |
| August | 16.3 °C | 26.6 °C | 88.65 mm |
| September | 12.1 °C | 23 °C | 88.39 mm |
| October | 5.6 °C | 15.8 °C | 78.49 mm |
| November | -0.6 °C | 8.3 °C | 60.2 mm |
| December | -6.3 °C | 1.6 °C | 50.04 mm |
| Annual | 4 °C | 13.6 °C | 911.1 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |