Allenton, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.3 °C (low) to 12.9 °C (high). Annual precipitation averages 892.3 Millimeters. Allenton is located in USDA Plant Hardiness Zone 5a. 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 | -12.1 °C | -3.2 °C | 42.42 mm |
| February | -10.6 °C | -1.1 °C | 36.83 mm |
| March | -4.9 °C | 5.3 °C | 50.04 mm |
| April | 1.3 °C | 12.5 °C | 91.95 mm |
| May | 7.4 °C | 19.2 °C | 98.04 mm |
| June | 13 °C | 24.7 °C | 113.03 mm |
| July | 15.6 °C | 27.1 °C | 102.36 mm |
| August | 14.4 °C | 26.1 °C | 100.58 mm |
| September | 10.1 °C | 22.2 °C | 84.58 mm |
| October | 3.8 °C | 14.9 °C | 74.42 mm |
| November | -2.3 °C | 6.9 °C | 52.07 mm |
| December | -8.2 °C | 0 °C | 45.97 mm |
| Annual | 2.3 °C | 12.9 °C | 892.29 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 5a : -28.9°C to -26.1°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 |