Black Earth, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.6 °C (low) to 13.9 °C (high). Annual precipitation averages 944.1 Millimeters. Black Earth 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 | -12.3 °C | -2.7 °C | 37.59 mm |
| February | -10.7 °C | -0.3 °C | 35.31 mm |
| March | -4.7 °C | 6.3 °C | 51.56 mm |
| April | 1.8 °C | 14 °C | 97.79 mm |
| May | 8.3 °C | 20.7 °C | 112.52 mm |
| June | 14.2 °C | 26.1 °C | 136.65 mm |
| July | 16.3 °C | 28.1 °C | 115.82 mm |
| August | 15.1 °C | 27.1 °C | 105.16 mm |
| September | 10.3 °C | 23.1 °C | 84.33 mm |
| October | 3.9 °C | 16 °C | 70.1 mm |
| November | -2.4 °C | 7.4 °C | 56.64 mm |
| December | -8.2 °C | 0.4 °C | 40.64 mm |
| Annual | 2.6 °C | 13.9 °C | 944.11 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |