Bear Creek, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.7 °C (low) to 12.7 °C (high). Annual precipitation averages 843.5 Millimeters. Bear Creek 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 | -12.8 °C | -3.8 °C | 33.02 mm |
| February | -11.9 °C | -1.6 °C | 28.7 mm |
| March | -6 °C | 4.7 °C | 46.99 mm |
| April | 0.7 °C | 12.5 °C | 78.74 mm |
| May | 7.4 °C | 19.7 °C | 96.27 mm |
| June | 13 °C | 24.9 °C | 113.79 mm |
| July | 15.3 °C | 27.4 °C | 99.31 mm |
| August | 14.2 °C | 26.3 °C | 93.47 mm |
| September | 9.6 °C | 22.1 °C | 89.92 mm |
| October | 3.1 °C | 14.4 °C | 73.91 mm |
| November | -2.9 °C | 6.4 °C | 47.5 mm |
| December | -9.1 °C | -0.8 °C | 41.91 mm |
| Annual | 1.7 °C | 12.7 °C | 843.53 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 | Dfb - Humid Continental Mild Summer, Wet All Year |