Wonewoc, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.6 °C (low) to 13.2 °C (high). Annual precipitation averages 941.8 Millimeters. Wonewoc is located in USDA Plant Hardiness Zone 4b. 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 | -13.5 °C | -3.5 °C | 34.54 mm |
| February | -11.9 °C | -0.9 °C | 30.99 mm |
| March | -5.7 °C | 5.8 °C | 49.78 mm |
| April | 0.8 °C | 13.4 °C | 100.08 mm |
| May | 7.4 °C | 20.1 °C | 116.08 mm |
| June | 13.2 °C | 25.3 °C | 138.18 mm |
| July | 15.3 °C | 27.6 °C | 106.17 mm |
| August | 14 °C | 26.4 °C | 111.76 mm |
| September | 9.3 °C | 22.4 °C | 93.22 mm |
| October | 2.8 °C | 15.1 °C | 70.61 mm |
| November | -3.4 °C | 6.7 °C | 50.55 mm |
| December | -9.5 °C | -0.4 °C | 39.88 mm |
| Annual | 1.6 °C | 13.2 °C | 941.84 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 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |