Zoar, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 31.5 °F (low) to 52.6 °F (high). Annual precipitation averages 32.5 Inches. Zoar is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.4 °F | 22.9 °F | 1.14 in. |
| February | 6.1 °F | 27.1 °F | 1.05 in. |
| March | 17.2 °F | 38.7 °F | 1.66 in. |
| April | 29.9 °F | 52.4 °F | 2.98 in. |
| May | 42.1 °F | 65.6 °F | 3.63 in. |
| June | 52.1 °F | 74.9 °F | 4.46 in. |
| July | 56.0 °F | 78.9 °F | 3.77 in. |
| August | 54.1 °F | 77.1 °F | 3.55 in. |
| September | 46.1 °F | 69.3 °F | 3.7 in. |
| October | 34.6 °F | 55.5 °F | 3.11 in. |
| November | 23.8 °F | 40.7 °F | 1.89 in. |
| December | 11.8 °F | 28.0 °F | 1.54 in. |
| Annual | 31.5 °F | 52.6 °F | 32.48 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |