Wittenberg, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.6 °F (low) to 52.9 °F (high). Annual precipitation averages 33.2 Inches. Wittenberg 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 | 5.6 °F | 22.9 °F | 1.14 in. |
| February | 7.1 °F | 27.2 °F | 1.08 in. |
| March | 18.3 °F | 38.9 °F | 1.68 in. |
| April | 31.0 °F | 53.0 °F | 3.08 in. |
| May | 43.4 °F | 65.8 °F | 3.9 in. |
| June | 53.4 °F | 75.2 °F | 4.53 in. |
| July | 57.2 °F | 79.4 °F | 3.77 in. |
| August | 55.3 °F | 77.5 °F | 3.69 in. |
| September | 47.2 °F | 69.6 °F | 3.76 in. |
| October | 35.4 °F | 56.0 °F | 3.04 in. |
| November | 24.5 °F | 41.1 °F | 1.92 in. |
| December | 12.6 °F | 28.2 °F | 1.57 in. |
| Annual | 32.6 °F | 52.9 °F | 33.16 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 |