Northern parts of Wisconsin have lower average temperatures than the rest of the state. Precipitation is slightly higher in the north, especially at higher elevations. The state annual average precipitation is 31 inches. Summer thunderstorms are common in Wisconsin. Wisconsin is about 42 percent covered by forest.
Trees growing in the state include aspen, balsam fir, elm, hemlock, oak, tamarack and yellow birch.
Shrubs in Wisconsin include several types of wild berries, including black currants, blueberries and Juneberries. Wildflowers are abundant, especially in the fall. They include fireweed and goldenrod and more than 20 varieties of violets. Wisconsin has a wide variety of animals. Large animals include black bear, coyotes, white-tailed deer and wolves.