Wisconsin is characterized by a humid continental climate with distinct seasonal variations in temperature and precipitation. Major rivers include the Mississippi, St. Croix, Wisconsin, and Menominee, which are fed by tributaries that drain into the Great Lakes or the Mississippi River. The region also contains numerous reservoirs and dams, including the Wisconsin River system and the Chippewa River. Hydrology in Wisconsin is affected by snowpack, which can lead to spring flooding, and by changes in land use and agricultural practices. In recent years, the state has experienced an increase in extreme precipitation events, leading to more frequent flooding and erosion. Overall, the state's hydrology is complex and influenced by multiple factors, including climate, topography, and human activity.