The Upper Peninsula has a humid continental climate ("Dfb" in the Köppen climate classification system). The Great Lakes have a great effect on the larger part of the peninsula. Winters tend to be long, cold, and snowy for most of the peninsula, and because of its northern latitude, the daylight hours are short—around 8 hours between sunrise and sunset in the winter. Lake Superior has the greatest effect on the area, especially the northern and western parts. Lake-effect snow causes many areas to get in excess of of snow per year—especially in the Keweenaw Peninsula and Gogebic County, and to a lesser extent Baraga, Marquette and Alger counties, making the western UP a prominent part of the midwestern snow belt.