The humid continental is mostly covered with trees and grasses. They are separate in two types, cool summer, and warm summer. The warm summer type of Humid Continental almost covers half of the United States.Such as, Maine, New York, Wisconsin, Minnesota and a lot more. They are located at the 30-60 degrees North Hemisphere because, they were barely any land in the Southern Hemisphere. The cool summer type of humid continental is loacated in southern part of Cananda, Great Lakes, New England region of United states, and Southern part of Russia.
This image show the humid continental in the United States in the diagram the light blue represents warm humid continental and dark blue are cool humid continental
Here is what the life of Humid continental in Russia looks like