Highland, Ohio has a humid continental climate with four distinct seasons. Summers are warm and humid, while winters are cold and snowy. The area receives an average of 40 inches of rainfall annually, with the majority falling in the spring and summer months. The hydrology constituents in the area include the Scioto River and its tributaries, as well as several small lakes and ponds. Outdoor recreation opportunities in Highland include hiking and biking on the many trails in the area, fishing and boating on the local lakes and rivers, and hunting in the nearby state parks and forests. The Highland County Fairgrounds also hosts a variety of events and festivals throughout the year.