Dillonvale is a small village located in Jefferson County, Ohio. The climate in Dillonvale is classified as humid continental, with four distinct seasons. Summers are warm and humid, while winters are cold and snowy. The village is situated near the Ohio River, which provides a source of hydrology constituents. Outdoor recreation opportunities in Dillonvale include fishing, boating, and camping at nearby state parks such as Tappan Lake and Beaver Creek State Park. The village also has several parks and hiking trails for residents and visitors to enjoy.