Delaware, Ohio is located in the Midwestern United States and experiences a humid continental climate. Summers are warm, with temperatures averaging around 80°F, while winters are cold, with temperatures averaging around 30°F. The area receives an average of 39 inches of rainfall each year and experiences occasional flooding due to its proximity to the Olentangy River. The river also provides opportunities for outdoor recreation, including fishing and kayaking. Delaware State Park is located nearby and offers hiking trails, camping, and a beach for swimming. The city is also home to several parks and green spaces, including Mingo Park and Smith Park, which offer playgrounds, sports fields, and picnic areas.