Wauseon, Ohio is a small city located in Fulton County, in the northwestern part of the state. The climate in Wauseon is considered temperate, with warm summers and cold winters. Average temperatures range from the high 20s°F (-2°C) in winter to the high 80s°F (around 30°C) in summer. Precipitation is fairly evenly spread throughout the year, with slightly higher amounts during the summer months.

Wauseon is surrounded by beautiful natural landscapes, offering several outdoor recreation opportunities. The city is located near the Tiffin and Maumee rivers, which provide excellent opportunities for fishing, boating, and other water-related activities. The area is also home to several parks and nature reserves, such as Oak Openings Preserve Metropark and Harrison Lake State Park, where visitors can enjoy hiking, picnicking, camping, and wildlife observation.

In terms of hydrology constituents, Wauseon benefits from its proximity to the Maumee River, which is a major tributary of Lake Erie. The river supports a diverse aquatic ecosystem and is an important water resource for the region. Overall, Wauseon offers a pleasant environment for outdoor enthusiasts, with its mild climate and access to waterways and natural areas.