Garrison, Missouri is located in the Ozarks region and has a humid subtropical climate with hot summers and mild winters. The area receives an average of 45 inches of rainfall annually, with most precipitation occurring in the spring and summer months. The hydrology constituents in Garrison include the Little Niangua River, which is popular for fishing, boating, and other water sports. The surrounding forests and parks offer opportunities for hiking, camping, and wildlife watching. The Ha Ha Tonka State Park is a popular destination for visitors, featuring natural bridges, caves, and a castle ruins. Overall, Garrison offers a variety of outdoor recreation opportunities for visitors and residents alike.