Roy is a small town located in Pierce County, Washington. It has a mild climate characterized by warm summers and cool winters. Summers in Roy are typically dry with average temperatures ranging from the mid-70s to low 80s Fahrenheit. Winters are damp and cool, with temperatures averaging in the mid-40s to low 50s Fahrenheit. Rainfall is evenly distributed throughout the year, with an average of 55 inches annually.

The hydrology constituents in Roy are primarily influenced by the nearby Nisqually River, which flows through the town. The river provides opportunities for fishing and boating, attracting outdoor enthusiasts. The area also boasts several lakes and ponds, such as Clear Lake and Harts Lake, offering additional recreational activities like swimming, kayaking, and birdwatching.

Roy is surrounded by natural beauty, with abundant forests and parks. The nearby Mount Rainier National Park provides hiking, camping, and wildlife viewing opportunities. Additionally, the town is close to the Nisqually National Wildlife Refuge, a haven for birdwatching and exploring the diverse ecosystems.

Overall, Roy, Washington offers a pleasant climate, diverse hydrology constituents, and ample opportunities for outdoor recreation, making it an appealing destination for nature lovers and adventure seekers.