Annandale is a community located in Fairfax County, Virginia. The climate in Annandale is characterized by hot, humid summers and mild winters. The area is known for its frequent rainfall, which contributes to the hydrology constituents of the region. Annandale is situated near the Potomac River and several small streams, making it a popular destination for water-based outdoor recreation, such as kayaking and fishing. The community also boasts several parks and trails, including the popular Mason District Park, which features hiking trails, picnic areas, and playgrounds. Overall, Annandale offers a diverse range of outdoor activities for residents and visitors alike.