Centreville, Virginia experiences a humid subtropical climate with hot summers and mild winters. The area receives an average of 44 inches of rain per year, and the hydrology constituents include streams and creeks that flow into the Potomac River. Centreville offers several outdoor recreation opportunities, including the 5,000-acre Bull Run Regional Park, which features hiking trails, campgrounds, and picnic areas. The nearby 18-mile Washington and Old Dominion Trail is a popular destination for hiking, biking, and horseback riding. Additionally, the Bull Run Marina offers boating and fishing opportunities on the Occoquan Reservoir.