The D.C. area’s biggest snowstorm in three years dumped 6 to 10 inches of snow on the region, shutting down government offices and school districts for two days. Reagan National recorded 7.2 inches of snow while Dulles had 5.1 inches and BWI-Marshall had 6.6 inches. The big winners were Prince Frederick, Maryland, with 11.6 inches and Independent Hill, Virginia, which reported 11 inches. Frederick and Washington counties in northern Maryland were on the low end with 4 to 5 inches.