Naval Research Laboratory
Corporate research laboratory
4555 Overlook Ave SW, Washington, DC 20375
In Washington, D.C., the summers are warm and muggy, the winters are very cold, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 29°F to 88°F and is rarely below 17°F or above 96°F.
Based on the tourism score, the best times of year to visit Washington, D.C. for warm-weather activities are for the entire month of June and from mid August to early October.
Washington, DC, the U.S. capital, is a compact city on the Potomac River, bordering the states of Maryland and Virginia. It’s defined by imposing neoclassical monuments and buildings – including the iconic ones that house the federal government’s 3 branches: the Capitol, White House and Supreme Court. It’s also home to iconic museums and performing-arts venues such as the Kennedy Center.