Reagan National Airport

The latitude of Washington, DC is 38°53′42.4″N. The longitude is 77°02′12.0″W. The city is located on the north bank of the Potomac River and is bordered by the states of Virginia to the southwest and Maryland to the other sides. Washington has a humid subtropical climate, Spring and fall are mild, with low humidity, while winter brings sustained cool temperatures and annual snowfall averaging 16.6 inches (420 mm).^[49] Average winter lows tend to be around 30 °F (-1 °C) from mid-December to mid-February. Blizzards affect Washington on average once every four to six years. Temperatures range from 27 °F in winter to 88 °F in summer.