Wednesday marked the summer solstice for the Northern Hemisphere, the day with the longest period of sunlight and the first official day of summer. A heat advisory has been issued for the Washington area through Friday because of expected high humidity levels and temperatures.
June 20, 2012 At 6:30 a.m., the temperature was already 75 degrees on the first day of summer in the Washington area, as runners and bikers took to the Mount Vernon Trail in Arlington. Arlington resident Jane Campbell, not pictured, who runs the trail daily, said, “I'm out here at 6:30 in the morning because I don't want to be out here at noon, when it's going to be in the 90s. It may be warm with a little bit of humidity, but it beats midday heat.” Jahi Chikwendiu/The Washington Post Buy Photo