Hottest and Coldest Temperatures Ever in Washington DC on August 15
On August 15th in Washington D.C., the weather has seen extreme temperatures over the years. In 1988, the city experienced scorching heat with the hottest recorded temperature of 102.9°F, while in 1963, it faced a chilly spell with a record low of 51.1°F. The average temperature for this date is 77.33°F, with an average high of 80.77°F and an average low of 73.90°F. In a fascinating news item from 1963, during the Cold War, the hotline communication link between the United States and the Soviet Union was first established, aiming to reduce the risk of accidental nuclear war.