Hottest and Coldest Temperatures Ever in Washington DC on June 18

On June 18th, Washington D.C experienced fluctuating weather conditions throughout history. The record high, set in 1957, reached an scorching 96.1°F, while the record low, recorded in 1965, plunged to a chilly 51.1°F. Typically, the average temperature on this date is 74.32°F, with a daily high of 78.94°F and a low of 69.71°F. In an interesting news item from these years, in 1957, the United States Surgeon General declared that smoking cigarettes causes lung cancer, marking a significant milestone in public health awareness.