Hottest and Coldest Temperatures Ever in Washington DC on July 20

On July 20th, the weather in Washington D.C. has seen extremes, with the hottest temperature of 99.0°F recorded in 1991, and the coldest temperature of 63.0°F in 2000. The average temperature for this date is 80.51°F, with an average high of 84.12°F and an average low of 76.89°F. In the year 1991 when the highest temperature was recorded, exciting news unfolded as the internet became publicly available, revolutionizing the way people communicate and access information worldwide.