Hottest and Coldest Temperatures Ever in Washington DC on May 17

On May 17th in Washington D.C., records show that the highest temperature ever recorded was 91.9°F in 1974, while the coldest temperature was 39.9°F in 1956. The average temperature for this date is 65.82°F, with an average high of 70.88°F and an average low of 60.75°F. In 1974, Washington D.C. experienced its hottest May in 100 years, with temperatures soaring above the average and breaking records across the region.