Hottest and Coldest Temperatures Ever in Philadelphia on May 17

On May 17th in Philadelphia, the weather historical records reveal a range of temperatures. In 1974, the city experienced its hottest temperature ever recorded at a scorching 91.9°F, while the coldest temperature of 37.0°F was recorded in 1956. On average, this date tends to have a pleasant temperature of 63.25°F, with a high temperature of 68.07°F and a low temperature of 58.44°F. As an interesting news item from those years, in 1974, the United States celebrated its first Earth Day, a movement aimed at promoting environmental protection and raising awareness about ecological issues.