Hottest and Coldest Temperatures Ever in Philadelphia on August 23
On August 23rd in Philadelphia, temperatures have ranged from a scorching 93.0°F in 1968 to a chilly 53.1°F in 1952. The average temperature for this date stands at a pleasant 73.22°F, with an average high of 76.79°F and an average low of 69.66°F. Looking back to 1968, an interesting news item was the completion of the world's first successful heart transplant performed by Dr. Christiaan Barnard in South Africa, marking a significant milestone in medical history.