Hottest and Coldest Temperatures Ever in Philadelphia on August 31

On August 31st in Philadelphia, the weather records show that the hottest temperature ever recorded was 100.9°F in 1953, while the coldest temperature was 45.0°F in 1965. This date typically sees an average temperature of 74.83°F, with an average high of 78.89°F and an average low of 70.78°F. In 1953, the year when the highest temperature was recorded, the news reported a groundbreaking discovery in the field of DNA structure by scientists James Watson and Francis Crick, revealing the double helix structure. Their discovery revolutionized the understanding of genetic material and paved the way for advancements in genetics and molecular biology.