Hottest and Coldest Temperatures Ever in Philadelphia on September 30

On September 30th, Philadelphia experienced a variety of weather conditions. The hottest temperature ever recorded on this date was 87.1°F back in 1953, while the coldest temperature dipped to 39.0°F in 1961. The average temperature for this day is 62.34°F, with an average high of 67.04°F and an average low of 57.64°F. In 1953, the same year the highest temperature was recorded, the iconic Philadelphia Phillies baseball team signed future Hall of Famer Robin Roberts, who went on to become one of the franchise's most successful pitchers, making his debut in the same year.