Hottest and Coldest Temperatures Ever in Philadelphia on July 09

On July 9th in Philadelphia, the weather is typically warm with an average temperature of 76.85°F. The highest temperature on record for this date was a scorching 100.0°F in 1993, while the coldest temperature ever recorded was a chilly 53.1°F in 1963. Expect the day to be hot, with an average high temperature of 80.81°F, and a relatively mild night with an average low temperature of 72.88°F. In 1993, the same year when the highest temperature was recorded, the Mosaic web browser was released, marking a significant milestone in the development of the internet as we know it today.