Hottest and Coldest Temperatures Ever in Philadelphia on June 29

On June 29th in Philadelphia, the weather has seen extremes over the years. The hottest temperature ever recorded on this date was a scorching 98.1°F in 1991, while the coldest temperature dipped to a chilly 55.9°F in 1970. The average temperature for this date stands at 75.39°F, with an average high of 80.81°F and an average low of 69.97°F. In a fascinating historical tidbit, during the same year as the coldest temperature, 1970, the inaugural Earth Day was celebrated, marking the beginning of a global movement advocating for environmental protection and sustainability.