Hottest and Coldest Temperatures Ever in Philadelphia on April 13

On April 13th in Philadelphia, temperatures historically range from a chilly low of 28.0°F in 1990 to a scorching high of 89.1°F in 1977. The average temperature for this date is 51.29°F, with an average high of 57.38°F, and an average low of 45.20°F. Looking back to 1977, one interesting news item from that year is that the original Star Wars movie was released, captivating audiences and becoming a cultural phenomenon.