Hottest and Coldest Temperatures Ever in Philadelphia on May 12

On May 12th in Philadelphia, temperatures have reached extreme highs and lows throughout history. The record-breaking heat of 90.0°F was recorded in 1959, while a chilly 37.0°F marked the coldest temperature in 1962. Generally, the average temperature for this date stands at 62.23°F, with a daily high averaging at 67.51°F and a low at 56.94°F. In the year 1959, when Philadelphia experienced scorching heat, NASA successfully launched the Explorer 6 satellite, which captured the first-ever images of Earth from space, revolutionizing our understanding of the planet.