Hottest and Coldest Temperatures Ever in Philadelphia on February 14

On February 14th in Philadelphia, weather records show that the city has experienced a wide range of temperatures. In 1990, it reached the highest temperature ever recorded at 66.9°F, while in 1979, the coldest temperature dipped to a chilling 1.9°F. The average temperature for this date is 33.47°F, with an average high of 40.01°F and an average low of 26.94°F. In the news that year, 1979, the iconic Three Mile Island nuclear accident occurred in Pennsylvania, just a few miles away from Philadelphia, causing significant concern and sparking conversations around nuclear power safety.