Hottest and Coldest Temperatures Ever in Philadelphia on December 15

On December 15th, Philadelphia experienced varying weather conditions. In 2015, it reached a record high of 69.1°F, whereas in 1960, it was the coldest, with a temperature of 7.0°F. On average, the temperature for this date is 37.48°F, with a high of 43.98°F and a low of 30.98°F. In the year 1960, while Philadelphia was chilly, an interesting news item that captured attention was the inauguration of John F. Kennedy as the 35th President of the United States, marking the start of a new era in American politics.