Hottest and Coldest Temperatures Ever in Philadelphia on December 09

On December 9th, Philadelphia experienced a range of temperatures throughout history. The highest recorded temperature for this date occurred in 1966, reaching a sweltering 70.0°F, while the coldest temperature occurred in 1960, dropping to a bone-chilling 14.0°F. On average, the temperature on December 9th is 38.36°F, with a high of 44.61°F and a low of 32.11°F. In an interesting news item from the past, in 1969, Apollo 11 launched from Cape Kennedy in Florida, beginning its historic journey to become the first manned mission to land on the Moon.