Hottest and Coldest Temperatures Ever in Philadelphia on January 13
On January 13th in Philadelphia, the temperature varied from a record high of 66.0°F in 1995 to a record low of 5.0°F in 1977. The average temperature for this date is 33.42°F, with an average high of 40.87°F and an average low of 25.96°F. In 1995, the year the highest temperature was recorded, an interesting news item was the release of Microsoft's Windows 95 operating system, which introduced significant advancements in personal computing.