Hottest and Coldest Temperatures Ever in Philadelphia on December 17

On December 17th in Philadelphia, the temperature reached a maximum of 64.9°F in 2000, marking the hottest recorded temperature for this date. Conversely, the coldest temperature ever recorded was 8.1°F back in 1951. The average temperature for December 17th in Philly is 36.10°F, with an average high of 42.87°F and an average low of 29.33°F. In light of this weather data, it's worth mentioning that in 2000, the same year the highest temperature was recorded, Philadelphia experienced a historic snowstorm that dumped 30.7 inches of snow on the city, causing widespread disruptions.