Hottest and Coldest Temperatures Ever in Pittsburgh on December 15

On December 15th in Pittsburgh, Pennsylvania, the temperature reached a maximum of 68.0°F in 1971, marking the hottest recorded temperature for that date. Conversely, the coldest recorded temperature was a chilly 3.9°F in 1958. The average temperature for December 15th stands at 33.54°F, with an average high of 42.45°F and an average low of 24.63°F. In 1971, the year when the hottest temperature was recorded, the Pittsburgh Penguins hockey team was founded, exciting sports fans and establishing a longstanding presence in the city's sports scene.