Hottest and Coldest Temperatures Ever in Allentown on December 26

On December 26 in Allentown, weather history reveals a range of temperatures. In 1964, it reached the hottest temperature ever recorded at 64.9°F, while in 1980, the coldest temperature plunged to -2.9°F. The average temperature for this date is 31.87°F, with an average high of 39.31°F and an average low of 24.43°F. In the midst of all this, an interesting news item from those years is the 1980 eruption of Mount St. Helens in Washington, which had far-reaching environmental consequences, including altering weather patterns across the United States.