Hottest and Coldest Temperatures Ever in Allentown on April 23

On April 23rd in Allentown, the weather typically ranged between a chilly low of 47.80°F and a comfortable high of 60.45°F. Looking back at historical records, the hottest temperature ever recorded on this date was 89.1°F in 1960, while the coldest temperature was 30.0°F in 1989. The average temperature for April 23rd is 54.13°F. In 1960, besides the scorching weather, an interesting news item was the unveiling of the first-ever laser, a significant scientific achievement that paved the way for various technological advancements.