Hottest and Coldest Temperatures Ever in Allentown on April 20

On April 20th in Allentown, the hottest temperature ever recorded was 88.0°F back in 1976, while the coldest temperature was 28.9°F in 1961. Looking at the averages, the temperature typically hovers around 54.09°F, with a high of 60.53°F and a low of 47.66°F. In a remarkable event from the past, 1976 also witnessed the United States celebrating its bicentennial, marking 200 years of independence with various nationwide events and festivities.