Hottest and Coldest Temperatures Ever in Allentown on April 27

On April 27th, Allentown experienced various weather conditions throughout the years. The hottest temperature recorded on this date was 91.9°F in 1990, while the coldest temperature dropped to 30.9°F in 1963. On average, the temperature hovers around 54.76°F, with a typical high of 61.14°F and a low of 48.38°F. Interestingly, in 1963, during the colder climate, astronaut L. Gordon Cooper completed a successful 22-orbit space flight aboard the Faith 7 spacecraft, marking the final mission of the Project Mercury program.