Hottest and Coldest Temperatures Ever in Allentown on May 24

On May 24th in Allentown, the weather has seen extremes throughout the years. In 1964, the highest temperature ever recorded reached 89.1°F, while 1963 had the coldest temperature of 34.0°F. On average, temperatures for this date hover around 63.91°F, with a high of 69.07°F and a low of 58.75°F. Amidst these weather records, an interesting news item from the years mentioned is that in 1963, the Zip Code system was introduced as a means to facilitate faster and more accurate mail delivery across the United States.