Hottest and Coldest Temperatures Ever in Allentown on October 21

On October 21st in Allentown, the weather typically sees an average temperature of 52.78°F, with an average high of 58.12°F and an average low of 47.45°F. However, historical weather records reveal that the highest ever recorded temperature for this date was a sweltering 82.0°F in 1963, while the coldest temperature was a chilly 23.0°F in 1972. Looking back at the year 1963, an interesting news item is that Valentina Tereshkova became the first woman to travel into space as part of the Vostok 6 mission.