Hottest and Coldest Temperatures Ever in Allentown on June 15

On June 15th in Allentown, historical weather records show that the hottest temperature ever recorded was 95.0°F in 1957, while the coldest temperature reached 45.0°F in 1997. The average temperature for this date is 69.91°F, with an average high of 75.15°F and an average low of 64.67°F. Looking back to 1957, it is interesting to note that this was also the year when the first artificial satellite, Sputnik 1, was launched into space by the Soviet Union, marking the beginning of the Space Age.