Hottest and Coldest Temperatures Ever in Allentown on September 12

On September 12th in Allentown, historic weather data reveals impressive extremes. In 1952, temperatures reached a scorching 91.0°F, marking the hottest temperature ever recorded for this date. Conversely, in 1967, the city experienced a chilly low of 37.0°F, representing the coldest temperature on record. The average temperature for September 12th is a comfortable 66.85°F, with an average high of 71.08°F and an average low of 62.61°F. In the midst of these weather fluctuations, it is interesting to note that the year 1952 also witnessed a breakthrough in communication technology with the first successul trial of the first practical telephone answering machine by Bell Labs.