Hottest and Coldest Temperatures Ever in Allentown on April 29

On April 29th in Allentown, temperatures have varied throughout history, ranging from a scorching 86.0°F in 1974 to a chilly 30.9°F in 2001. However, the average temperature for this date stands at a comfortable 56.11°F, with an average high of 62.48°F and an average low of 49.75°F. In 1974, coinciding with the year of the record high temperature, an interesting news highlight was the unveiling of the first commercially available personal computer, the Altair 8800, by Micro Instrumentation and Telemetry Systems.