Hottest and Coldest Temperatures Ever in Allentown on August 21

On August 21st, the weather in Allentown, Pennsylvania, varied with a wide range of temperatures throughout the years. The hottest recorded temperature on this date was 93.0°F in 1995, while the coldest was 45.0°F in 2000. The average temperature for August 21st is 71.19°F, with an average high of 75.47°F and an average low of 66.91°F. Looking back, an interesting news item from one of these years is the 1995 launch of the online auction site eBay, which would revolutionize the way people buy and sell items globally.