Hottest and Coldest Temperatures Ever in Allentown on August 18

On August 18th in Allentown, Pennsylvania, various temperature records have been set throughout the years. In 2002, the highest temperature ever recorded reached 95.0°F, while the coldest temperature on this date was 46.9°F back in 1981. On average, the temperature on August 18th in Allentown is around 72.59°F, with the average high being 76.39°F and the average low at 68.79°F. In 2002, not only did Allentown experience scorching heat, but it was also the year that the popular Allentown Farmer's Market celebrated its 75th anniversary, showcasing a rich history of local produce and goods.