Hottest and Coldest Temperatures Ever in Allentown on May 15

On May 15th in Allentown, temperatures have fluctuated over the years. The hottest recorded temperature occurred in 2018, reaching a scorching 90.0°F, while the coldest on record was a chilly 37.0°F back in 1971. On average, the temperature for this date stands at a moderate 61.08°F, with an average high of 66.27°F, and an average low of 55.90°F. Looking back at historical events, in 1971, the Unix operating system was first released, ushering in a new era of computing that continues to shape modern technology systems and advancements.