Hottest and Coldest Temperatures Ever in Philadelphia on May 15

On May 15th in Philadelphia, the weather varied between extremes over the years. In 2004, the city experienced scorching heat, setting a record of 89.1°F, while in 1966, it faced chilly conditions, recording a low of 39.0°F. On average, the temperature for this date settles at a comfortable 62.98°F. Interestingly, during these years, news reports highlighted significant milestones and events that impacted the nation. In 2004, Facebook was launched by Mark Zuckerberg, revolutionizing social networking. In 1966, The Beach Boys released their iconic album, 'Pet Sounds,' which went on to influence the music scene for years to come.