Hottest and Coldest Temperatures Ever in Philadelphia on April 24
On April 24th in Philadelphia, the temperature fluctuated between extremes over the years. The highest temperature ever recorded on this date was a scorching 86.0°F back in 1960, while the chilliest was a frigid 34.0°F in 1989. On average, the temperature settled at 55.46°F, with the high averaging at 60.67°F and the low at 50.26°F. As a fascinating historical tidbit, in 1960, on the same day that Philadelphia experienced record-breaking heat, the first ever successful laser was demonstrated by Theodore Maiman, marking a significant breakthrough in technology.