Hottest and Coldest Temperatures Ever in Philadelphia on October 11

On October 11th in Philadelphia, the weather experienced a range of temperatures. The record high of 84.9°F occurred in 1954, while the record low of 28.0°F was recorded in 1964. The average temperature for this date stands at 58.68°F, with an average high of 64.26°F and an average low of 53.10°F. In a news item from the years mentioned, it was reported that in 1954, the United States successfully launched its first nuclear-powered submarine, the USS Nautilus, marking a significant technological advancement in naval warfare.