Hottest and Coldest Temperatures Ever in Philadelphia on May 05

On May 5th in Philadelphia, the historical weather data reveals a range of temperatures. The hottest temperature ever recorded on this date was 88.0°F in 1955, while the coldest temperature was 33.1°F in 1966. On average, the temperature on this day is 59.47°F, with a high of 64.46°F and a low of 54.48°F. In a noteworthy event from the past, it was in 1955 that the renowned American scientist Jonas Salk developed the first successful polio vaccine, bringing hope to millions worldwide and significantly contributing to the eradication of the disease.