Hottest and Coldest Temperatures Ever in Philadelphia on March 18

On March 18th, Philadelphia experienced a range of temperatures throughout its history. The highest recorded temperature on this date was 78.1°F in 1989, while the coldest temperature recorded was 15.1°F in 1967. On average, the temperature for this date is 41.42°F, with a high of 47.86°F and a low of 34.99°F. In an interesting news item from the past, in 1989, the same year with the highest recorded temperature, the "World Wide Web" was invented by Sir Tim Berners-Lee, revolutionizing the way information is shared and accessed globally.