Hottest and Coldest Temperatures Ever in Boston on June 18

On June 18th, Boston experienced varying temperatures throughout history. The hottest recorded temperature for this date was a scorching 91.9°F in 1993, while the coldest temperature occurred in 1954, dropping down to 48.9°F. Typically, the average temperature on June 18th stands at 68.82°F, with an average high temperature of 73.86°F and an average low temperature of 63.79°F. In the year 1993, apart from the heat, Bostonians may have also been captivated by the groundbreaking announcement that the World Wide Web was introduced to the public, revolutionizing the way we access information and communicate with the world.