Hottest and Coldest Temperatures Ever in Boston on July 27

On July 27th in Boston, the temperature reached a maximum of 97.0°F in 1963, making it the hottest recorded on this date. Conversely, in 2001, it was the coldest with a temperature of 55.9°F. The average temperature for this day is 73.91°F, with an average high of 78.44°F and an average low of 69.39°F. In 1963, besides the scorching heat, the United States and the Soviet Union signed the Limited Test Ban Treaty, prohibiting nuclear weapon tests in the atmosphere, outer space, and underwater, showcasing a notable event that year.