Hottest and Coldest Temperatures Ever in Boston on July 23

On July 23rd in Boston, the weather varied from the hottest recorded temperature of 100.0°F in 1952 to the coldest recorded temperature of 54.0°F in 1992. The average temperature for this date is 74.05°F, with an average high of 78.94°F and an average low of 69.15°F. In 1952, when the temperature reached its peak, an interesting news item is that the United States successfully detonated the first hydrogen bomb, known as "Ivy Mike," in the Marshall Islands during ongoing nuclear weapons testing.