Hottest and Coldest Temperatures Ever in Boston on May 27

On May 27th in Boston, the weather reached a scorching temperature of 90.0°F in 1959, marking the hottest recorded temperature for this date. Conversely, the coldest recorded temperature was 43.0°F in 1967. The average temperature on May 27th is 61.30°F, with an average high of 66.36°F and an average low of 56.24°F. An intriguing news item from the years shared is that in 1959, the first American astronauts, Alan Shepard and Virgil Grissom, were selected to participate in NASA's Mercury program, paving the way for future space exploration endeavors.