Hottest and Coldest Temperatures Ever in Boston on May 31

On May 31st, the weather in Boston varied between extremes. The highest temperature ever recorded on this date was 93.9°F in 2013, while the coldest temperature registered was 43.0°F back in 1961. On average, the temperature for this day stands at 64.86°F, with an average high of 69.98°F and an average low of 59.73°F. Amidst these remarkable temperature fluctuations, an interesting news item from 1961 is worthy of note. The year witnessed the historic launch of the first human astronaut, Yuri Gagarin, who successfully completed a single orbit around the Earth, marking a major milestone in space exploration.