Hottest and Coldest Temperatures Ever in Boston on August 25

On August 25th in Boston, the hottest recorded temperature occurred in 2007, reaching a scorching 96.1°F. In contrast, the coldest temperature experienced on this date was 54.0°F back in 1963. The average temperature for August 25th stands at 69.61°F, with an average high of 74.26°F and an average low of 64.96°F. In the year 1963 when Boston experienced its coldest August 25th temperature, notably, Martin Luther King Jr. delivered his iconic "I Have a Dream" speech during the historic March on Washington on August 28th.