Hottest and Coldest Temperatures Ever in Boston on October 15

On October 15th in Boston, the weather can vary greatly based on historical records. In 2014, the temperature soared to a scorching 81.0°F, making it the hottest day ever recorded on this date. However, in 1979, the city experienced a chilling low of 34.0°F, marking it as the coldest temperature ever recorded. On average, Boston sees a temperature of 55.71°F on October 15th, with a high of 61.09°F and a low of 50.33°F. Interestingly, in the year 1979 when the coldest temperature was recorded, the Boston Celtics won their 12th NBA championship, solidifying their dominance in basketball history.