Hottest and Coldest Temperatures Ever in Boston on December 29

On December 29th in Boston, weather conditions fluctuate widely, with the hottest-ever recorded temperature standing at 73.0°F in 1984, and the coldest-ever temperature reaching 2.1°F in 2017. The average temperature for this date is 33.70°F, with an average high temperature of 40.60°F and an average low temperature of 26.79°F. Amidst these temperature extremes, in 1984, the city celebrated the completion of the Ted Williams Tunnel, connecting Boston to Logan International Airport and alleviating congestion for travelers.