Hottest and Coldest Temperatures Ever in Boston on December 18

On December 18th in Boston, extreme temperature ranges have been witnessed throughout history. The record-breaking hottest temperature stands at 61.0°F in 1990, while the coldest recorded temperature plummeted to 9.0°F in 1979. On average, this date brings a temperature of 32.31°F, with a high of 38.85°F and a low of 25.76°F. Notably, in 1979, when Boston experienced its coldest temperatures, the Sony Walkman was introduced to the public, revolutionizing the way people listen to music on the go.