Hottest and Coldest Temperatures Ever in Boston on July 20

On July 20th, Boston experienced varying temperatures throughout its history. In 1991, the city recorded its hottest temperature ever at 99.0°F, while 1965 marked the coldest temperature of 57.9°F. The average temperature for this date is 74.88°F, with an average high of 79.89°F and an average low of 69.88°F. In 1991, the same year of the record high, an interesting news item was that Soviet President Mikhail Gorbachev survived an attempted coup d'état, showing the resilience of both the weather and world events during this time.