The coldest month of the year is January, with an average high temperature of 36 °F or 2.2 °C, and an average low temperature of 22 °F or −5.6 °C. Boston has seen 70 °F or 21.1 °C twice in recorded history during February. The highest recorded temperature for February was 73 °F or 22.8 °C on February 23, 2017.