Despite January’s frigid start, 2018 landed within the top-five warmest years on record at the airport, tying 1998 with an average temperature of 67.9°. This is the fourth consecutive year that average temperatures have landed within the top five warmest on record. 1990 still reigns supreme, though, as the warmest recorded year with an average temperature of 69.3°.

Data for this post is sourced from a compilation of records by the Southeast Regional Climate Center as well as the National Weather Service forecast office in Charleston, SC. Records at the North Charleston climate site begin in 1938.