 Its sea-level elevation, coastal location, position just above the Tropic of Cancer, and proximity to the Gulf Stream shape its climate.With January averaging , winter features warm temperatures; cool air usually settles after the passage of a cold front, which produces much of the little amount of rainfall.Lows sometimes fall to or below , with an average 3 such occurrences annually, but rarely ; from 1981 to 2010, temperatures reached that level in only eight calendar years.