The Northern Territory has two distinctive climate zones. The northern end, including Darwin, has a tropical savannah climate (Köppen "Aw") with high humidity and two seasons, the wet (October to April) and dry season (May to September). During the dry season nearly every day is warm and sunny, and afternoon humidity averages around 30%. There is very little rainfall between May and September. In the coolest months of June and July, the daily minimum temperature may dip as low as , but very rarely lower, and frost has never been recorded.