The southern and northern regions of the country are two distinct climatic areas. On the coast, the average annual rainfall ranges between 250 and 400 cm (100 and 160 in); in the inland south, between 150 and 250 cm (60 and 100 in). The western slopes of Mt. Cameroon receive 600 to 900 cm (240 to 350 in) a year. The mean temperature ranges from 22° to 29° C (72° to 84° F ) along the coast. In the south there are two dry seasons, November to March and June to August. The northern part of the country has a more comfortable climate. Total rainfall drops from 150 cm (60 in) a year in the central plateau to 60 cm (24 in) northward near Lake Chad, and the mean temperature ranges from 23° to 26° C (73° to 79° F ), although it can reach 50° C (122° F ) in the far north. The dry season in the north is from October to March.