Hawaii’s climate, according to Köppen climate classification, can be characterized tropical (megathermal climate). This type of climate has every month of the year with an average temperature of 18°C or higher, with significant precipitation. Further classification of tropical climates is based on the seasonal precipitation type. As it can be seen from the graph below, Hawaii’s rainfall pattern is spectacularly diverse. Annual means range from 204 mm near the summit of Mauna Kea to 10.271 mm near Big Bog on the windward slope of Haleakalā, Maui. Therefore, the climate can be classified as tropical rainforest but even tropical savanna.