The Sun Mountains in India - Arunachal Pradesh

Arunachal Pradesh ,one of the most sparsely populated states of India, covers an area of 83743 sq. Kms. This region acquired an independent political status in January 20, 1972, when it was declared as Union Territory under the name of Arunachal Pradesh. The state of Arunachal Pradesh Bill was passed by the Parliament in 1986 and with effect from February 20, 1987 Arunachal Pradesh became the 24th state of Indian Union.
The weather and the climate of Arunachal Pradesh are quite distinct from the rest of the country. The climate of the State is dominated by the Himalayan system and the altitudanal variations. The climate is highly hot and humid at the lower altitudes and in the valleys covered by swampy dense forest particularly in the eastern section, while it becomes exceedingly cold in the higher altitudes. Average temperature during the winter months range from 15 to 21 degree celsius and 22 to 30 degree celsius during monsoon.