Nature & Environment

The climate of Assam is very pleasant the sub-alpine climate prevails in the hilly area and the plains of the valley experience a humid tropical climate with heavy rainfall. The average maximum temperature that normally prevails in Assam lies between 30 degree Celsius to 33 degree Celsius during summers and 6 degree Celsius to 12 degree Celsius during winters. In Assam the heavy monsoon rain normally begins from mid June and continues up to early October with occasional dry spells.

The climatic condition of Assam  differ from the rest of the country. It is humid, tropical type in the plains and subalpine in the hills, with heavy rainfall and vegetation in green all the year round.

Assam is rich in natural resources. The natural resources of Assam may be classified under following heads – mineral, forest, water and agricultural resources. Assam has abundant mineral resources coal, petroleum; limestone and natural gas are the principal mineral resources. It is also the largest produces of crude oil in India.

Assam is famous for its abundant forest resources. A large part of Assam is covered by hills and forests. These hills and forests contain valuable trees in large quantities. These forests supply fruits, fuel and fodder. It also rich and wide variety of wildlife. It consists of many important and peculiar animals. It is said that Assam provides shelter to almost 188 species of mammals about 88 species of reptiles, 945 species of birds including migratory birds and about 128 species of fishes. Assam has as many as, 180 species of butterflies. Animals like tigers, elephants, deers, monkeys, golden-langur and most importantly the world famous are horned rhino are found in large numbers in the forests of Assam. More than two third of the world’s one horned rhino population, reside in the kaziranga National Park of Assam. The kaziranga national park, manas national park, nameri national park, orang national park and wildlife sanctuaries like pobeotra, laokhawa, chakrashila, barnadi, sonai ropai etc. and bird sanctuary like pani-sining bird sanctuary draw a large number of tourists from India and abroad.

For water resources the two principal rivers namely the brahmaputra and the barak valley with its memories tributaries irrigation facilities to the state. These also have great potential for the generation of hydro-electricity.


Rainfall in Assam is one of the highest in the world. It varies between 178 and 305 cm. All this rainfall is concentrated mainly in four months, June to September.

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