Bihar - Geography and Climate

Geography and Climate

. Bihar has a diverse climate.Its temperature is subtropical in general, with hot summers and cool winters. Bihar is a vast stretch of fertile plain. It is drained by the Ganges River, including its northern tributaries Gandak and Koshi, originating in the Nepal Himalayas and the Bagmati originating in the Kathmandu Valley that regularly flood parts of the Bihar plains. The total area covered by the state of Bihar is 94,163 km2 (36,357 sq mi). the state is located between 21°-58'-10" N ~ 27°-31'-15" N latitude and between 83°-19'-50" E ~ 88°-17'-40" E longitude. Its average elevation above sea level is 173 feet (53 m).

The Ganges divides Bihar into two unequal halves and flows through the middle from west to east. Other Ganges tributaries are the Son, Budhi Gandak, Chandan, Orhani and Phalgu. Though the Himalayas begin at the foothills, a short distance inside Nepal and to the north of Bihar, the mountains influence Bihar's landforms, climate, hydrology and culture. Central parts of Bihar have some small hills, for example the Rajgir hills. To the south is the Chota Nagpur plateau, which was part of Bihar until 2000 but now is part of a separate state called Jharkhand.

Bihar is mildly cold in the winter, with the lowest temperatures being in the range from 2–10 °C (36–50 °F). Winter months are December and January. It is hot in the summer, with average highs around 35–40 °C (95–104 °F). April to mid June are the hottest months. The monsoon months of June, July, August, and September see good rainfall. Mid September, October, November, February, and March have a pleasant climate.