The climatic condition of West Bengal is as diverse as its topography and landforms of the state. The diverse landform includes the snow capped Mountains to the Terrai regions and the forests of Dooars, the Plateau regions, the Delta region and the Coastal plains. Thus it is freezing in the north, a little less cold in the terrai, humid conditions along the coastline and plain conditions in the remaining parts of the state.
Rice and potato are considered to be the principal food crops of West Bengal. It is the largest producer of rice in India and the second largest producer of potato due such climatic conditions. Tea is also a major cash crop which grown extensively in northern part of the state near the Darjeeling area, due the climatic conditions being appropriate for tea. The tea produced here is called Darjeeling Tea and is famous all over the world. Due to the tropical climate here in West Bengal it helps in growing fruits like Mango, Pineapple, Banana, Litchi, Guava and Papaya. Jackfruit, Bel/Bael (Bengal Quince), Jamun and Kul (Jujube) are some of the very exclusive fruits produced in Bengal due to the suitable weather conditions here in Bengal.
Talking about the weather, West Bengal witnesses 5 forms of seasons namely the Spring, the Summer, the Winter, the Monsoon and the Autumn, but majorly the Summer, Monsoon and Winter.
Before the start of the big fat Summer here in West Bengal its witnesses tiny bit of a Spring especially in the northern parts of the state. The Summers extend from March to almost August. The maximum temperatures rises up to 45 degree Celsius and the minimum in Summers are 20 degree Celsius. Summers are mostly humid while cool breeze from the bay of Bengal eases everything well. The thunder storms known as “Norwester” are often rises in Bengal, which are commonly referred as “Kaalboishakhi” in Bengal. The season for Monsoon is generally from July to September. The annual average rainfall is about 175 cm. while its rains heavily about 250 cm. in the northern parts of Bengal. Low pressure in Bay of Bengal often creates storms in the coastal regions in Bengal. Autumn is not much experienced in Bengal, generally short. But the arrival of autumn lowers the heat. Durga Puja in Bengal is celebrated in this season generally. From November to February this state experiences the winter season. The Winter season is generally cold to mild over the plains with average ranging of temperature from 9°C to 16°C. There is no humidity during this season. The northern part of Bengal generally witnesses severe cold and freezing temperatures. Darjeeling, Tiger Hill, Sandakhphu, Phalut, Lava, Rishyap and some other surrounding areas of Darjeeling are generally receives moderate to heavy snowfalls during the Winters.