West Bengal receives an average annual rainfall of approximately . However, this figure masks dramatic geographical differences, ranging from over 3,500 mm in the northern Himalayan foothills to roughly 1,000–1,250 mm in the western plateau. Seasonal Distribution
West Bengal, often described as the "gateway to the East," is a land of geographical extremes. From the towering peaks of the Himalayas in the north to the mangrove forests of the Sundarbans in the south, the state’s topography is diverse. This diversity dictates a complex and fascinating rainfall pattern. average rainfall in west bengal
Hot and humid with sudden thunderstorms known as Kalbaishakhi . Regional Variations West Bengal receives an average annual rainfall of
Driest period; light rain possible due to western disturbances. March – May this figure masks dramatic geographical differences