The worlds heaviest rainfall area. Cherrapunji's yearly rainfall average stands at 11430 ;mm (450 in).Cherrapunjee, is a town in East Khasi Hills district in the Indian state of Meghalaya. It is credited as being the wettest place on Earth. However, nearby Mawsynram has more rainfall nowadays.Causes of High Rainfall Cherrapunjee receives rains from the Bay of Bengal arm of the Indian Summer Monsoon. The monsoon clouds fly unhindered over the plains of Bangladesh for about 400 km. Thereafter, they...