Description : Monsoon season has started. On the first day itself it was pouring down. It rained for about 4 hours continuously. I measured 37 mm of rainfall in Pune with the help of my Rain Gauge . The average annual rainfall in India is about 115 inches (2900 mm), but it ranges from a low of about 50 inches (1270 mm) in the western Himalayan region to a high of about 160 inches (4000 mm) in the northeastern part of the country.