Rain Gauge

             The Rain Gauge is used to measure rainfall. A Rain Gauge should be placed 30 cm above the ground in an open area where there are no trees or buildings to block the rain, and where only rainfall can enter the rain gauge. The rain collected in the rain gauge is usually measured every morning with a measuring cylinder at a fixed time. The measurement constitutes the daily rainfall and is recorded in millimetres(mm). By adding up the amount of rain collected in a month, we get the monthly rainfall. The total amount of rainfall collected over 12 months is the annual rainfall.