How do weather people/scientists know how much it has rained

Question

For example recently Hong Kong has had 6 inches of rain in an hour. But how do they measure this as the level of water is not equal in all areas?

In: 5

Answer 1

There are regularly placed weather station around countries. Most airports have them and if the city is large enough there could be several more. Those sation have a receptical that collect the rainfall and measures it. The measurement doesn’t take it’s reading from the ground.