rain gauge
rain gage
pluviometer
udometer

It is easier to use your own rain gauge.

The weather station began using a rain gauge in 1836.

A rain gauge is a helpful tool to determine how much water your plants have received.

Set a rain gauge in an open area of the garden to learn how much water the garden receives each week.

A commercial rain gauge is calibrated and easy to read.

You can have the answer immediately by getting a rain gauge, an inexpensive item (about $8 to $28).

We have what might be called a big-gulp rain gauge, and it registered no such thing.

It would be no more difficult than monitoring a rain gauge, he said.

If liquid, it can be measured using a rain gauge.

An old housing for measuring equipment and a rain gauge can be seen to the east of the lighthouse.