How do you measure rainfall?

I just saw Cecil’s explanation how they measure snowfall…
They pretty much just stick a ruler into the snow.
But how do they measure rainfall?

Um… :rolleyes:

They stick a ruler in a can. It’s called a rain gauge.

It can be a little more complicated than that. The official rain gauges have a funnel on top connected to a smaller graduated-cylinder-like measuring part. This lets them be much more precise in their measurements.

See: . It’s striking how much those pictures look like “a ruler in a can” though. :slight_smile: