Find out more about types of precipitation - including rain, snow, sleet and hail - and what causes it to fall.
We also take a look at where gets the most rain in the UK and what causes flash flooding.
Find out how much rain we get in the UK and where gets the most rainfall.
Find out what causes flash flooding and why it can be so dangerous.
There are three different ways of turning moist air into cloud, so that it rains or snows.
Find out more about what to do in severe rain in our infographic.
Petrichor is at its simplest, the smell of rain. The words comes from the Greek words 'petra' meaning stone and 'ichor' which in Greek mythology refers to the golden fluid that flows in the veins of the immortals.
Last updated: 4 December 2013