The United Kingdom experiences a lot of frontal rainfall, as it is associated with the movement of depressions over the country.

Frontal rainfall

Stage 1.
An area of warm air meets an area of cold air.

Stage 2.
The warm air is forced over the cold air

Stage 3.
Where the air meets the warm air is cooled and water vapour condenses. 

Stage 4.
Clouds form and precipitation occurs

Find out about convectional and relief rainfall.