Precipitation - country data from around the world:
The average for 2014 was 1154.58 mm per year.
The highest value was in Colombia: 3240 mm per year and the lowest value was in Egypt: 51 mm per year.
Below is a chart for all countries where data are available for: Precipitation.
World bank definition: Average precipitation is the long-term average in depth (over space and time) of annual precipitation in the country. Precipitation is defined as any kind of water that falls from clouds as a liquid or a solid.