The country with the highest rainfall worldwide is the South American nation of Colombia. Based on yearly average precipitation measurements collected between 2010 and 2014, Colombia received an average annual rainfall of 127.6 inches as reported by the World Bank Group. The African nation of Sao Tome and Principe is a close second with average annual rainfalls during the same time period reported as 126 inches.Know More
Precipitation, or rain, is defined in meteorology as any form of water, liquid or solid, that falls from clouds. It is measured by the amount of rain water or snow collected in a cylinder-shaped plastic or metal rain gauge over a period of time. The highest recorded 12-month rainfall of 905 inches was measured in the village of Cherrapunji in Northeastern India in 1861. The town of Lloro, in Choco, Colombia, is a contender for the place with the highest rainfall on Earth because of its average annual rainfalls of about 520 inches.
Both the highest and the next to highest average rainfall countries are located within the equatorial zone. Rainfall in this region of the world is predictably greater than at higher or lower latitudes. This is because solar heating is most pronounced at the equator and evaporates much larger amounts of water into the atmosphere that return to the surface in the form of rainfall.Learn more about Rain
Convectional rainfall occurs when the warm air deflected from a landform rises and forms rain clouds. Convectional rainfall is very common in tropical areas as well as areas in southeastern England.Full Answer >
The tundra sees an average of 6 to 10 inches of rainfall each year. This number includes the melting snow in the tundra.Full Answer >
The Arab Republic of Egypt receives an average of 2 inches of rain a year. The amount of rain varies by region: the area along the Mediterranean Sea gets about 8 inches a year, while in the rest of the country, rain is very scarce.Full Answer >
A convectional rainfall diagram gives a visual representation of the process through which atmosphere produces convectional rain. The diagram starts with warming land, which heats the air above it and causes the air to expand and rise. Clouds form and rain falls as the air condenses and cools.Full Answer >