While Antarctica contains the area with the lowest average precipitation worldwide, the individual country with the lowest average annual precipitation is Chile. The city of Arica in Chile has the lowest average rainfall of any city worldwide at just 0.03 inch per year.
Arica is surrounded by the Atacama Desert, some parts of which have not received rainfall in more than 500 years. The Atacama is surrounded by the Andes Mountains and the Chilean Coast Range. These mountain ranges block moisture and rain clouds from reaching the desert. Chile is still wetter then the Dry Valleys in Antarctica, where average annual precipitation is 0 inches per year.Learn More
Convection rainfall is what happens when the sun heats a water source to the point that water turns into vapor and rises. By the time it reaches the condensation level, the vapor is usually cool enough to turn back into water and fall in the form of rain.Full Answer >
Cyclonic rainfall, also known as frontal rain, is caused when two air masses of different temperatures meet. Warm air and cool air don´t mix, as they have different densities. As the warm air rises over the heavier cool air, it cools and creates a front; clouds form and produce rain.Full Answer >
The tropical wet climate is a category of the tropical moist global climate. All of the global tropical climate zones are found 15 to 25 degrees north and south of the equator.Full Answer >
Fog forms when water droplets condense to form fog close to the ground. The water droplets are formed when water vapor bonds with condensation nuclei. Water evaporation can occur from bodies of water, wind, precipitation and atmospheric heating.Full Answer >