Rain has the ability to fall in the desert because it is picked up by clouds and transferred. Because the desert has very little to no water available rain must fall for the plants and animals.
rain fall
rain fall
It is classified as a desert because it averages less than 10 inches of rain every year.
less than 25 cn
Zero rain has to fall. However, if the region consistently receives over 10 inches (250 mm) of precipitation on average per year it is not considered a true desert.
Gobi Desert
Depending upon the location of the desert, rain, hail, sleet or even snow may fall in the desert.
Rain, snow, sleet and hail may fall in the desert, depending on location.
Rain, hail, snow and sleet can fall in most deserts.
a desert---a mesa is a flat topped rise or hill---mesa is Spanish for table
Mountain ranges can block the flow of humid air to the leeward side and force the rain to fall on the windward side, forming a rain shadow desert. See the above image.
Depending upon the specific desert and season of the year, a desert may receive rain, sleet, hail, graupel or snow.