How much rain does a desert get in a year?

Answer 1

Very little.

Answer 2

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Even the Mojave Desert averages 5"/year. I can't find any desert in the US that doesn't get SOME rainfall. Even the driest desert in the world, ("The Atacama of northern Chile is the driest, declares the United States Geological Survey.") gets 1/2" of moisture/year from fog dripping. "The precipitation (moisture equivalent to rain) in Atacama averages less than a half inch (1 centimeter) per year from fog. Measurable rainfall (more than a millimeter of rain) occurs every five to 20 years and heavy rains fall only two to four times a century. No vegetation grows here." There are cacti that are dormant for years, then when a flooding rain comes, they bloom. Also wildflowers: "Although it is an annual event, the wildflower season is never the same from one year to the next. Weather conditions play an integral role in the outcome of each wildflower season. If the winter has too much or little rain, or if the temperature is too warm or cold, the seeds of desert annuals will remain dormant or bloom in fewer numbers. Only when the conditions are near-perfect will you witness a spectacular wildflower showing, a time when an abundance of aromatic colors fill each landscape with a breathtaking effect. Due to El Niño and the unusual weather conditions, experts are predicting that the 1998 wildflower season may be spectacular. A decade may pass with less than fruitful wildflower displays, but when the conditions are just right, the wildflowers fill the landscapes in a phenomenal riot of color. It is difficult to pinpoint the best time to visit the desert during the spring wildflower season, which generally occurs from March through June. But rest assured, no matter when you visit the desert, there are always plants in bloom. Within the last three months, I have seen Mojave Aster, Banana Yucca, Creosote, Brittlebush, Primrose, Lupine and a few other common wildflowers in bloom. The recent rain and warm weather has spurred an early bloom for some plant species."

Answer 3

By most climatologists' definition, a desert is an environment receiving less than 25 cm of precipitation per year. By that definition much of the Arctic and Antarctic are deserts!

The driest desert in the world is the Atacama desert in northern Chile. There are places there which have never recorded any rainfall, and geologists estimate that some parts of the Atacama have not received any measurable rainfall for over one thousand years!

Answer 4

It does not rain in Atacama dessert or Sahara dessert because Dessert is a typically sweet course that concludes a meal. Desserts are usually smaller than a plate and therefore not large enough for rain clouds to form on them. Although it does not rain in desserts they are usually sweet and tasty. Be warned though if you eat enough of them you will get the size of Krusty Alley.

Answer 5

Deserts are biomes that receive less than 25cm of rainfall a year.

Answer 6

Which desert?