Essentially, zero.
Snows density varies tremendously so volume doesnt always relate to weight very well. Fresh snow is higher in volume where, old snow may have been compacted and has less volume
water and snow
Yes, red dust can be picked up from desert regions and get into the clouds, resulting in red rain or red snow.
If you are using weight for measurement, it does not matter whether it is snow or water. It will still weigh the same. If you measure by volume, the density of snow varies, whereas the density of water is constant.
It is actually the Antarctica. Parts of the continant hasn't seen rain for 2,000,000 years! A desret is a place that getslessthan 254 mm (10 inches) of rain a year, the Sahara gets just 25 mm (1 inch) a year. Antarctica's average annual rainfall is about the same, but 2% of it, known as the Dry Valleys is free of ice and snow and it never rains there at all. The next driest place is the Atacama desert in Chile. In some areas, no rain has fallen there for 400 years and its average annual rainfall is a tiny 0.1 mm (0.004 inches). Taken as a whole this makes it the world's driest desert 250 times as dry as the Sahara.
For the only time in recorded weather history, snow fell in the Sahara desert in southern Algeria on February 18, 1979. The storm lasted only half an hour and the snow was gone within hours. ------------ Snow fell again in the Algerian Sahara in January and February of 2012.
none. and if it has ever been, extremely rare
It snowed in 1979 for the first time on record. In 2012, it snowed again in the Algerian Sahara.
Snow occasionally falls even in hot deserts such as the Sahara or Chihuahuan Desert. It is more common in cold winter deserts such as Antarctica, the Gobi Desert and the Great Basin Desert.
February 18, 1979. that the last time it snow.
The Sahara Desert in northern Africa is the largest hot desert in the world at 9.65 million sq km. The Gobi Desert in China and Mongolia is the 3rd largest hot desert in the world at 1.3 million sq km.
Snow on the Sahara was created in 1996.
It has snowed at the Sahara desert on February 18, 1979. I awoke to snow one February morning in the Mojave Desert (California, USA) in the early 1970s. The altitude there is 4,000 feet above sea level.
On average between 100mm (in the north) and 150mm in the South of rain per year.
While not common in hot deserts, snow has fallen in even the hottest of deserts such as the Mojave, Sahara, Chihuahuan and Sonoran Deserts. It is even more common in the cold deserts, especially in the Antarctic Desert, Great Basin Desert and the Colorado Plateau Desert.
The Sahara Desert is a hot, sandy desert. Antarctica is a continent with a large desert covering much of it's surface. It is of course cold and much of it consists of the East Antarctic Ice Sheet, although the dry valleys in the trans-antarctic mountains are not ice covered, and have sand dunes like more temperate deserts.
The Sahara does not have peaks of any consequence.