The Mojave Desert is at around 36 degrees North Latitude in southern Nevada. Here is a summary of my understanding of barometric pressure and precipitation on Earth: "Areas with low barometric pressure get a lot of rain. Areas with high barometric pressure get little precipitation. The equator has low barometric pressure and a lot of rain. The North Pole and South Pole are high barometric pressure areas that get little rain. In terms of latitude, the center of the United States of America is at around 40 degrees North Latitude. 40 degrees north Latitude is in between belts of high and low pressure. Therefore, the USA tends to experience alternating periods of rain and sunshine. The portion of the Earth's surface at around 30 degrees latitude has high barometric pressure. Therefore, the portion of the Earth's surface at around 30 degrees Latitude tends to have very little rainfall such as the southwest USA and northern Mexico, the Sahara Desert, the Middle East, etc. The Mojave Desert is at around 36 degrees Latitude. It's my understanding that the Mojave Desert gets so little rainfall because the Mojave Desert is in an area with high barometric pressure." Nashville, TN is at approximately 36 degrees North Latitude, just like the Mojave Desert. However, if the Mojave Desert gets so little rainfall because it's in a high barometric pressure zone because the Mojave Desert is at approximately 36 degrees North latitude, why is Nashville, TN not a desert also?