Day Length: 10h 15m 37s See sunrise, sunset, solar noon, day length, and twilight information for the whole month in the table below.
1 The Chihuahuan Desert â the largest desert in North America, located in the Southwestern United States and Northern Mexico - (140,000 square miles (360,000 km 2)). 2  The Sonoran Desert â a desert located in the Southwestern United States and Northwest Mexico. 3  It is the second largest desert in North America.
This is the largest desert in the US. It is a cold desert bordered by the Sierra Nevadas on the West and the Rockies on the East, the Columbia Plateau to the north and the Mojave and Sonoran deserts to the south. It covers most of Nevada and about half of Utah as well as parts of California, Oregon, Idaho, and Wyoming.