Death Valley National Park class 2 or "average dark sky" sites. Death Valley National Park Death Valley National Park is an American national park that straddles the California—Nevada border, east of the Sierra Nevada. The park occupies an interface zone between the arid Great Basin and Mojave deserts, protecting the northwest corner of the Mojave Desert and its diverse environment of salt-flats, sand dunes, badlands, valleys, canyons, and mountains. Death Valley is the largest national park in the lower 48 states, and the hottest, driest and lowest of all the national parks in the United States. The second-lowest point in the Western Hemisphere is
Death Valley low. As recently as July 12, 2012, the low temperature at Death Valley dropped to just after a high of on the previous day. The only other location which matches Death Valley's overnight low temperature of 107 °F in recent years is Khasab Airport in Oman, which also recorded a low of on June 27, 2012, and later one of on June 21, 2017. Also on July 12, 2012, the mean 24-hour temperature recorded at Death Valley was , which makes it the world's warmest 24-hour temperature on record. The average annual precipitation in Death Valley is , while the