hyperarid

Especially important would be any water they could bring with them, as dehydration in the cold and hyperarid night was going to be severe.

Rangelands in South America exclude hyperarid deserts.

Hyperarid deserts are avoided.

According to the UNESCO description, the lakes are located in a hot and hyperarid desert that features a rainfall of less than 2 mm a year.

Two species in the North American genus Neoanagraphis are found in often hyperarid conditions in the Mojave, Sonoran and Chihuahuan Deserts.

Deserts and xeric shrublands receive an annual average rainfall of ten inches or less, and have an arid or hyperarid climate, characterized by a strong moisture deficit, where annual potential loss of moisture from evapotranspiration well exceeds the moisture received as rainfall.