The predominant climate in deserts is arid. Desert climates are characterized by extremely low precipitation, often less than 10 inches (25 centimeters) per year, which results in dry conditions. Deserts typically have high temperatures during the day and cooler temperatures at night, with limited vegetation due to the harsh conditions. The lack of moisture affects the types of plants and animals that can survive there, leading to adaptations such as water conservation in flora and fauna. Some well-known deserts include the Sahara in Africa and the Mojave in North America.