Average Temperatures for Phoenix. Phoenix's coldest month is January when the average temperature overnight is 43.4°F. In July, the warmest month, the average day time temperature rises to 104.2°F.
Then, how cold does it get in the Sonoran Desert at night?
The Sonoran is a hot desert. Summer air temperatures routinely exceed 40°C (104°F), and often reach 48°C (118°F). These high near-surface temperatures interact with cool, moist air in the atmosphere to produce the violent thunderstorms of the summer monsoons.
How cold does it get in the Sahara desert at night?
Deserts have extreme temperatures. During the day the temperature may reach 50°C, when at night it may fall to below 0°C. Deserts have less than 250 mm of rainfall per year. The rain can be unreliable. Most deserts are found between 20° and 35° north and south of the equator.
Why is it so cold at night in the desert?
Because deserts have such little water vapor in the air, it makes it harder to trap heat or cold in a desert. At night, the sun no longer heats the desert and the heat from the day doesn't stay trapped. Because of this, some deserts can get cold at night, dropping to below 40F, which is definitely coat weather.