There are about two dozen major desert regions in the world and each has its own climate statistics. There is no single answer to your question unless you specify a particular desert.
cold desert
There are hot deserts and there are cold deserts. In July it is the middle of summer in the northern hemisphere and winter in the southern. Each desert has its own climate statistics so you need to provide a specific desert location.
The Patagonian Desert is considered a cold desert.
Yes, the Patagonian Desert is considered a cold desert.
The Antarctic is a very cold desert, In addition, the Great Basin Desert, the Gobi Desert and the Patagonian Desert are quite cold in the winter. There are others.
The Leh is a cold desert.
A cold desert is a desert that is either cool/cold the year around or has a cold winter. Here are some examples:Polar Desert - Antarctic DesertCold Winter Desert - Gobi Desert, Great Basin DesertCool Coastal Desert - Atacama Desert, Nubian Desert
Cold desert in Mongolia and China is Gobi Desert.
The Antarctic Desert is always cold.
The largest cold desert is Antarctica.
Whales do not live in the cold desert. They do, however, live in the waters surrounding a cold desert.
Antarctica is the largest cold desert.