What's the climate like in Xinjiang? Is it bad?

The climate in most parts of Xinjiang is bad, with barbecue mode in summer and freezer mode in winter. There is a lot of wind and sand, dry air, little rain and little temperature difference between day and night. If there is no air conditioning, I can't sleep at all in summer. It is very cold in winter, so it is estimated that most people can't carry it without wearing thick down jackets. This is why Xinjiang moves bricks.