How about the climate in Xinjiang?

Generally, a semi-arid or desert climate prevails in Xinjiang. The entire region is marked by great seasonal differences in temperature and cold winters. During the summer, the Turpan Depression usually records the hottest temperatures nationwide, with air temperatures easily exceeding 40 °C (104 °F). In the far north, and at the highest mountain elevations, however, winter temperatures regularly drop below −20 °C (−4 °F).

Continuous permafrost is typically found in the Tian Shan starting at the elevation of about 3,500-3,700 m above the sea level. Discontinuous alpine permafrost usually occurs down to 2,700-3,300 m, but in certain locations, due to the peculiarity of the aspect and the microclimate, it can be found at elevations as low as 2,000 m.