What clothes should I prepare for the weather in Kuitun and the long business trip there?

Hello, the landlord, Kuitun is a city located on the Gobi Desert, with high terrain in the south and low terrain in the north, and no mountains around it. It is very hot in summer. If you have been to Urumqi, it is 2~3℃ higher than Urumqi. The highest temperature this year was 40℃ the day before yesterday. In winter, the climate is dry, the temperature is low, about -25~30, and the wind and sand are not big, but a thick down jacket is enough to wear in winter. If you are from the south, I suggest you bring more thick clothes and pants. The greening in Kuitun is good, I hope you like it.