Geographical location and precipitation characteristics of Jiuquan

Jiuquan has a continental arid climate, which is dry and cold with little precipitation. From east to west, the altitude is1500-100m, the annual average temperature is 3.9℃ ~ 9.3℃, and the frost-free period is 127 ~ 158 days. Summer is hot and short, winter is cold and long, but the temperature rises quickly in spring. It is dominated by temperate arid climate (central oasis, Gobi alternating area and northern desert Gobi area) and alpine semi-arid climate (southern Altun Mountain and Qilian Mountain along the mountain).

Jiuquan is a semi-desert arid climate, characterized by dry climate, less precipitation, strong evaporation, long sunshine, large temperature difference in Leng Xia in winter, cool in autumn and windy and dusty in spring. Temperature: The highest temperature in the whole year is℃, the lowest is -3 1.6℃, and the annual average temperature is 7.9℃, with a large temperature difference between day and night. The dominant wind direction throughout the year is southwest wind, followed by east wind and northwest wind. The maximum wind speed is 26 m/s and the average wind speed is 2.3 m/s.

The southern mountainous area of Jiuquan City has a cold and semi-arid climate with an average annual temperature of 4℃ ~ 6℃, and the corridor area has a temperate arid climate with an average annual temperature of about 5℃ ~ 9℃. The total sunshine hours in the whole year are more than 3,300 hours, and the sunshine percentage is 75%.