What's the climate like in four seasons in Xining, Qinghai?

The four seasons in Qinghai are basically distinct, except that spring is a little shorter, but summer is cool. It's not hot at all. Autumn turns cold, as the saying goes, an autumn rain leads to a cold, which is absolutely true in Qinghai. It's hard to get hot after it rains in autumn. The coldest time in winter in Xining is about MINUS 15-20 degrees. It will be colder in pastoral areas