Where is the lowest temperature in summer in China?

Xining is located in the confrontation between the north and south mountains in Hehuang Valley of Qinghai-Tibet Plateau, belonging to Qilian Mountain System, and Huangshui River, a tributary of the Yellow River, runs through the urban area from west to east. The total area of the city is 7665 square kilometers, the urban area is 350 square kilometers and the built-up area is 75 square kilometers. The urban area is 226 1 m above sea level, with an annual average precipitation of 380mm, evaporation of1.363.6mm, annual average sunshine of1.939.7hr, annual average temperature of 7.6 degrees Celsius, maximum temperature of 34.6 degrees Celsius and minimum temperature of-18.9 degrees Celsius, belonging to the mainland. The average temperature in summer is 17- 19 degrees Celsius, and the climate is pleasant. It is a summer resort and is called "the summer capital of China".

Guiyang is also good in summer.

Guiyang has a subtropical humid and mild climate, with no heat in summer, no cold in winter, plenty of sunshine and rain. The air is not dry, there is no sandstorm in all seasons, and the annual average temperature is about 15.3℃. Among them, it is the hottest in late July, with an average temperature of 24 C; /kloc-0 is the coldest at the beginning of the month, with an average temperature of 4.6℃. The pleasant climate has won Guiyang the reputation of "heaven above, Suzhou and Hangzhou below, and the climate is suitable for Guiyang".