What is the relationship between the temperature difference between Hohhot and Guangzhou?

First, it has something to do with latitude. Guangzhou is near the tropic of cancer, and Hohhot is about 40 degrees north latitude. There is a great difference in latitude between the two places. Guangzhou has a low latitude and receives more light and radiation than Hohhot.

Second, the relationship with altitude, Hohhot is located in the Inner Mongolia Plateau with a high altitude, while Guangzhou is located in the coastal area with a low altitude.

Third, the relationship between the monsoon and the subtropical monsoon climate, Guangzhou is hot in summer and warm in winter, with abundant rainfall throughout the year, while Hohhot is located in the mainland, with a temperate continental climate, hot in summer and cold in winter, with insufficient rainfall, and winter is often affected by cold waves in Novosibirsk and other regions.

Of course, there are many other reasons, the above are the main reasons I think, for reference only.