Why is the summer weather in Chongqing the hottest in China? Help the gods.

Hello, the reason why Chongqing is hot is actually very simple, as mentioned in high school physics. Chongqing is a city in Sichuan, and Sichuan is a basin below the horizon. It is surrounded by mountains. In summer, the sun shines, the heat is not easy to dissipate, and it is close to the Yangtze River. So it feels sultry in summer. And because it is rare this year, the subtropical high has entered the Sichuan basin with a longitude of 32 degrees. Chongqing is also located in the basin topography. Finally, because there is less snow in the mountainous areas of the northwest plateau than in previous years, more heat radiated by the sun flows down to the Sichuan basin, and because of the blocking of mountains, the cold air from northern Mongolia and Siberia cannot penetrate into the Sichuan basin. I hope the landlord can understand my answer.