Why is the big summer heat hotter than the small summer heat?

There is a folk saying that "it's a little summer, and it's steamed and cooked." In contrast, it is hotter in summer. "Summer heat" means heat, and light summer heat means that the weather is getting hot, but it is not the hottest time yet. Summer solar terms are just around the middle of the "dog days", which is the hottest, wettest and sultry day of the year.

The reason why it is the hottest in the dog days is that after the dog days, the humidity of the ground becomes higher, and more heat is absorbed and less heat is emitted every day, and the heat on the ground accumulates, so it gets hotter every day. Entering the dog days, the area heat reaches its peak and the weather is the hottest.

High temperature weather of 40 degrees Celsius often occurs in many areas of our country.