What is the summer solar term?

"Chu" means to hide and die, and "early summer" means that the hot summer has passed.

The twenty-four solar terms of Yuan Wucheng said, "The summer ends here." "Chu" means termination, which means that the summer heat is about to pass, the summer heat will end on this day, and the temperature in most parts of China will gradually drop. Being in summer is not only different from mild summer heat and severe summer heat, but also different from slight cold and severe cold solar terms. This is a solar term representing the transition from hot to cold.

"Summer heat" means heat in ancient Chinese. According to the different temperatures in a year, "summer heat" is also divided into three grades, namely, slight summer heat, great summer heat and great summer heat. Among them, the slight summer heat is after the long summer, and the temperature is slightly higher, but not very hot. Around midsummer, it is the hottest period of the year, and the heat is even stronger than the heat. As the saying goes, a little summer is not summer, but a big summer is in the sky. That's what it means.

Meteorological changes in summer:

In summer, that is, "out of summer", the high temperature will gradually withdraw. After the summer, the direct point of the sun continued to move southward, the solar radiation weakened, and the subtropical high retreated southward. As the height of the sun decreases, the heat it brings also decreases. The arrival of summer means that the hot and difficult weather is over. During this period, the weather is still hot, but it has shown a downward trend. The disappearance of summer heat is a slow process. It doesn't mean that it gets cold immediately after the heat drops in summer. Generally, coolness will begin after the Millennium.

After summer, the temperature gradually decreases and the temperature difference between day and night gradually increases, but the temperature is still high during the day. The reasons for this phenomenon are as follows: first, the direct point of the sun continues to move southward, and the solar radiation weakens; Second, the subtropical high moved southward by leaps and bounds, and the Mongolian cold high began to itch to try.