When are the summer heat, summer heat, beginning of autumn and summer heat? What does it stand for?

1, Xiaoxia: The time is usually from July 6 to July 7 and 8 every year, which means that the weather is already very hot, but it is not the hottest time, so it is called Xiaoxia. ?

2. Summer: July 22nd, 23rd or 24th every year, representing the hottest solar term in a year. Before and after the next day's duty, high temperature weather of 40℃ often appeared in many places in the Yangtze River Basin. ?

3. beginning of autumn: Every year on August 7th, 8th or 9th, it means that from this day on, autumn begins, the air is crisp in autumn and the moon is clear. Since then, the temperature has gradually decreased from the hottest time. ?

4. Summer: August 22nd, 23rd or 24th every year means that the summer heat has come to an end. The heat of summer is about to dissipate. This is the turning point of the temperature drop. It is a symbol of cold climate and indicates the end of summer. ?

Extended data

The naming of the twenty-four solar terms reflects three seasons, phenology and climate changes. The solar terms reflecting the changes of the four seasons are: beginning of spring, Spring Equinox, Long Summer, Summer Solstice, beginning of autumn, Autumn Equinox, beginning of winter and Winter Solstice.

Among them, beginning of spring, Changxia, beginning of autumn and beginning of winter are collectively called "Sili", which means the beginning of the four seasons. There are five solar terms reflecting temperature changes: slight summer heat, great summer heat, summer heat, slight cold and severe cold.

There are seven solar terms reflecting weather phenomena: rain, Grain Rain, white dew, cold dew, first frost, light snow and heavy snow. There are four solar terms reflecting phenological phenomena: Jing Zhe, Qing Ming, Xiaoman and Mang Zi.