Which six solar terms are exposed in autumn, and the autumn frost falls?

"Autumn dew and autumn frost" refers to the six solar terms of beginning of autumn, Chushu, Bailu, Vernal Equinox, Cold Dew and First Frost.

1, beginning of autumn

Beginning of autumn is the first solar term in July of the lunar calendar. Although it is beginning of autumn now, the hot weather will not get cold until the high temperature in summer reaches the millennium. In other words, it will be very hot for about 30 days from autumn.

2. Summer heat

Summer is the middle qi of the lunar calendar in July. "Chu" means retirement, and the heat means that the heat is about to pass. After the heat, autumn came, and there was a cold atmosphere between heaven and earth. For ancient people, this is the best time to go out to fight, which will not hinder farming, but also match the autumn atmosphere.

3. White deer

Millennium is a solar term in the eighth month of the lunar calendar, indicating that the weather is getting cold. People obviously feel that the hot summer has passed and the cool autumn has arrived, because although the temperature during the day still reaches more than 30 degrees Celsius, it drops to more than 20 degrees Celsius at night, and the temperature difference between them reaches 10 degrees Celsius.

4.autumnal equinox

The autumnal equinox is the middle spirit of the lunar calendar in August. On the day of the autumnal equinox, the sun shines directly on the equator, the length of day and night is even, and the climate is neither too hot nor too cold, just right. This day happens to be half of the ninety days in autumn, so it is called the autumnal equinox. After this day, the night is getting longer than the day.

5, cold dew

Cold dew is the solar term in September of the lunar calendar. Because the temperature gets cold and water vapor condenses into dew, it is called cold dew. At this time, it has entered the late autumn season, the earth is bleak and chilly, birds no longer sing, insects no longer sing, and leaves are everywhere. After the white dew, the weather turned cold and dew began to appear. When it comes to cold dew, there is more dew, and the temperature is lower.

6. First frost

The fifteenth day after the cold dew is the first frost, which is the neutral atmosphere in September. At this time, the autumn wind is chilly to the north of the Yangtze River, the temperature is getting colder, and the dew condenses into thin frost at night, so it is called the first frost.