What month is the cool dew autumn earthquake?

Cold dew and autumn shock are in September, which is the 17 solar term in 24 solar terms and the fifth solar term in autumn. It is the end of the full moon and the beginning of the full moon. At night, looking up at the starry sky, you will find that the season of the starry sky changes, and the "big Mars" representing midsummer has sunk into the west.

As soon as the cold dew passed, the height of the sun continued to decrease and the temperature gradually decreased. The temperature of cold dew is much lower than the white dew in solar terms, and the dew on the ground is colder, which is likely to become frozen dew. In September, the dew is cold and will condense. At this time, the temperature is lower than the "white dew", with more dew and freezing cold, hence the name "cold dew".

There is a proverb in our country called "dew is white before it is cold", which means that dew changes from a little coolness in early autumn to a little coolness in late autumn after the solar terms. From white and crystal dew to freezing cold, it vividly reflects the continuous decline of temperature.

After the solar term of cold dew, the days become shorter, the nights become longer, the sunshine decreases, the hot air slowly recedes, the cold gradually grows, the temperature difference between day and night becomes larger, it is slightly cold in the morning and evening, and everything is gradually bleak.