What's the weather like in the autumn equinox? What's the general temperature?

The autumnal equinox is one of the twenty-four solar terms, and it is also one of the solar terms in autumn. In autumn, the weather is getting colder and colder, so what is the weather like in the autumn equinox? What is the general temperature of the autumnal equinox? Next, let's take a look at this issue of the old almanac!

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What's the weather like around the autumnal equinox? In the autumn equinox, most parts of our country have entered a cool autumn, and the cold air from the south meets the gradually decaying warm and humid air, which leads to repeated precipitation and repeated temperature drop. As people often say, it's time for "an autumn rain and a cold", but the daily precipitation after the autumnal equinox will not be great. At this time, the field farming in the south and the north is different. In the northern hemisphere, the days are getting longer and longer from the winter solstice, but from the vernal equinox, the days are longer than the nights. From the summer solstice, the days become shorter and shorter, but from the autumn equinox, the days are shorter than the nights.

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What is the general temperature of the autumnal equinox? During the autumnal equinox, the Yangtze River basin and its vast areas to the north enter autumn one after another, and the daily average temperature drops below 22℃. The cold air mass in the north began to have some influence. The rainy season has just ended in most areas, and the weather is sunny, the autumn is crisp, the osmanthus fragrance is fragrant, the crab is fat and the chrysanthemum is yellow, and the autumn equinox is a beautiful and pleasant season. It is also an important solar term in agricultural production. After the autumnal equinox, the direct point of the sun moved to the southern hemisphere, and the northern hemisphere got less and less solar radiation, while the ground lost more heat and the temperature dropped significantly.

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The autumnal equinox introduces the autumnal equinox, which is the sixteenth of the 24 solar terms. The time is generally from September 22 to 24 of the Gregorian calendar every year. On the day of the autumnal equinox, the sun reaches the longitude 180 (autumnal equinox), almost reaching the equator of the earth, and the length of day and night is equal all over the world (regardless of the refraction of the sun light by the atmosphere and the shadow in the morning). In ancient times, there was a saying that "the sun is sacrificed in spring and the moon is sacrificed in autumn", and the autumnal equinox was once a traditional "moon festival". Now Mid-Autumn Festival comes from the traditional Mid-Autumn Festival. After the autumnal equinox, the direct point of the sun continued to move from the equator to the southern hemisphere, and the days in the northern hemisphere began to shorten and the nights became longer, that is, the days in a day began to be shorter than the nights; The southern hemisphere is the opposite. Therefore, the autumnal equinox is also called the landing point. At the North Pole and South Pole, on the day of the autumn equinox, the sun is on the horizon all day. After that, as the direct point of the sun continued to move southward, a six-month polar night began near the North Pole, which gradually expanded and then narrowed. A six-month polar day began near the South Pole, which gradually expanded and then narrowed.

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