Beginning of winter, what do you mean, back to the same day in a flash?

After the winter solstice, the days are getting longer and longer, and the length of each day is almost 15 minutes, which is actually not that long.

Beginning of winter, one of the twenty-four solar terms, bucket handle points to the northwest, and the longitude of the sun reaches 225, which intersects with Gregorian calendar165438+1October 7-8 every year. Beginning of winter is a seasonal solar term, which means that it has entered winter since then. Stand still, build the beginning; In winter, everything will be collected in the end. Beginning of winter means that anger begins to close and everything enters a state of recuperation. Its climate has also changed from dry autumn to rainy and cold winter.

After beginning of winter, the sunshine time will continue to shorten, and the height of the sun will continue to decrease at noon. In winter, northeast winds and north winds prevail, and the temperature drops gradually. Because there is still some energy in the heat stored on the surface, it is generally not very cold in early winter. As time goes by, strong cold air frequently goes south and crosses Nanling, and the weather is getting colder and colder. In the north, it is already very cold before winter begins.

Extended data:

Climatic characteristics:

Beginning of winter said that since then, winter has traditionally started with "beginning of winter" in 24 solar terms. Li also means to establish and start; Winter means "end", that is to say, the crops should be harvested before harvesting. Beginning of winter, together with beginning of spring, Changxia and beginning of autumn, is called "Sili", which is a seasonal solar term.

Beginning of winter, its climate, wind and rain, humidity, temperature, etc. At this time, it is at a turning point from autumn to winter. Four seasons alternate throughout the year, and "four stands" means the rotation of four seasons, reflecting the changing laws of phenology and climate, such as spring, long summer, autumn harvest and winter storage. In the dead of winter, yang retreats to yin, life closes, and everything is harvested.

In southern China (low latitude area), it is rainy, stormy, sunny and humid, and these factors change obviously with the seasons. There is little precipitation in the northern region, and the changes of precipitation and other factors are not obvious when the seasons change. The most obvious change is the temperature, and the temperature in the northern region (mid-latitude region) changes obviously in four seasons.

References:

Baidu Encyclopedia-beginning of winter