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Is beginning of winter the first day of winter?
Beginning of winter is the 19 solar term in the twenty-four solar terms of the lunar calendar, bucket handle points to the northwest, and the longitude of the sun reaches 225 degrees. Beginning of winter solar terms emphasize that on165438+10.7 or165438+10.8 every year, beginning of winter means that it has entered winter.

Standing is the beginning, and winter is the end. After winter, everything is adopted, and gradually changes from dry autumn to cold winter weather. After entering winter, the days get shorter and the nights get longer, especially on the day of winter solstice, which is the longest night in a year. It's just winter, because there is still a certain temperature on the surface, it won't be too cold in the south, but for the north, it's before beginning of winter.

Will beginning of winter enter the cold winter in the future? China is a vast country with different climates. In the north, the temperature has dropped below 0 degrees, but in some areas in the south, the temperature is still very high. Just like in Yunnan, today's temperature is still around 2 1 degree, which is not low.

According to this temperature, not all places in early winter will enter winter, but after beginning of winter, if the temperature drops by 5~ 10 degrees, then this area is considered to have entered winter. Although the solar terms in beginning of winter are the same, the temperature varies in different places, so judging from the local temperature, except the northern area, the winter time in most areas will be delayed by 20 days.

The change of climate in early winter is the increase of temperature difference between morning and evening. In the northern region, water has been able to form ice, and water is condensed, mainly cold air in the morning and evening. In the northern region, the land has begun to freeze, and some cold places can already skate on the ice. After entering beginning of winter, some wild animals go into hibernation, such as snakes and pheasants, to store energy and recuperate.