in the 24 solar terms, heavy snow is one of the solar terms. When there is heavy snow, it has entered winter, and winter is relatively cold. Is heavy snow the coldest weather in winter? What is the snowy weather like? Next, let's follow the old yellow calendar of this issue and have a look!
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heavy snow solar term the coldest weather in winter: it is not the "heavy snow" solar term on December 7 or 8 every year, when the sun reaches 255 degrees of the Yellow meridian. "The collection of the seventy-two seasons of the lunar calendar" says: "there is a lot of snow at this point." heavy snow means that the weather is colder, and the possibility of snow is greater than that of light snow, which does not mean that the amount of snow must be very large. In ancient China, heavy snow was divided into three periods: "the cuckoo does not sing at one time; the tiger begins to pay at the other time; and the Li stands out at the third time. This means that at this time, due to the cold weather, the cold horn birds no longer chirp; because this is the peak period of Yin, it is the so-called peak and decline, and the Yang has sprouted, so the tiger began to courtship;" Li stands " As a kind of orchid, it also feels the sprouting of Yang and sprouts new buds. It is often said that "auspicious snow bodes well for a bumper year" Snow covers the earth in severe winter, which can keep the temperature on the ground and around the crops from falling very low due to the invasion of cold current, creating a good wintering environment for winter crops. When the snow melts, it increases the soil moisture content, which can meet the needs of crop growth in spring. In addition, the content of nitrogen in snow water is five times that of ordinary rain, and it also has a certain effect of fertilizing the field "This year's wheat cover is covered with three layers, and the next year's sleeping with steamed bread". The ancient saying says, "the big one is full. So far, the snow is full. When there is snow on the ground, it is a symbol of heavy snow. In the north, there is a natural landscape of" thousands of miles of ice and thousands of miles of snow ", and in the south, there is also" snowflakes flying and silver all over the sky "
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" According to statistics, the month with the most strong cold air in China is November. During the heavy snow season, except that there is no winter area in South China and southern Yunnan, most parts of China have entered winter. The average temperature in Northeast and Northwest China has reached below - 10 ℃, and the temperature in the Yellow River Basin and North China has also stabilized below 0 ℃ Snow is gradually falling, and farther north, it is snowing heavily.
The south is dry with occasional snowfall, but in the south, especially in Guangzhou and the Pearl River Delta, it is still verdant with vegetation. The feeling of dryness is still obvious, which is very different from the climate in the north. The climate in the south is mild in winter with little rain and snow. The average temperature is about 2 ℃ to 4 ℃ higher than that in the middle and lower reaches of the Yangtze River. The rainfall accounts for only about 5% of the whole year. Occasional snowfall mostly occurs in January and February It's hard to see snow once in three or five years.
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it's foggy in the South and warm in the afternoon. At this time, the climate in South China is also foggy. Generally, December is the month with the most foggy days. Fog usually occurs in the morning when there is no cloud or little cloud at night, which is called radiation fog in meteorology. "Ten fogs and nine sunny days", the fog dissipates in the afternoon, and the afternoon sun will be particularly warm.and
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