2, Lidong is a seasonal festival, said since then into the winter. The winter season is a seasonal season, which means that we have entered the winter season since then. The winter season, yang retreat yin born, angry closed storage, all things collection. "Spring, summer long, autumn harvest, winter," winter is to enjoy the harvest, rest and recuperation season, winter in the ancient folk is "four times eight sections" one, in ancient times in some parts of China will be held in the winter rituals, banquets and other activities, as an important festival to celebrate.
3, the tradition is to "winter" as the beginning of winter, the autumn rainy dry climate gradually past, began to rainy cold winter climate transition. After the winter sunshine time will continue to shorten, the height of the midday sun continues to decrease, due to the surface of the stored heat there is a certain amount of energy, so the general early winter (Meng winter) period of the temperature is gradually declining, but it is not very cold; with the passage of time, the strong cold air south frequently, and over the South Ridge, the weather is getting colder and colder. In the northern region, before the winter has been very cold.
4, winter, said the beginning of winter, traditionally the twenty-four solar terms "winter" as the beginning of winter. Winter season, the sun has reached 225 degrees of longitude, the Earth is located in the equatorial latitude -16 ° 19, the northern hemisphere of the sun altitude becomes smaller, shorter daytime, the northern hemisphere to get the sun's radiation is less and less, but because of this time in the second half of the earth's surface in the heat stored there is still a certain amount of energy, so it is not very cold. Mengdong (winter to snow) period, in the clear and windless, often wind and sunshine, warm and comfortable "small spring" weather, in the folk "October small spring" said. In some parts of the south of the early winter (Meng winter) this period is generally not very cold, but as time goes by, the cold air frequently south, the temperature gradually decline. Northern regions, before entering the winter to the spring this time are very cold, winter climate change is not obvious in several seasons, snow is the main feature of the northern winter.
5, in some areas in the south of China, winter to snow festival (equivalent to the lunar calendar October) period, there is often a period of warm weather, so some fruit trees mistakenly think that spring is coming, the second degree of flowering, as the so-called "August warm September temperature, October and a small spring". In the winter season, the so-called "cold in three nine", before the winter solstice is usually not very cold. With the winter solstice on the nonce as a starting point, every "nine days" counts a "nine", the first nine days is called a nine, the second nine days is called two nine, and so on, the coldest period of the year is the three nine days. Since the winter solstice, began to enter the "three nine days", strong cold air south frequently, the temperature plummeted, the weather is cold. So, winter is really cold, is after the winter solstice.