When does the cold weather start and end?

65438+February 2 1 is the day when the winter solstice comes and the cold weather begins. After the arrival of the winter solstice, the climate will change obviously and begin to enter the coldest time of the year. So how long will it last and when will it end? Let's take a look together.

What solar term did the cold weather start from?

Winter solstice

There is a folk saying that "it's cold in nine days, and it's cold in dog days", and "dog days" refers to the third "nine days" after the winter solstice, that is, the 19th to 27th days after the winter solstice.

Today 18: 02, the "winter solstice" solar term will be ushered in. Starting today, we will officially enter the Ninth Five-Year Plan.

In all parts of the northern hemisphere, the winter solstice has the shortest day and the longest night. The farther north, the shorter the day. Although the days from winter solstice are short, the temperature from winter solstice is not the lowest; It won't be very cold before the winter solstice, because there is still "accumulated heat" on the surface, and the real cold winter is after the winter solstice. The winter solstice marks the beginning of the cold season, and people begin to count nine to calculate the cold days.

The winter solstice is in the middle of November of the lunar calendar. "solstice" means extreme, and the spirit of winter storage is so extreme. It contains three meanings: the yin is cold to the extreme and the weather is coldest; The sun is the spirit, forcing the weather to be cold; The sun moves to the southernmost tip, so the days are the shortest and the nights are the longest.

Count to nine at the beginning and end of cold weather.

China has been in cold weather for several years since the winter of November. Astronomical experts said that "the Ninth Five-Year Plan" is a more applicable solar term in northern China, especially in the middle and lower reaches of the Yellow River.

From the day of winter solstice, it entered the "number nine", commonly known as "cross nine", and then every nine days as a unit, called "nine". After nine "nines", it happens to be eighty-one days, that is, "nine out", and then bloom is warm in spring.

There are three stages in winter solstice.

Wait for earthworms to knot: On the day of winter solstice, earthworms feel that Yin Qi shrinks and Yang Qi stretches, and when the cathode is cold, it is corrected to knot.

Second, wait for the elk horn solution: "Elk horn solution" is on the fifth day after the winter solstice. Deer belong to the mountain beast, and they feel their horns in summer; Elk is a shiny animal. It feels sunny, so it can shed its horns on the solstice in winter.

Waiting for the spring to move: On the fifth day, the spring moved. The water was born at the first day of the sun, and now the sun is born, so the water spring has been secretly flowing.