When is the light snow in 2020?

The light snow in 2020 is165438+1October 22nd.

I. Basic information

Light snow is the twentieth solar term among the twenty-four solar terms and the second solar term in winter. The time is Gregorian calendar1October 22 or 23 165438, that is, when the sun reaches 240 degrees of the yellow meridian. Light snow is a solar term reflecting precipitation and temperature, and it is a solar term with high frequency of cold wave and strong cold air activity. The arrival of the light snow solar term means that the weather is getting colder and colder and the precipitation is gradually increasing.

This solar term is called light snow because "snow" is the product of cold weather. During this solar term, the climate is not deep and the precipitation is not great, so "light snow" is used to compare the climate characteristics during this solar term. "Light snow" is a metaphor, which reflects the active cold current and increased precipitation in this solar term, rather than the light snow under this solar term.

During the light snow solar term, a relatively stable meridional circulation has been established in East Asia, and low pressure or trough often appears in Siberia. When moving eastward, there will be a large-scale cold air heading south, and there will be a large-scale gale and cooling weather in the southeast of China.

Second, meteorological changes.

Light snow is a solar term reflecting precipitation and temperature, and it is a solar term with high frequency of cold wave and strong cold air activity. There is no necessary connection between the light snow in solar terms and the light snow in the weather. The meaning of "light snow" in solar terms is different from that in daily weather forecast. Light snow solar term is a climate concept, which reflects the temperature and precipitation. The light snow in the weather forecast refers to the snow with less snowfall intensity. Snow is the product of cold weather. Meteorologically, the horizontal visible distance is equal to or greater than 1000m, the ground snow depth is less than 3cm, and the snowfall in 24 hours is between 0. 1-2.4mm, which is called "light snow". ..

During the light snow solar term, a relatively stable meridional circulation has been established in East Asia, and low pressure or trough often appears in Siberia. When moving eastward, there will be a large-scale cold air going south, and there will be a large-scale gale and cooling weather in eastern China. Light snow solar terms do not necessarily snow. In fact, the solar terms with the largest snowfall in the whole year are not in light snow and heavy snow. For example, in the middle and lower reaches of the Yellow River and its vicinity, the solar term with the largest snowfall in the whole year is neither "light snow nor heavy snow" nor "slight cold nor severe cold", but "rain" in spring.

Three. daily life

Go to bed early and get up late, people should go to bed early appropriately, and at the same time, they should not get up too early in the morning to ensure adequate sleep. Pay attention to clothes, too thick or too thin is not good. It is suggested that when going out, people with weak constitution should wear clothes with high neck and waist protection.

Pay attention to the warmth of feet, insist on washing feet with warm water, massage to stimulate foot acupuncture points, and promote blood circulation. Keep walking for more than half an hour every day to keep warm from the cold and prevent colds.

Pay attention to ventilation in cold weather. People exhale more than 20 liters of carbon dioxide per hour in a quiet state, so you should always open the window for air.

Before and after the light snow solar term, people's moods are easily affected because of the long nights and short days, the rising of yin and yang, the lowering of temperature, the cold and gloomy weather, the withered leaves and the cold wind, which causes some psychological sadness, especially for some elderly people and patients with chronic diseases, and even leads to the occurrence of depressive symptoms. At this time, we should adjust our mentality and pay attention to psychological aftercare. Stay optimistic, control anger with music, listen to music more, make the wonderful melody add fun to life, and at the same time take part in more entertainment activities, bask in the sun, and arouse enthusiasm and yearning for life.

Reference: Baidu Encyclopedia