When is the cold dew in 2022? How to treat the specific time of cold dew? Will cold dew cool down?

Cold dew is the seventeenth solar term in the twenty-four solar terms and the fifth solar term in autumn. Finger e; Taiyangda Vitex negundo195deg; ; It is celebrated on the 7th to 9th of the Gregorian calendar 10 year 10.

Lunar cold dew in 2022: September 2022 13; Gregorian calendar: 20221Saturday, October 8th 10.

Specific time: 15:22: 16

How to treat the specific time of cold dew?

The date of cold dew is almost the same every year, all within the three days of Gregorian calendar 65438+1October 7~9, but the specific time is different every year.

The specific time of solar terms is calculated according to the position of the earth on the ecliptic (that is, the orbit of the earth around the sun). For example, the cold dew solar term is when the sun reaches 195.

Every solar term can be calculated according to the formula, and the formula for calculating cold dew is-

Calculation formula: [Y*D+C]-L

Interpretation of the formula: Y= two digits after the number of years, D=0.2422, L= leap year, 2 1 century C=8.3 18, and 20th century =9.098.

For example, the date of cold dew in 2088 =[88 times; 0.2422+8.318]-[88/4] = 29-22 = 7,10. Will the solar term cool down on October 7th?

After the cold dew, the temperature will drop obviously and the weather will get colder and colder.

After the cold dew, the days become shorter, the nights become longer, the sunshine decreases, the hot air recedes, the cold becomes longer, the temperature difference between day and night is larger, and it feels a little cold in the morning and evening. At this time, the weather is usually warm during the day, cool at night and clear in Wan Li.

After the cold dew, as the direct point of the sun in the southern hemisphere continues to move southward, the angle of sunlight in the northern hemisphere begins to tilt obviously, and the solar heat received by the ground is obviously reduced compared with that in summer. The influence of cold air can sometimes extend to South China. In the cold dew season, dew increases and the temperature decreases. At this time, the temperature in most parts of South China continued to drop. The average daily temperature in South China is less than 20℃. Even in the areas along the Yangtze River, it is difficult for the temperature to rise above 30℃, while the minimum temperature can drop below 10℃. Except for a few valley lowlands, the average climate temperature in Northwest Plateau is generally lower than 10℃. According to the standard of dividing the four seasons by the average climate temperature, it is already winter.