Home page Culturemain body

Why does the temperature drop fast before and after cold dew mean

DailyBird Culture 2021-10-09 1 0
When the

cold dew comes, it has entered autumn. Autumn is a season of weather change, and the temperature also drops gradually. So why does the temperature drop quickly before and after the cold dew? What does cold dew mean? Next, let's follow the old yellow calendar of this issue and have a look!

为什么寒露前后的气温下降快 意思代表什么 you may be interested in: Why did the temperature drop quickly before and after the cold dew on the auspicious day of obtaining the certificate in 2020? It is the characteristic of the cold dew solar term. Every autumn rain is cool. After every autumn wind and rain, the temperature will drop by 8 ℃ and 10 ℃. However, most of the stormy weather does not last long (except in West China). Controlled by cold and high pressure, it is warm in the day and cool at night, and the weather becomes drier. Cold dew is the solar term in late autumn. In cold dew, geese fly to the warm south, and chrysanthemums are in full bloom. Compared with the "White Dew" a month ago, the temperature is lower, there is more dew, and it is cold.


cold currents are frequent. After the cold dew, the cold air in the north is rampant. The weather is often warm in the day and cool at night. Maple red and apricot yellow are a scene of late autumn. The isotherm of 10 ℃ has moved south to the line of Qinling Huaihe River, and generally dropped below 0 ℃ to the north of the Great Wall. The first frost can be seen in most years in Beijing. After entering the cold dew solar term, the invasion frequency and intensity of cold air in the north will increase. It is common for the temperature to drop 8 ℃ to 10 ℃ after autumn wind and rain brought by a strong cold air.


and 为什么寒露前后的气温下降快 意思代表什么 you may be interested in: on the auspicious day of construction in 2020,


have less precipitation and thunderstorms disappear. 1. The precipitation of cold dew solar term in North China is generally only half or less of that of Bailu solar term, and that in Northwest China is only a few millimeters to more than 20 millimeters. Drought and little rain often bring difficulties to timely sowing of winter wheat, which has become one of the main limiting factors for high yield of dryland wheat. 2. After the cold dew solar term, thunderstorms have disappeared in most parts of China, and thunder can be heard only in some areas of Yunnan, Sichuan and Guizhou. The climate of


varies greatly. Due to China's vast territory, the climate in the South and north is mostly different, and the cold dew solar term is different in different regions of China. 1. In South China, the average temperature is above 22 ℃ in most areas. 2. Hainan is higher, above 25 ℃, and has not gone out of summer. 3. The temperature in Jianghuai and Jiangnan is generally between 15 ℃ and 20 ℃. 4. The temperature in the south of Northeast China, North China and Huanghuai river is between 8-16 ℃. 5. The average temperature in some parts of the northwest and the middle and north of the Northeast has reached below 8 ℃. 6. The average temperature in some plateau areas of Qinghai Province is even below 0 ℃.

为什么寒露前后的气温下降快 意思代表什么 you may be interested in: what does

cold dew mean on the auspicious day of travel in 2020: the season of autumn officially begins. Cold dew is the 17th of the twenty-four solar terms of the lunar calendar and belongs to the fifth solar term of autumn, indicating the official beginning of autumn; The time is from October 7 to 9 of the Gregorian calendar every year. When the apparent sun reaches 195 ° of the Yellow meridian. "The collection of the seventy-two seasons of the lunar calendar" says: "on September day, the dew is cold and will condense." cold dew means that the temperature is lower than that of White Dew, and the dew on the ground is colder and is about to condense into frost. In the cold dew season, Nanling and the vast areas to the north have entered autumn, the Northeast has entered late autumn, and the Northwest has entered or will enter winter.

Copyright notice

This article only represents the author's point of view, not the standpoint of this station.
This article is authorized by the author and cannot be reproduced without permission.