Does the weather start to get colder after the autumnal equinox? What are the characteristics of the Autumnal Equinox?
When the Autumnal Equinox comes, the temperature difference between day and night will gradually increase, and the temperature will also show a downward trend. So what are the characteristics of the Autumnal Equinox? The second month of autumn is the eighth month of the lunar calendar. Because it is in the middle of autumn, it is called Mid-Autumn. Do you want to know about the lunar calendar knowledge about the eighth month? Click on Mr. Ink's website to check it out!Does the weather start to get colder after the autumnal equinox?When the Autumnal Equinox arrives, the weather will start to get colder.During the autumnal equinox, most parts of my country enter the cool autumn. The cold air moving south meets the descending warm and humid air, producing precipitation again and again, and the temperature drops again and again. As people often say when it comes to "one autumn rain, one cold", the daily precipitation after the autumnal equinox will not be very large. The Yangtze River Basin and large areas of northern my country have entered autumn, and the average daily temperature has dropped below 22°C. The cold air mass in the north began to gain a certain degree of strength. In most areas, the rainy season has just ended, with light breezes and blue skies. However, the temperature in Guangdong and Hainan will gradually drop until the end of October to November. After the autumnal equinox, the sun reaches directly into the Southern Hemisphere. The Northern Hemisphere receives less and less solar radiation, while the ground radiates more and more heat, and the temperature drops faster. What are the characteristics of the Autumnal Equinox?1. From the day of the Autumnal Equinox, the climate characteristics of the Autumnal Equinox mainly present the following characteristics: the position of direct sunlight continues to move from the equator to the southern hemisphere, the phenomenon of shorter days and longer nights in the northern hemisphere will become more and more obvious, with the days gradually getting shorter and the nights getting longer (until the winter solstice when the nights are longest and the days are shortest); the temperature difference between day and night gradually increases, and the amplitude will be more than 10℃; the temperature drops day by day, getting colder day by day, and gradually entering the late autumn season. The situation in the Southern Hemisphere is exactly the opposite.2. In autumn, the average daily temperature is below 22℃. During the autumnal equinox, the Yangtze River Basin and the vast areas to the north of my country have entered autumn one after another, and the average daily temperature has dropped below 22℃. The cold air mass in the north is beginning to have a certain strength. The rainy season has just ended in most areas. There is a cool breeze, clear blue sky, sunny days, clear autumn weather, fragrant osmanthus, fat crabs and yellow chrysanthemums. The autumnal equinox is a beautiful and pleasant season. 3. The ground loses a lot of heat and the temperature drops quickly. After the autumnal equinox, the position of the sun's direct rays moves to the southern hemisphere. The northern hemisphere receives less and less solar radiation, while the ground loses more heat, and the rate at which the temperature drops significantly accelerates. A farmer's proverb says: "Every autumn rain brings a chill" and "The night of the White Dew and the Autumnal Equinox is colder every night." "In August, the Yanmen Pass opens, and the geese bring frost under their feet." In years when the temperature in Northeast China drops early, it is not surprising to see frost during the Autumnal Equinox. |
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