Climatic characteristics of solar terms in Yizhuang on autumn equinox

The autumnal equinox solar term is one of the important solar terms in autumn, which falls on September 22 or 23 of the solar calendar every year. The climatic characteristics of the autumnal equinox solar terms mainly include the following points:

1, the temperature turns cold: with the arrival of the autumnal equinox, the summer heat gradually weakens and the temperature begins to drop. The temperature difference between day and night increases, and you may feel cold sooner or later. Especially in the north, the temperature is low and the chill begins to appear gradually.

2, the sky is blue: the sky in the autumn equinox is usually blue and sunny, with less summer heat and cloudy weather. Sunlight shines on the earth through the blue sky, giving people a refreshing and pleasant feeling.

3. Rainfall increase: With the approaching of the autumnal equinox, rainfall gradually increases. The temperature drops and the water vapor increases, which makes the autumnal equinox solar terms often rainy and rainy, and sometimes there will be heavy rainfall.

4. Monsoon change: In some areas, the autumnal equinox also marks the change of monsoon. For example, the East Asian monsoon in Asia will gradually change from the southeast wind in summer to the northerly wind in autumn after the autumnal equinox, and the climate will become dry.

5, autumn wind blowing: A major feature of the autumnal equinox solar terms is that the wind is gradually increasing. With the change of seasons, the cool autumn wind began to blow across the earth frequently. Especially in the northern region, the autumn wind is chilly, giving people a fresh and hearty feeling.

6. Humidity drop: Compared with the humid climate in summer, the humidity of the equinox solar terms will gradually drop. The decrease of humidity in the air makes the sky clearer, and the air permeability and comfort are also improved.

7. Plant discoloration: The autumnal equinox solar terms are the moment when everything in nature changes, especially the leaf color of plants. With the decrease of temperature and the shortening of sunshine time, chlorophyll in plant leaves gradually decreases, and other pigments are gradually exposed, which makes the leaves show colorful colors and form a beautiful autumn landscape.

Generally speaking, the climate characteristics of the autumnal equinox solar terms are gradually decreasing temperature, blue sky, increasing rainfall, increasing wind, decreasing humidity and discoloring plants. These characteristics indicate that people can feel obvious seasonal changes in late summer and early autumn. Different regions have their own climate characteristics, so the specific climate change may be different.