Climatic characteristics of solar terms in autumnal equinox

The climatic characteristics of the autumnal equinox solar terms are: the temperature gradually decreases, the temperature difference between day and night increases, the sky is clear, the rainfall decreases, the wind increases and the climate is dry.

1, the temperature drops gradually.

At the autumnal equinox, the temperature began to drop gradually, marking the gradual passing of the hot summer and entering the cool autumn. The temperature during the day began to decrease gradually, and the temperature at night also decreased obviously.

2. The temperature difference between day and night increases.

With the advent of the autumnal equinox, the temperature difference between day and night gradually increases. Although there is still some warm sunshine during the day, the temperature drops rapidly at night, which makes the temperature difference between day and night increase obviously.

3. The sky is clear

In the autumn equinox, the sky is usually blue, the weather is clear and there are fewer clouds. This makes the sun shine on the ground through the clear sky, giving people a bright and refreshing feeling.

4. Decreased rainfall

Compared with the rainy season in summer, the rainfall in autumn equinox usually decreases. Although there is still rain, the frequency and precipitation of rainfall are relatively low.

5, the wind increases

At the autumnal equinox, the wind usually increases. The change of cool temperature and air pressure makes the wind speed increase, and sometimes there will be more wind, which brings people a cool and fresh feeling.

6. The climate is dry

The relative humidity is low and the climate is dry at the autumnal equinox. This is because the rainfall in autumn is reduced and the wind is strong, resulting in relatively low air humidity.