Isn't it cold at the vernal equinox

Generally, the weather is not cold at the vernal equinox.

The vernal equinox is the fourth solar term in spring among the 24 solar terms, which is about the intersection point from March 19 to March 22 every year. After the vernal equinox, the temperature in most parts of southern China began to rise, and the climate was mild, rainy and sunny, which was the spring growth stage of overwintering crops in most areas.

Generally speaking, the weather has started to warm up after the vernal equinox, but there is often a cold air invading South China around the vernal equinox, that is, the climate will drop significantly, so there will still be a cooling phenomenon, which is called "late spring cold". During the vernal equinox, the daily average temperature in all parts of China rose steadily to above 0℃ except the alpine mountain area and the area north of 45 north latitude.

The temperature is getting warmer.

The severe cold has passed, and the temperature rises rapidly, especially in North China and Huanghuai Plain. The daily average temperature rises to above 10℃ almost at the same time as the rainy areas along the Yangtze River and the south of the Yangtze River, entering a bright spring. On the vast land, on the bank of willow green, the grass grows in Fei Ying, the wheat is jointing, the rape blossoms are fragrant, the peach blossoms are red, and Li Bai is coming in spring. South China is a scene of late spring.

The vernal equinox usually refers to the moment when the sun meridian is at 0. At this time, the seasons in the northern hemisphere are opposite, the vernal equinox in the northern hemisphere and the autumnal equinox in the southern hemisphere. After the vernal equinox, the temperature will rise in most parts of the south. Generally, in late March, the average temperature in northern South China ranges from 13 to 15 degrees Celsius, and in southern South China it is mostly 15-65438.