When is the coldest time in winter?

The solar terms with the lowest temperature in a year are slight cold and severe cold, and entering slight cold marks the beginning of the coldest day of the year.

1, slight cold is the 23rd solar term among the 24 solar terms in the lunar calendar and the fifth solar term in winter, which marks the official start of the season and winter. The sun is located at 285 degrees of the yellow meridian. For China, a slight cold marks the beginning of the coldest day of the year. According to China's meteorological data, slight cold is the lowest temperature solar term, and the temperature of great cold is lower than slight cold in only a few years.

The Great Cold is the last of the 24 solar terms. Every year around 65438+10.20, when the sun reaches 300, it is a severe cold. At this time, the cold wave frequently goes south, which is the coldest period of the year in most parts of China. The wind is strong, the temperature is low, and the snow on the ground does not melt, showing a cold scene of ice and snow. During this period, railway, post and telecommunications, petroleum, shipping and other departments should pay special attention to take measures to prevent severe weather such as strong winds and blizzards as soon as possible. Agriculture should strengthen the cold and antifreeze of livestock and wintering crops.