Is there any difference between the winter solstice and the Spring Festival?

There is a folk saying that the winter solstice is sunny and the Spring Festival is cloudy. If the weather is very clear and there is no rain or snow on the solstice in winter, the probability of snow is very high. Around the Spring Festival. This cloudy day doesn't just represent the weather. This situation can be understood as rain and snow.

The reason is that the ancients discovered some laws of climate change in long-term observation. There is a solar term every 15 days, and the multiple between each solar term will find the corresponding change of the weather. The relationship of this multiple is between 30/60 days and 180 days, and the laws of these changes are either opposite or echo.

Meteorological change

After the winter solstice, although the solar altitude angle gradually rises, it is a slow recovery process. The heat lost every day is still greater than the heat received, showing a situation of "making ends meet". "39, 49", the least accumulated heat, the lowest temperature, the weather is getting colder and colder.

China is a vast country with different climates and landforms. Although the days from winter solstice are short, the temperature from winter solstice is not the lowest; It won't be very cold before the winter solstice, because there is still "heat accumulation" on the surface. The really cold winter is after the winter solstice. Due to the great differences in climate in different parts of China, the climate characteristics of this day obviously lag behind most parts of China.

Baidu encyclopedia-winter solstice