Which is colder, March 9, 2022 or the Great Cold?

Lead: 39 days refers to a period of time from the beginning of the winter to the solar term, with nine, nine and eighty-one days before and after. The severe cold solar term refers to extremely cold weather. The great cold solar term is after the winter solstice solar term, so the great cold festival is also within three or nine days. So, is March 9, 2022 the coldest or the coldest in the great cold? Which is colder, Sanjiu or Dahan? Come and have a look with me.

Is March 9, 2022 the coldest or the coldest in the great cold?

2022 Sanjiu is the coldest. Judging from the number nine, the temperature is coldest on March 9 and April 9 every year. At this time, it just ushered in the solar terms of slight cold and severe cold, so the temperature was the lowest in the whole year.

It seems that during the winter solstice, the daytime is the shortest and the sunshine intensity is the lowest, and then the daytime begins to extend. However, due to the low heat received by the earth, the daytime is prolonged slowly, and only 1 minute/day is extended from winter to March 9, so the ground heat budget is still negative and continues to lose heat, so the ground temperature is decreasing and the temperature is getting colder and colder, which will not be reversed until March 9. In addition, during "March 9" and "April 9", the Siberian cold air mass became stronger and stronger. With the southward movement of cold air, the temperature in the central and eastern regions of China is also low, so there is a saying of "March 949 on the ice".

This winter's "March 9th" time is from 65438+1October 8th to 65438+1October 6th, 2022, and "April 9th" is from 65438+1October 17 to 65438+/kloc. So, is June 2022 the coldest winter? In fact, March 9 and April 9 are not necessarily the coldest. For example, last winter, the coldest weather appeared in September 19 and February 9. At that time, two "overlord-level cold waves" broke out, and the temperature dropped significantly in most parts of the south, not to mention the north. Nanjing is as low as-65,438+00℃. But on March 9th and April 9th, the national temperature was obviously higher than 2℃, and everyone had a warm Spring Festival.

Therefore, it is unscientific to judge the coldest year by "39" and "49".

Cold wave weather

In fact, there are also related agricultural proverbs in rural areas to predict the situation in winter. For example, the agricultural proverb "The solstice in winter is in the middle of the month, and winter is very hot" is very straightforward. If the winter solstice falls in the middle of the lunar calendar 1 1 month, it means that this winter is not too cold and generally warm, so the southern region can spend the winter without wearing cotton-padded jackets.

However, as early as a few months ago, when the National Climate Center predicted the temperature situation this winter, it said that the weather was warmer in 65438+February, but the cold air activity was stronger in1-February, with large fluctuations in cold and warm. It is predicted that the temperature in the middle and late part of 2022 1 will be lower than normal, and the temperature may be even lower then.

Spring Festival weather

From this point of view, I'm afraid the temperature on March 9 and April 9 is really cold, so is it cold during the Spring Festival?

In 2022, the Lunar New Year is February 1 day, which coincides with May 9th. At this time, it is closer to the middle and late period of the official forecast of 1. It is estimated that the temperature will not be too high, and the overall temperature should be lower than normal. So everyone should take precautions.

Of course, there is still a saying in rural areas that "June 9 is not cold, and spring is chilly", which means that if the temperature is not too cold during March 9, it may mean that the cold wave will come late and will not come until June 9. Therefore, farmers should also pay attention to weather changes and do a good job in crop prevention.