Many old people in rural areas use seasonal weather to judge the weather and harvest in the coming year. Is this scientific?

In April in Tomb-Sweeping Day, the weather in most parts of our country is already hot, so there is? After Tomb-Sweeping Day took off his cotton-padded coat, Tomb-Sweeping Day became hotter every day. ? Statement. But there will still be cold waves from time to time, or hot and cold. There is a saying in many areas that it is cold in Tomb-Sweeping Day. For example, it has been cold for more than ten days after Qingming Festival, so I don't wear cotton-padded clothes. Don't be happy after Tomb-Sweeping Day, there are still ten days of cold.

There will be ten cold days after the Qingming holiday? Wait a minute. Time flies, time flies, and before you know it, it's the eighth day of the fourth lunar month. April 8 is a well-known special day for American farmers. I remember when I was a child, I often heard adults say that after April 8, all the seedlings in the field laughed, not afraid of the frost in the dark.

I didn't know what it meant then, and I still don't know what it meant, that is, the crops will not be frozen again. It shows that there will always be a cold wave and cold air around April 8 every year, and the temperature will drop sharply, causing frost and serious freezing damage to crops. Although many proverbs have strong regional attributes, it is generally hoped that Tomb-Sweeping Day will have a sunny day. As the saying goes, there must be sunshine when it is sunny, and there must be rain in Grain Rain.

In Hunan and other places, there are? Sunny sunshine, good year after year? And then what? Clear and bright, Man Cang in the valley; Grain Rain is dark, with thousands of grains. In Jiangxi, there are also? Riverside map on Qingming Festival? Statement. If the weather in Tomb-Sweeping Day is cold, it may be a bad sign. For example, in Shandong and other places? Qingming is unclear, insects are full of troubles, Qingming is unclear, and October 1 ST is unclear? In Guangdong, Guangxi, and other places, the river overflows the embankment; The clear and bright river plummeted.

Jiangxi, there is a proverb? Qingming is unclear, and the spring rain is about to drip? There is more rain in a year. Besides, what do people often say? Will the old duck freeze to death on April 8? It is also a natural law discovered by our ancestors through countless observations of climate change, that is, around the eighth day of the fourth lunar month, there will be a wave of cold air going south, and the temperature will plummet, even the hardy old ducks will freeze to death. It means that the weather is very cold, which is also a coincidence, or the old saying works. This is unknown to meteorological information.