The weather on January 15th.

Cover the moon with clouds before it snows. There are clouds, and then there are snow lanterns.

"Yun Zheyue August 15th, Snow Lantern January 15th" reflects the corresponding relationship of holiday weather.

Mid-Autumn Festival is a traditional folk festival in China. As the saying goes, it is clear from the moon to the Mid-Autumn Festival. On the night of Mid-Autumn Festival, the bright moon is in the sky, and silver light shines on the earth. On this pleasant and quiet night, people get together to enjoy the moon and tell children stories about the Goddess Chang'e flying to the moon, osmanthus tree and Jade Rabbit.

If the sky is dark, it will be disappointing! But it means that the Lantern Festival, another traditional festival in China, is full of snowflakes and excitement when everyone lights it.

The weather relationship between these two traditional festivals has always been concerned by people. As time goes by, in many places, if it is cloudy on August 15, snow will appear on August 65438+ 10/5. So people summed up a weather proverb: "On August 15th in Yun Zheyue, it snows on January 15th", which is very popular.

Of course, the rhythmic activity of the atmosphere is a very complicated problem. Its causes, conditions, performance and many other aspects are not clear, and this regularity is not comparable to every place and year.

At present, many meteorologists are deeply studying the rhythmic activities of the atmosphere and their causes. The research results in this field are undoubtedly of great significance to the development of long-term weather forecast.