When is it cold in the north?

The coldest weather is on March 9 and April 9. From the solstice in winter (usually around 65438+February 22nd), every nine days is nine, which is called "counting nine", and * * * has nine. So March 9th and April 9th should be around the middle and late of June 5438+ 10. As the saying goes, "Walking on the ice on March 9th and April 9th" means that these days are the coldest time of the year.

The proverb "99 Songs" goes like this: 1929 Don't shoot; Walking on the ice in 3949; 5969 see willows along the river; 79 rivers open 89 geese; 99 plus 19, plowing cattle everywhere.