Does the cold winter have anything to do with the weather?

"Winter" is an idiom in China, which is used to describe a period when the weather is very cold. The "cold winter" in this idiom refers to winter, especially the coldest period in winter; "twelfth lunar month" refers to the last month of the lunar calendar, which is the twelfth lunar month. Traditionally in China, the twelfth lunar month is one of the coldest months in a year, especially in the north, where the weather is cold and covered with snow and ice, so the idiom "the twelfth lunar month in winter" is really related to the weather conditions.