Withered grass frost white, cold window moon new shadow
"Frost" is the intersection of autumn and winter, began to frost, at this time persimmon delicious. In frost season, chrysanthemums are blooming in many places, and chrysanthemum meetings will be held in many places to enjoy chrysanthemum drinking. Frost season is full of maple leaves red, and at this time is also the season of red leaves.
Frost is the 18th of the 24 solar terms and the last one in autumn. Douzhixu, the Yellow meridian of the sun is 210 ° and the festival is held on October 23-24 of the Gregorian calendar. Frost fall does not mean "frost fall", but a sudden drop in temperature and a large temperature difference between day and night. In the frost season, all things are completed, finished in Xu, the sun goes down into the earth, the Yin Qi begins to condense, and the cold weather begins with frost.