What does the first frost mean?

The first frost is the eighteenth of the twenty-four solar terms and the last solar term in autumn. On the Gregorian calendar, the festival is held on 10 from 23rd to 24th, that is, 10. After entering the first frost, the scene of late autumn is obvious, and the cold air goes south more and more frequently. The first frost does not mean "frost", but refers to the sudden drop in temperature and the large temperature difference between day and night. As far as the national average is concerned, the "first frost" is the season with the largest temperature difference between day and night in a year.

The first frost solar terms mainly include enjoying chrysanthemums, eating persimmons, climbing high and overlooking, and tonic.