When is the first frost of cold dew?

Cold dew and first frost belong to autumn. Cold dew is the17th solar term among the 24 solar terms, and it is also the fifth solar term in autumn. Generally speaking, the time is 65438+1October 7 -9 in the Gregorian calendar every year. After the cold dew, the cold gradually grows, and you can feel the cold sooner or later. The first frost is the18th solar term among the 24 solar terms, and it is also the last solar term in autumn. The time is usually every year.