When was the first first frost in 2022?

The frost solar terms in early 2022 are 20221October 23rd 10, Gregorian calendar 18: 35, 3 1 sec, and September 28th of the lunar calendar. The first frost, the eighteenth of the twenty-four solar terms, is the last solar term in autumn. After entering the first first frost solar term, the scene of late autumn is obvious, and the cold air moves southward more and more frequently. In meteorology, the first frost in autumn is generally called "first frost" or "first frost", while the last frost in next spring is generally called "late frost" or "final frost".

Introduction to the first frost:

As a solar term reflecting the characteristics of climate change, the first frost begins from 22 to 24 on 10 of the Gregorian calendar every year, and begins to appear when the sun reaches 2 10 degrees of the yellow meridian. It is the18th solar term among the 24 solar terms and the last solar term in autumn. The ancient book "Twenty-four solar terms" said that the first frost: "In mid-September, the gas stagnates and becomes frost", but in fact, the first frost is not "frost" or frost falls from the sky, but a natural phenomenon that the water vapor near the ground becomes small ice crystals due to temperature changes.