The hot summer will pass and the temperature gradually decreased significantly.
白露 White Dew (15th solar term)Sep.7,8 or 9

Temperatures began to fall, cooler weather in the morning with dew on the grass. So white Dew is actually a symbol of cooler weather.
秋分 the Autumn Equinox (16th solar term)Sep.22,23 or 24

At that time the sun appears to be directly over Earth's equator, and the lengths of the day and the night are equal over most of the planet.
寒露 Cold Dew (17th solar term)Oct.8 or 9

Temperature becoming lower. Dew on the ground becoming cold, almost condensed into a frost.
霜降 Frost’s Descent (18th solar term)Oct.23 or 24

Weather getting cold,start with frost in some place. Frost is the symbol of cold and the performance of the cold is killing the enemies of crop.
立冬 the Beginning of Winter (19th solar term)Nov.7 or 8

Beginning of winter is that the onset of winter, people collect all things to avoid cold. Since then the surface heat storage in summer half year still have a certain residual, it is generally not too cold.
小雪 Lesser Snow (20th solar term)Nov.22 or 23

This time the weather is gradually cooling. Although it began to snow, generally less snow.
大雪 Greater Snow (21th solar term)Dec.6,7 or 8

Weather become much colder and the greater possibility of snow, but does notnecessarily mean big snowfall.
冬至 the Winter Solstice (22th solar term)Dec.21,22 or 23
小寒 Lesser Cold (23th solar term)Jan.5,6 or 7

It also shows the changes of cold temperature in the solar terms. The weather has been very cold already.
大寒 Greater Cold (24th solar term)Jan.20 or 2

Greater Cold is the most cold period of the year in China, big wind, low pemperature and the ground was covered with snow, showing a frozen, cold of winter scenes.