中华万年历

霜降是二十四节气中的第十八个节气，也是秋季的最后一个节气。每年公历10月23日或24日，当太阳到达黄经210°时为霜降。"霜降"表示天气渐冷、初霜出现的意思，是秋季到冬季的过渡节气。《月令七十二候集解》说："九月中，气肃而凝，露结为霜矣。"此时气温骤降，昼夜温差大，空气中的水汽在地面凝结成白色晶体——霜。霜降并不是表示"降霜"，而是表示气温骤降、昼夜温差大。霜降时节，万物毕成，毕入于戌，阳下入地，阴气始凝。秋将尽，冬将至，天地之间一片萧瑟，但也是秋收冬藏的关键时期。霜降时节的景色别有一番韵味，枫叶如火、菊花怒放、柿子红透，构成了深秋最美的画卷。

Frost Descent (Shuangjiang) is the 18th solar term among the 24 solar terms and the last solar term of autumn, occurring around October 23-24 when the sun reaches 210 degrees celestial longitude. "Frost Descent" signifies weather growing cold with initial frost appearing, marking the transitional solar term from autumn to winter. The "Collected Explanations of the Seventy-Two Pentads" states: "Ninth month middle, qi becomes solemn and congeals, dew crystallizes into frost." At this time, temperatures plummet, day-night temperature differences are large, and water vapor in the air condenses into white crystals on the ground - frost. Frost Descent doesn't literally mean "frost falling" but rather indicates sudden temperature drops and large diurnal temperature differences. During Frost Descent, all things have matured, autumn will end and winter approaches, presenting a desolate landscape between heaven and earth, yet it is also the critical period for autumn harvest and winter storage. Frost Descent scenery possesses unique charm - maple leaves blaze like fire, chrysanthemums bloom defiantly, persimmons ripen to deep red, composing deep autumn's most beautiful tableau.