Is the first frost the last day of autumn?

The first frost is not the last day of autumn, beginning of winter is the last day of autumn, and the first frost is the last solar term of autumn.

The first frost solar terms are characterized by cold weather in the morning and evening, hot weather at noon and large temperature difference between day and night. Because "frost" is a manifestation of cold weather and large temperature difference between day and night, it is named "first frost", which means "sudden drop in temperature and large temperature difference between day and night".

The first frost solar term, everything ends, ends, the sun goes down to the ground, and the yin begins to condense. The first frost does not mean "frost", but refers to the sudden drop in temperature and the large temperature difference between day and night. After the first frost solar term, the scene of late autumn is obvious, and the cold air goes south more and more frequently.

Precautions for first frost

Pay attention to "keeping out the cold outside and clearing heat inside" in the first frost.

The first frost season is the turning point of autumn and winter climate, and it is also the transition of the spirit of the sun from being hidden. The key to health care should pay attention to "keeping out the cold outside and clearing heat inside". There is a folk saying that it is better to make up the first frost in winter. In autumn, the spleen and stomach are the foundation of the day after tomorrow. At this time, tonic is appropriate, especially strengthening the spleen and nourishing the stomach to nourish the day after tomorrow. In the first frost season, most parts of China enter the dry season, so we should attach great importance to forest protection and fire prevention.

The ancients in China divided the first frost into three stages: jackals sacrificing animals, yellow vegetation and stinging insects. In the first frost season, most parts of the north have entered the autumn harvest, and even cold-resistant onions can no longer grow. In the south, it is the peak season of "Sanqiu". Only single-season hybrid rice and late rice are harvested, and early-season wheat and early-season rape are planted. Picking cotton, pulling cotton stalks, ploughing and soil preparation.