What month does it usually start to pick up?

Warm time is usually in March. Warming, a Chinese word, means that the weather is getting warmer from cold. The weather changed from cold to warm. According to the solar terms in China, the temperature will gradually increase after beginning of spring. Specifically, it is usually one month to one and a half months after beginning of spring, and the weather is warm. However, the temperature in the northern region will not start warming up until at least around Tomb-Sweeping Day. Solar term is a special festival in the trunk and branch calendar that expresses the change of natural rhythm and establishes "December construction" (monthly order). The 24 solar terms are: beginning of spring, Rain, Sting, Equinox, Qingming, Grain Rain, Changxia, Xiaoman, Mangzhong, Summer Solstice, Xiaoxia, Daxia, beginning of autumn, Early Summer, Bailu, Autumn Equinox, Cold Dew, Early Frost, beginning of winter, Light Snow, Heavy Snow, Winter Solstice, Slight Cold and Severe Cold. The twenty-four solar terms are related to cadres and gossip and have a long history. In the historical development, the 24 solar terms have been incorporated into the lunar calendar and become an important part of the lunar calendar.