What solar terms directly reflect precipitation?

The solar terms related to precipitation include rain, fright, vernal equinox, Grain Rain, Xiaoman, Mangzhong, Summer Solstice, Dashu, beginning of autumn, White Dew, Cold Dew, First Frost, beginning of winter, Light Snow, Heavy Snow and Winter Solstice. Among these solar terms, rain and Grain Rain are two solar terms that directly reflect precipitation, while other solar terms are more widely related to factors such as temperature and agricultural activities.