Characteristics of heavy snow
When the sun reaches the longitude of 255 degrees, the node time is 65438+February 6-8 in Gregorian calendar every year. The solar term of heavy snow is the beginning of the second month of the dry calendar, marking the official start of the mid-winter season.
Like the light snow solar term, the heavy snow solar term is a solar term reflecting the changing trend of temperature and precipitation, and it is also a reflection of ancient farming culture on festivals. Heavy snow is a solar term reflecting climate characteristics. Heavy snow solar terms are characterized by a significant drop in temperature and an increase in precipitation.
Snow solar term is a climate concept, which represents the climate characteristics during the snow solar term, namely temperature and precipitation. The heavy snow in solar terms and the heavy snow in weather have different meanings. In fact, the snow in heavy snow solar terms is often not as big as that in light snow solar terms, and the solar terms with the largest amount of snow in the whole year are not in light snow and heavy snow solar terms.
For example, in the middle and lower reaches of the Yellow River, the solar term with the most snow all year round is neither "light snow or heavy snow" nor "slight cold or severe cold", but "rain" in spring. This snow is not the biggest in the solar terms.