Causes of weather conditions in Chengdu

Chengdu climate Chengdu belongs to subtropical humid monsoon climate, with mild climate, four distinct seasons, long frost-free period, abundant rainfall and little sunshine. The annual average temperature for many years is 16.2℃, the annual maximum temperature is 37.3℃, the annual extreme minimum temperature is -5.9℃, the hottest month appears in July and August, the monthly average temperatures are 25.4 and 25.0℃, and Leng Yue appears in 65,438+10, with the monthly average temperature of 5.6℃. The annual total precipitation is 9 18.2mm, and the rainfall is mainly concentrated in July and August, with monthly rainfall of 225 and 229 mm respectively. The months with the least rainfall are 12 and 1, and the monthly rainfall is about 6 mm respectively. The rainstorm period generally occurs from May to September, and the perennial rainstorm occurs at the end of June, early July and late August respectively. There is no severe cold in winter, which is beneficial to the development of Koharu and animal husbandry. The continuous foggy weather has a great influence on traffic and shipping, with dry winter and few photos. Snow is rare in Chengdu, and it is only once or twice a year at most. The climate of Chengdu Plain belongs to subtropical humid monsoon climate. The annual average temperature is about 65438 08℃. The annual average precipitation is above 1000mm, and the annual rainy days are about 300 days, which is foggy, making it one of the regions with the most rainy days in China. However, because the plain is adjacent to the western Sichuan Plateau, it is deeply affected by the sinking of cold air in mountainous areas, and most of the river water in the plain comes from the melting water of snow and ice in the western plateau and mountainous areas. At the same time, in the low-lying ancient river area on the plain, the groundwater level is high and the soil is wet and cold. Therefore, the air temperature, water temperature and ground temperature in Chengdu Plain are low, and the thermal conditions are slightly worse than those in other areas of Sichuan Basin.