How many days is the annual average temperature below 10 degrees in Huanjiang County, Guangxi?

The number of days when the annual average temperature in Huanjiang County of Guangxi is below 10 degrees is no more than 30 days.

Huanjiang Maonan Autonomous County belongs to the subtropical monsoon climate zone, with mild climate, abundant rain and sunshine, no severe cold in winter, no heat in summer, the same season of rain and heat, and a long frost-free period. The annual average temperature in southern Qiu Ling is 19.9℃,15.7℃; In the northern mountains. 1 monthly average temperature 10. 1℃, and the average temperature in July is 28℃; ; The lowest temperature over the years is-5.2℃, the frost-free period is 290, and the annual average sunshine hours 145.438+0 hours. The annual solar radiation is 98.89 kcal/cm2.

The average annual rainfall is1.750mm in the north and 1.389. 1 mm in the south, which is concentrated from April to September, accounting for 70% of the annual rainfall. The minimum rainfall over the years is 922.8 mm, evaporation 1. 1mm, and the average relative humidity of the air is 79.

Huanjiang River is located in the north of Guangxi and the southeast of Yunnan-Guizhou Plateau. The overall terrain is high in the north and low in the south, surrounded by mountains, with hills in the middle and a little basin. Located on the northern edge of the Tropic of Cancer, the county belongs to the monsoon climate zone of transition from south subtropical zone to middle subtropical zone. The southern margin belongs to the northern margin of the south subtropical zone, and the central and southern parts and the large and small river basins belong to the middle subtropical valley climate. These two areas have mild climate, abundant rainfall, abundant sunshine, long frost-free period, the same season of rain and heat, and crops can be harvested three times a year. The northern part belongs to subtropical mountainous climate, characterized by cool climate, wet and rainy, rainy and hot in the same season, and the heat condition can be harvested twice a year. Due to the complex terrain and geographical location, the disastrous weather in this county is frequent, such as drought, waterlogging, wind hail and frost, which has a great impact on the industrial and agricultural production and people's life in this county.