Geographical environment of Qianyang county

The altitude of the territory is 7 10- 1545.5 meters, with a relative height difference of 835.5 meters. The climate belongs to the semi-humid climate in the temperate continental monsoon region. The natural climate is characterized by four distinct seasons: cold, warm, dry and wet, dry temperature, uneven precipitation and frequent disasters. It is rainy in autumn, cold in winter, monsoon in spring and cool in summer.

1960 ~ 2000, the average temperature in Qianyang county was 1 1.8 degrees, the hottest month was July, the monthly average temperature was 24.5 degrees, the most Leng Yue was 65438+ 10, and the monthly average temperature was-1.6 degrees.

The annual average temperature in Qianyang County is between 8.7- 1 1.8 degrees. The annual average pressure is 928.4 hectopascals, the highest pressure is 940.8 hectopascals, and the lowest pressure is 9 19.5 hectopascals. Winter and spring are controlled by the ground cold and high pressure, with high air pressure, drought, little rain and snow, and frequent cold waves. In summer, the low pressure is obvious, and the high temperature and humidity are rainy and rainy. Thunderstorm, gale, hail and dry weather seriously threaten summer grain production, and summer drought and high temperature seriously restrict the high yield of autumn grain and cash crops. The annual average relative humidity is 69%, 1 month and the lowest monthly average humidity is 59%, and the highest monthly average humidity is 82%. It is dry in winter and spring, dusty and rainy and humid in autumn. The annual average rainfall is 627.4 mm, with the maximum rainfall of 924.3 mm (64 years) and the minimum rainfall of 378.9 mm (95 years). The difference between the largest and smallest is 545.4 mm. ..