Dulan County

Dulan County is a county of east-central Qinghai province, China. It is under the administration of Haixi Mongol and Tibetan Autonomous Prefecture.

Climate
With an elevation of around 3200 m, Dulan County has a subalpine semi-arid climate (Köppen BSk), with long, very cold and winters, and warm summers. Average low temperatures are below freezing from early/mid October to mid/late April; however, due to the wide diurnal temperature variation, only December and January have an average high that is below freezing. With monthly percent possible sunshine ranging from 60% in July to 81% in November, the county seat is very sunny, receiving 3,092 hours of bright sunshine annually; relative humidity in all months is below 50% and is for seven months below 40%. The monthly 24-hour average temperature ranges from −9.6 °C in January to 15.2 °C in July, while the annual mean is 3.41 °C. Over 70% of the annual precipitation of 218 mm is delivered from May to August.

Administrative divisions
Dulan County is divided into 4 towns and 4 townships.

Transport

 * China National Highway 109