Dulan County

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Dulan County
ᠳᠤᠯᠠᠭᠠᠨ ᠰᠢᠶᠠᠨ
都兰县
County
Dulan is located in Qinghai
Dulan
Dulan
Location in Qinghai
Coordinates: 36°18′N 98°05′E / 36.300°N 98.083°E / 36.300; 98.083Coordinates: 36°18′N 98°05′E / 36.300°N 98.083°E / 36.300; 98.083
Country People's Republic of China
Province Qinghai
Autonomous prefecture Haixi
Township-level divisions 4 towns
4 townships
Elevation 3,194 m (10,479 ft)
Time zone China Standard (UTC+8)
Postal code 816100

Dulan County (Mongolian:ᠳᠤᠯᠠᠭᠠᠨ ᠰᠢᠶᠠᠨ simplified Chinese: 都兰县; traditional Chinese: 都蘭縣; pinyin: Dūlán Xiàn) is a county of east-central Qinghai province, China. It is under the administration of Haixi Mongol and Tibetan Autonomous Prefecture.

Climate[edit]

With an elevation of around 3,200 metres (10,000 ft), 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 six months below 40%. The monthly 24-hour average temperature ranges from −9.8 °C (14.4 °F) in January to 14.8 °C (58.6 °F) in July, while the annual mean is 3.16 °C (37.7 °F). Over 70% of the annual precipitation of 194 mm (7.64 in) is delivered from May to August.

Climate data for Dulan County (1971−2000)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average high °C (°F) −2.5
(27.5)
0.4
(32.7)
5.3
(41.5)
11.0
(51.8)
15.9
(60.6)
19.0
(66.2)
21.4
(70.5)
21.2
(70.2)
16.5
(61.7)
10.2
(50.4)
3.6
(38.5)
−0.9
(30.4)
10.1
(50.2)
Average low °C (°F) −14.9
(5.2)
−11.7
(10.9)
−6.6
(20.1)
−1.8
(28.8)
2.9
(37.2)
6.6
(43.9)
9.0
(48.2)
8.4
(47.1)
4.0
(39.2)
−2.2
(28)
−8.8
(16.2)
−13.3
(8.1)
−2.4
(27.7)
Precipitation mm (inches) 4.0
(0.157)
4.8
(0.189)
8.4
(0.331)
9.1
(0.358)
24.7
(0.972)
41.7
(1.642)
46.5
(1.831)
26.5
(1.043)
14.8
(0.583)
5.9
(0.232)
3.9
(0.154)
3.5
(0.138)
193.8
(7.63)
Avg. precipitation days (≥ 0.1 mm) 4.4 3.6 4.6 3.5 6.6 9.6 11.3 7.5 5.2 2.9 2.3 3.7 65.2
 % humidity 42 37 34 31 47 46 49 45 43 36 34 38 40.2
Mean monthly sunshine hours 231.8 220.4 250.2 278.1 288.1 268.3 268.0 278.3 257.0 271.7 248.0 231.9 3,091.8
Percent possible sunshine 75 72 68 71 66 62 60 66 69 78 81 77 70.4
Source: China Meteorological Administration

Transport[edit]

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