| Youyu County 右玉县Yuyu | |
|---|---|
| County | |
 Youyu in Shuozhou | |
.png) Shuozhou in Shanxi | |
| Coordinates: 39°59′20″N 112°28′01″E / 39.989°N 112.467°E / 39.989; 112.467 | |
| Country | People's Republic of China |
| Province | Shanxi |
| Prefecture-level city | Shuozhou |
| Area | |
| • Total | 1,987 km (767 sq mi) |
| Population | |
| • Total | 88,212 |
| • Density | 44/km (110/sq mi) |
| Time zone | UTC+8 (China Standard) |
| Youyu County | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Traditional Chinese | 右玉縣 | ||||||||
| Simplified Chinese | 右玉县 | ||||||||
| |||||||||
| Former names | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Shanwu | |||||||||
| Traditional Chinese | 善無 | ||||||||
| Simplified Chinese | 善无 | ||||||||
| |||||||||
| Yanmen Commandery | |||||||||
| Traditional Chinese | 雁門郡 鴈門郡 | ||||||||
| Simplified Chinese | 雁门郡 | ||||||||
| Literal meaning | Yanmen Pass Commandery | ||||||||
| |||||||||
Youyu County, also known by its Chinese name Youyuxian, is a county under the administration of the prefecture-level city of Shuozhou, in the northwest of Shanxi Province, China. It borders Inner Mongolia to the north and west.
History
Shanwu, south of present-day Youyuxian, was the seat of Yanmen Commandery during the Qin and Western Han. The post moved to Yinguan southeast of present-day Shuozhou under the Eastern Han and further south to Daixian under the Kingdom of Wei.
Geography
Elevations are generally higher in the south of the county, in which flows the Cangtou River (苍头河); Youyu reaches a north-south extent of 67.7 km (42.1 mi) and east-west width of 45.7 km (28.4 mi). The Great Wall demarcates the northwestern border with Inner Mongolia's Liangcheng and Horinger counties; within the province, Youyu borders Zuoyun County to the east, Shanyin County and Pinglu District to the south.
Climate
Youyu has a monsoon-influenced, humid continental climate (Köppen Dwb), with cold and very dry winters, and warm, humid summers. The monthly 24-hour average temperature ranges from −14.3 °C (6.3 °F) in January to 19.9 °C (67.8 °F) in July, and the annual mean is 4.2 °C (39.6 °F). June thru September accounts for over three-fourths of the 407 millimetres (16.0 in) of annual precipitation. Due to the high elevation and dry climate, the diurnal temperature variation averages 16 °C (29 °F) annually.
| Climate data for Youyu, elevation 1,346 m (4,416 ft), (1991–2020 normals, extremes 1971–2010) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 8.7 (47.7) |
17.8 (64.0) |
24.1 (75.4) |
32.5 (90.5) |
33.4 (92.1) |
37.7 (99.9) |
37.0 (98.6) |
33.1 (91.6) |
33.1 (91.6) |
26.8 (80.2) |
19.5 (67.1) |
13.8 (56.8) |
37.7 (99.9) |
| Mean daily maximum °C (°F) | −4.2 (24.4) |
0.4 (32.7) |
7.3 (45.1) |
15.4 (59.7) |
21.6 (70.9) |
25.7 (78.3) |
27.1 (80.8) |
25.3 (77.5) |
20.5 (68.9) |
13.5 (56.3) |
4.7 (40.5) |
−2.7 (27.1) |
12.9 (55.2) |
| Daily mean °C (°F) | −14 (7) |
−9.2 (15.4) |
−1.2 (29.8) |
7.0 (44.6) |
13.7 (56.7) |
18.3 (64.9) |
20.2 (68.4) |
18.1 (64.6) |
12.5 (54.5) |
5.0 (41.0) |
−3.8 (25.2) |
−11.5 (11.3) |
4.6 (40.3) |
| Mean daily minimum °C (°F) | −21.7 (−7.1) |
−17.1 (1.2) |
−9.1 (15.6) |
−1.8 (28.8) |
4.6 (40.3) |
10.2 (50.4) |
13.6 (56.5) |
11.7 (53.1) |
5.5 (41.9) |
−1.8 (28.8) |
−10.3 (13.5) |
−18.4 (−1.1) |
−2.9 (26.8) |
| Record low °C (°F) | −37.3 (−35.1) |
−33.7 (−28.7) |
−29.3 (−20.7) |
−17.4 (0.7) |
−12.6 (9.3) |
−2.1 (28.2) |
3.0 (37.4) |
0.7 (33.3) |
−8.0 (17.6) |
−14.0 (6.8) |
−32.2 (−26.0) |
−35.5 (−31.9) |
−37.3 (−35.1) |
| Average precipitation mm (inches) | 2.5 (0.10) |
4.2 (0.17) |
8.8 (0.35) |
21.5 (0.85) |
41.0 (1.61) |
58.2 (2.29) |
105.6 (4.16) |
94.5 (3.72) |
55.8 (2.20) |
25.9 (1.02) |
8.4 (0.33) |
2.1 (0.08) |
428.5 (16.88) |
| Average precipitation days (≥ 0.1 mm) | 2.7 | 3.4 | 4.7 | 4.8 | 6.7 | 10.7 | 12.4 | 12.0 | 9.3 | 5.9 | 3.7 | 3.0 | 79.3 |
| Average snowy days | 4.4 | 4.9 | 4.8 | 2.2 | 0.3 | 0 | 0 | 0 | 0 | 1.1 | 4.2 | 4.7 | 26.6 |
| Average relative humidity (%) | 61 | 56 | 48 | 43 | 44 | 55 | 68 | 72 | 69 | 64 | 62 | 61 | 59 |
| Mean monthly sunshine hours | 205.3 | 205.2 | 244.4 | 266.1 | 285.5 | 262.9 | 252.6 | 244.8 | 225.9 | 231.9 | 205.0 | 197.0 | 2,826.6 |
| Percent possible sunshine | 68 | 67 | 66 | 66 | 64 | 59 | 56 | 58 | 61 | 68 | 69 | 68 | 64 |
| Source 1: China Meteorological Administration | |||||||||||||
| Source 2: Weather China | |||||||||||||
References
Citations
- Shānxī: Prefectures, Cities, Districts and Counties
- ^ Xiong (2009), s.v. "Yanmen".
- Li (2017), s.v. "Yanmen".
- 中国气象数据网 – WeatherBk Data (in Simplified Chinese). China Meteorological Administration. Retrieved 26 August 2023.
- 中国气象数据网 (in Simplified Chinese). China Meteorological Administration. Retrieved 26 August 2023.
- 右玉 - 气象数据 -中国天气网 (in Chinese). Weather China. Retrieved 24 November 2022.
Bibliography
- www.xzqh.org (in Chinese)
- Hymn of Youyu County Spirit - Cursive Script
- Li Shizhen (2017), Hua Linfu; et al. (eds.), Ben Cao Gang Mu Dictionary, Vol. II: Geographical and Administrative Designations, Berkeley: University of California Press, ISBN 9780520291966.
- Xiong, Victor Cunrui (2009), Historical Dictionary of Medieval China, Historical Dictionaries of Ancient Civilizations and Historical Eras, No. 19, Lanham: Scarecrow Press, ISBN 9780810860537.
| County-level divisions of Shanxi Province | |||||||||||||||||||||||
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| Taiyuan (capital) | |||||||||||||||||||||||
| Prefecture-level cities |
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