Youyu County
右玉县 Yuyu | |
|---|---|
 Youyu in Shuozhou | |
.png/250px-Location_of_Shuozhou_Prefecture_within_Shanxi_(China).png) Shuozhou in Shanxi | |
| Coordinates: 39°59′20″N 112°28′01″E / 39.989°N 112.467°E | |
| Country | People's Republic of China |
| Province | Shanxi |
| Prefecture-level city | Shuozhou |
| Area | |
| • Total | 1,987 km2 (767 sq mi) |
| Population (2020)[1] | |
| • Total | 88,212 |
| • Density | 44/km2 (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,[2] south of present-day Youyuxian, was the seat of Yanmen Commandery during the Qin and Western Han.[3] The post moved to Yinguan southeast of present-day Shuozhou under the Eastern Han and further south to Daixian under the Kingdom of Wei.[2]
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[4][5] | |||||||||||||
| Source 2: Weather China[6] | |||||||||||||
References
Citations
- ^ Shānxī: Prefectures, Cities, Districts and Counties
- ^ a b 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.
