Youyu County
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.
Youyu County
右玉县 Yuyu | |
|---|---|
 Youyu in Shuozhou | |
.png.webp) Shuozhou in Shanxi | |
| Coordinates: 39°59′20″N 112°28′01″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 | ||||||||
| |||||||||
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 (1981−2010 normals) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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) |
| Average high °C (°F) | −4.7 (23.5) |
−0.3 (31.5) |
6.2 (43.2) |
14.9 (58.8) |
21.5 (70.7) |
25.6 (78.1) |
26.9 (80.4) |
24.8 (76.6) |
20.4 (68.7) |
13.5 (56.3) |
4.4 (39.9) |
−2.9 (26.8) |
12.5 (54.5) |
| Daily mean °C (°F) | −14.3 (6.3) |
−9.6 (14.7) |
−2.1 (28.2) |
6.4 (43.5) |
13.5 (56.3) |
18.1 (64.6) |
19.9 (67.8) |
17.7 (63.9) |
12.3 (54.1) |
4.9 (40.8) |
−4.3 (24.3) |
−11.7 (10.9) |
4.2 (39.6) |
| Average low °C (°F) | −22.2 (−8.0) |
−17.6 (0.3) |
−10.0 (14.0) |
−2.5 (27.5) |
4.3 (39.7) |
9.8 (49.6) |
12.9 (55.2) |
11.2 (52.2) |
5.0 (41.0) |
−2.1 (28.2) |
−11.3 (11.7) |
−18.9 (−2.0) |
−3.5 (25.8) |
| 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) | 2.2 (0.09) |
3.1 (0.12) |
10.2 (0.40) |
20.6 (0.81) |
39.2 (1.54) |
54.6 (2.15) |
92.8 (3.65) |
101.5 (4.00) |
53.5 (2.11) |
21.1 (0.83) |
6.0 (0.24) |
2.1 (0.08) |
406.9 (16.02) |
| Average precipitation days (≥ 0.1 mm) | 2.3 | 3.4 | 5.4 | 4.7 | 6.4 | 9.8 | 14.1 | 13.0 | 8.7 | 5.6 | 3.6 | 2.2 | 79.2 |
| Average relative humidity (%) | 63 | 56 | 50 | 43 | 44 | 55 | 68 | 73 | 68 | 63 | 60 | 62 | 59 |
| Source 1: China Meteorological Data Service Center[4] | |||||||||||||
| Source 2: Weather China (precipitation days 1971–2000)[5] | |||||||||||||
References
Citations
- Shānxī: Prefectures, Cities, Districts and Counties
- Xiong (2009), s.v. "Yanmen".
- Li (2017), s.v. "Yanmen".
- 中国地面气候标准值月值(1981-2010) (in Simplified Chinese). China Meteorological Data Service Center. Retrieved 24 November 2022.
- 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.