District in Northwest, Vietnam
Bắc Yên is a rural district of Sơn La province in the Northwest region of Vietnam. As of 2003, the district had a population of 48,877.[1] The district covers an area of 1,085 km2. The district capital lies at Bắc Yên.[1]
Climate
| Climate data for Bắc Yên
|
| Month
|
Jan
|
Feb
|
Mar
|
Apr
|
May
|
Jun
|
Jul
|
Aug
|
Sep
|
Oct
|
Nov
|
Dec
|
Year
|
| Mean daily maximum °C (°F)
|
18.9
(66.0)
|
21.2
(70.2)
|
24.7
(76.5)
|
28.6
(83.5)
|
30.0
(86.0)
|
30.0
(86.0)
|
29.6
(85.3)
|
29.3
(84.7)
|
28.2
(82.8)
|
26.0
(78.8)
|
23.2
(73.8)
|
20.1
(68.2)
|
25.8
(78.4)
|
| Daily mean °C (°F)
|
14.2
(57.6)
|
15.8
(60.4)
|
19.0
(66.2)
|
22.6
(72.7)
|
24.6
(76.3)
|
25.4
(77.7)
|
25.1
(77.2)
|
24.7
(76.5)
|
23.7
(74.7)
|
21.6
(70.9)
|
18.4
(65.1)
|
15.1
(59.2)
|
20.9
(69.6)
|
| Mean daily minimum °C (°F)
|
11.6
(52.9)
|
13.0
(55.4)
|
15.9
(60.6)
|
19.1
(66.4)
|
21.4
(70.5)
|
22.6
(72.7)
|
22.4
(72.3)
|
22.1
(71.8)
|
21.0
(69.8)
|
18.7
(65.7)
|
15.5
(59.9)
|
12.2
(54.0)
|
18.0
(64.4)
|
| Average precipitation mm (inches)
|
30.4
(1.20)
|
22.6
(0.89)
|
49.7
(1.96)
|
111.1
(4.37)
|
196.6
(7.74)
|
241.5
(9.51)
|
264.2
(10.40)
|
271.3
(10.68)
|
167.9
(6.61)
|
76.4
(3.01)
|
30.9
(1.22)
|
22.3
(0.88)
|
1,481.9
(58.34)
|
| Average rainy days
|
5.8
|
5.2
|
7.0
|
12.2
|
16.5
|
17.2
|
19.8
|
19.5
|
13.0
|
9.8
|
5.9
|
3.9
|
135.2
|
| Average relative humidity (%)
|
83.1
|
81.2
|
79.6
|
79.1
|
78.8
|
82.3
|
84.7
|
85.7
|
84.1
|
82.2
|
80.3
|
79.1
|
81.7
|
| Mean monthly sunshine hours
|
125.1
|
129.1
|
151.0
|
179.7
|
195.8
|
157.7
|
162.5
|
160.6
|
161.6
|
156.1
|
150.0
|
154.2
|
1,882.4
|
| Source: Vietnam Institute for Building Science and Technology[2]
|
References
21°15′00″N 104°25′01″E / 21.250°N 104.417°E / 21.250; 104.417
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