Beijing Climate & Terrain

Beijing has a rather dry, monsoon-influenced humid continental climate (Koppen climate classification Dwa), characterised by hot, humid summers due to the East Asian monsoon, and generally cold, windy, dry winters that reflect the influence of the vast Siberian anticyclone.[41] Spring can bear witness to sandstorms blowing in from the Mongolian steppe, accompanied by rapidly warming, but generally dry, conditions. Autumn, like spring, sees little rain, but is crisp and short. The monthly daily average temperature in January is -3.7 °C (25.3 °F), while in July it is 26.2 °C (79.2 °F). Precipitation averages around 570 mm (22.4 in) annually, with the great majority of it falling in the summer months. Extremes have ranged from -27.4 to 42.6 °C (-17 to 109 °F).

Climate data for Beijing (1971-2000)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average high °C (°F) 1.8
(35.2)
5.0
(41.0)
11.6
(52.9)
20.3
(68.5)
26.0
(78.8)
30.2
(86.4)
30.9
(87.6)
29.7
(85.5)
25.8
(78.4)
19.1
(66.4)
10.1
(50.2)
3.7
(38.7)
17.9
(64.2)
Average low °C (°F) -8.4
(16.9)
-5.6
(21.9)
0.4
(32.7)
7.9
(46.2)
13.6
(56.5)
18.8
(65.8)
22.0
(71.6)
20.8
(69.4)
14.8
(58.6)
7.9
(46.2)
0.0
(32.0)
-5.8
(21.6)
7.2
(45.0)
Precipitation mm (inches) 2.7
(0.106)
4.9
(0.193)
8.3
(0.327)
21.2
(0.835)
34.2
(1.346)
78.1
(3.075)
185.2
(7.291)
159.7
(6.287)
45.5
(1.791)
21.8
(0.858)
7.4
(0.291)
2.8
(0.11)
571.8
(22.512)
%humidity 44 44 46 46 53 61 75 77 68 61 57 49 56.8
Avg. precipitation days (>= 0.1 mm) 1.8 2.3 3.3 4.3 5.8 9.7 13.6 12.0 7.6 5.0 3.5 1.7 70.6
Mean monthly sunshine hours 194.1 194.7 231.8 251.9 283.4 261.4 212.4 220.9 232.1 222.1 185.3 180.7 2,670.8
Source: China Meteorological Administration