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Xian Weather Forecast and Xian Climate
Xian Weather Forecast
General Information
Xi'an has a warm temperate semi-humid continental monsoon climate, exhibiting four distinct seasons and moderate precipitation. The winter of Xi'an is chilly and foggy, with light winds and little rain and snow. Spring is warm, dry, windy, and volatile. Summer is hot, rainy, often associated with thunderstorms and heavy winds, and drought is prominent in midsummer. It is cool in autumn with apparent drop in temperature. The annual temperature is about 15 C. The average temperature of the coolest month (January) is around 0 C, while that of the warmest month (July) is 26 C. The annual precipitation is 500 - 750 mm, which mainly occurs in summer and autumn. Xi'an has 1,500 hours of sunshine and 208 - 230 days free of frost per year. Northeasterly wind is the most frequent wind direction in a year.
Pressure

monthly mean atmospheric pressure

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Pressure
(hPa)
979897689728967996479600958096139686974797879807

Pressure (hPa)
9798
9768
9728
9679
9647
9600
9580
9613
9686
9747
9787
9807
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

fig.1 monthly mean pressure

Temperature

monthly mean temperature

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Temp
(oF)
31.837.246.558.667.676.679.877.567.85744.434.3
Temp
(oC)
-.12.98.114.819.824.826.625.319.913.96.91.3

Temperature (oC|oF)
-.1 oC
31.8 oF
2.9 oC
37.2 oF
8.1 oC
46.5 oF
14.8 oC
58.6 oF
19.8 oC
67.6 oF
24.8 oC
76.6 oF
26.6 oC
79.8 oF
25.3 oC
77.5 oF
19.9 oC
67.8 oF
13.9 oC
57 oF
6.9 oC
44.4 oF
1.3 oC
34.3 oF
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

fig.2 monthly mean temperature


monthly extreme mean temperature

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min Temp
(oF)
25.13038.449.157.566.571.469.660.649.837.227.5
Min Temp
(oC)
-3.8-1.13.69.514.219.221.920.915.99.92.9-2.5
Max Temp
(oF)
40.646.95769.878.988.189.787.477.567.153.943.5
Max Temp
(oC)
4.88.313.92126.131.232.130.825.319.512.26.4

monthly extreme daily temperature

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min Temp
(oF)
3.211.620.129.639.250.159.354.543.828.510.45.5
Min Temp
(oC)
-16-11.3-6.6-1.3410.115.212.56.6-1.9-12-14.7
Max Temp
(oF)
62.675.38292.4101.4107.2104.5104100.792.675.370.8
Max Temp
(oC)
1724.127.833.638.641.840.34038.233.724.121.6
Humidity

monthly mean hunidity

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hunidity
(%)
666367686862717579777469

Hunidity (%)
66
63
67
68
68
62
71
75
79
77
74
69
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

fig.3 monthly mean hunidity


monthly minimum daily hunidity

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hunidity
(%)
83369816211613910
Precipitation

monthly mean precipitation

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation
(mm)
6.99.628.64360.254.498.670.891.659.923.95.8
Days
(Precipitation<0.1mm)
3.64.46.98.48.99109.110.99.763.4
Days
(Precipitation<10mm)
0.211.52.21.932.53.12.2.50
Days
(Precipitation<25mm)
000.2.4.41.2.6.9.4.10
Days
(Precipitation<50mm)
0000.10.3.1.1000

Precipitation (mm)
6.9
9.6
28.6
43
60.2
54.4
98.6
70.8
91.6
59.9
23.9
5.8
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

fig.4 monthly mean precipitation


monthly maximum daily precipitation

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation
(mm)
11.920.88131.355.847.4110.769.992.547.132.315.3
Wind

monthly mean wind speed

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wind Speed
(m/s)
1.31.61.91.81.81.91.91.81.41.41.41.3

Wind Speed (m/s)
1.3
1.6
1.9
1.8
1.8
1.9
1.9
1.8
1.4
1.4
1.4
1.3
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

fig.5 monthly mean wind speed


monthly maximum daily wind speed and direction

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wind Speed
(m/s)
10.111.71215151515.215.21313.71211.6
Sunshine

monthly mean sunshine duration

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Duration
(hour)
100.8103.2120.8147.9171.4185.3191.9195.4127111.198.492.8

Duration (hour)
100.8
103.2
120.8
147.9
171.4
185.3
191.9
195.4
127
111.1
98.4
92.8
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

fig.5 monthly mean sunshine duration


monthly sunshine percentage

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Percentage
(%)
323433384043444734323231
Remarks:
Weather forecast is provided by China Meteorological Administration.
Climate information is based on monthly averages for 30-year period of 1971-2000.
Precipitation includes both rain and snow.
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