Xi'an climate: monthly averages: annual mean temperature 14.5 C; warmest month Jul (27.5 C); coldest month Jan (-0.0 C).
Annual mean temperature: 14.5 C
Warmest month: Jul (27.5 C)
Coldest month: Jan (-0.0 C)
Wettest month: Sep (4.16 mm/day)
All-time record high: 42.7 C
All-time record low: -15.2 C
Xi’an’s climate averages **14.5°C annually**, with July as the warmest month (27.5°C) and January the coldest (–0.0°C). The city receives about **694 mm of rain yearly**, peaking in September (4.16 mm/day). Extreme temperatures range from –15.2°C to 42.7°C.
Annual mean temperature 14.5 C
Warmest month Jul (27.5 C)
Coldest month Jan (-0.0 C)
Wettest month Sep (4.16 mm/day)
All-time record high 42.7 C
All-time record low -15.2 C
Annual precipitation 694 mm / year
Coordinates 34.25833, 108.92861
Population 12,952,907
Average monthly temperature and rainfall in Xi'an
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
-0.0
0.28
19.2
-15.2
Feb
3.6
0.46
23.6
-10.7
Mar
9.7
0.73
31.9
-6.6
Apr
16.1
1.33
36.5
-2.1
May
21.2
2.23
37.7
5.1
Jun
25.8
2.79
42.1
11.5
Jul
27.5
4.00
42.7
15.2
Aug
26.1
3.68
40.6
12.5
Sep
20.5
4.16
39.4
6.8
Oct
14.4
1.92
33.7
1.2
Nov
7.3
0.89
25.2
-8.6
Dec
1.1
0.19
18.4
-13.4
What the Xi'an climate table shows
Values are multi-decadal climatological averages for the 34.25833, 108.92861 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
**What’s Xi’an’s wettest month?**?
September, with around 4.16 mm of rain per day on average.
**How much rain does Xi’an get annually?**?
Approximately 694 mm, or about 1.90 mm daily over the year.