Aksu climate — normals and trends
Aksu (China) has a cold desert climate (BWk) under the Köppen-Geiger classification. Its mean annual temperature is 9.8 °C and it receives 115 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (23.7 °C on average) and the coldest is January (-7.7 °C). Rainfall peaks in August.
Aksu averages 140 frost days, 49 hot days (≥ 30 °C) and 29 rainy days per year.
The mean temperature of Aksu has changed by -1.5 °C between 1940 and 2025, or -0.17 °C per decade. This trend is statistically significant.
The hottest day of the period reached 42.3 °C (on 24 July 1956) and the coldest -25.9 °C (on 18 January 1994).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
AksuXinjiang
- coords
- 41.18°, 80.28°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.8°C
Average daily high
16.4°C
Average daily low
3.9°C
Annual rainfall
115mm
Sunshine / day
10.8h
Mean relative humidity
51%
Average peak wind
10.3km/h
Seasonal range
31.4°C
Frost days (< 0 °C)
140 d/yr
Hot days (≥ 30 °C)
49 d/yr
Rainy days (≥ 1 mm)
29 d/yr
Annual snowfall
11.7 cm
Average feels-like high
14.3 °C
Average feels-like low
0.7 °C
Average peak gust
22.6 km/h
Tropical nights (≥ 20 °C)
9 d/yr
Solar radiation
17.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
-1.5 °C
since 1940
-0.2 °C per decade · r² = 0.14 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
42.3 °C
24 July 1956
Coldest day
-25.9 °C
18 January 1994
Wettest day
48 mm
24 June 1974
Windiest day
42.5 km/h
12 May 1957
Strongest gust
80.3 km/h
10 April 1979
Hottest feels-like
41.4 °C
24 July 1956
Coldest feels-like
-30.7 °C
20 January 1994
Snowiest day
9.6 cm
8 February 2003
Sunniest day
14.8 h
18 June 1999
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -1.1 °C | +0.9 °C | 2 mm | +0 mm |
| Feb | 4.4 °C | +1.3 °C | 1 mm | -4 mm |
| Mar | 12.2 °C | +0.2 °C | 1 mm | -8 mm |
| Apr | 21.9 °C | +1.5 °C | 3 mm | -9 mm |
| May | 29.3 °C | +3.6 °C | 3 mm | -11 mm |
| Jun | 32.5 °C | +3.5 °C | 5 mm | -8 mm |
| Jul | 31.5 °C | +1.1 °C | 7 mm | -6 mm |
| Aug | 28.7 °C | -0.5 °C | 20 mm | +3 mm |
| Sep | 26.5 °C | +1.7 °C | 2 mm | -13 mm |
| Oct | 19.7 °C | +2.1 °C | 3 mm | -7 mm |
| Nov | 9.9 °C | +2.4 °C | 8 mm | +4 mm |
| Dec | 2.8 °C | +3.2 °C | 7 mm | +5 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Aksu?
Aksu has a cold desert climate (Köppen BWk). Over 1940-2025, the average annual temperature is 9.8 °C and it receives 115 mm of precipitation per year.
What is the hottest day ever recorded in Aksu?
The hottest day measured in Aksu between 1940 and 2025 was 24 July 1956, reaching 42.3 °C.
What is the coldest day in Aksu?
The coldest day measured in Aksu between 1940 and 2025 was 18 January 1994, at -25.9 °C.
Does it snow in Aksu?
Yes. Aksu gets on average 11.7 cm of snow per year and has around 140 frost days.
Has the climate of Aksu warmed?
Between 1940 and 2025, no statistically significant temperature trend emerges in Aksu.
What is the wettest day in Aksu?
The wettest day measured in Aksu between 1940 and 2025 was 24 June 1974, with 48 mm of rain in 24 hours.
What was the windiest day in Aksu?
The windiest day measured in Aksu between 1940 and 2025 was 12 May 1957, with winds reaching 42.5 km/h.
What is the warmest month in Aksu?
The warmest month in Aksu is July (23.7 °C on average); the coldest is January (-7.7 °C).
How much does it rain in Aksu?
Aksu receives on average 115 mm of precipitation per year, spread over about 29 rainy days.
Is it sunny in Aksu?
Aksu gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
What is the biggest single-day snowfall in Aksu?
The heaviest 24-hour snowfall measured in Aksu between 1940 and 2025 was 8 February 2003, with 9.6 cm.
Are there tropical nights in Aksu?
Yes: Aksu has on average 9 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Aksu?
In Aksu, between 1940 and 2025, the highest apparent temperature reached 41.4 °C on 24 July 1956, and the lowest was -30.7 °C on 20 January 1994.
Compare Aksu with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Aksu