Wuwei climate — normals and trends
Wuwei (China) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 8.5 °C and it receives 236 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 (22.5 °C on average) and the coldest is January (-7.3 °C). Rainfall peaks in August.
Wuwei averages 160 frost days, 33 hot days (≥ 30 °C) and 46 rainy days per year.
Wuwei has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.
The number of frost days there went from about 167 to 153 per year over the period.
The hottest day of the period reached 39.9 °C (on 11 July 1942) and the coldest -26.6 °C (on 28 December 1991).
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
WuweiGansu
- coords
- 37.93°, 102.63°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.5°C
Average daily high
15.3°C
Average daily low
2.1°C
Annual rainfall
236mm
Sunshine / day
10.2h
Mean relative humidity
45%
Average peak wind
13.9km/h
Seasonal range
29.8°C
Frost days (< 0 °C)
160 d/yr
Hot days (≥ 30 °C)
33 d/yr
Rainy days (≥ 1 mm)
46 d/yr
Annual snowfall
15.8 cm
Average feels-like high
12.2 °C
Average feels-like low
-1.2 °C
Average peak gust
29.2 km/h
Tropical nights (≥ 20 °C)
4 d/yr
Solar radiation
17.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.12 · 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
39.9 °C
11 July 1942
Coldest day
-26.6 °C
28 December 1991
Wettest day
97 mm
23 June 1946
Windiest day
54.8 km/h
2 May 2008
Strongest gust
103.3 km/h
2 May 2008
Hottest feels-like
40.3 °C
28 July 2010
Coldest feels-like
-31.6 °C
5 January 1970
Snowiest day
9.0 cm
15 March 2007
Sunniest day
14.0 h
3 July 2024
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 | 1.5 °C | +2.0 °C | 3 mm | +0 mm |
| Feb | 3.0 °C | -0.2 °C | 3 mm | -1 mm |
| Mar | 9.5 °C | -1.0 °C | 5 mm | -4 mm |
| Apr | 19.7 °C | +1.9 °C | 3 mm | -8 mm |
| May | 25.3 °C | +2.1 °C | 8 mm | -8 mm |
| Jun | 28.0 °C | +0.8 °C | 33 mm | +3 mm |
| Jul | 30.9 °C | +2.0 °C | 38 mm | -9 mm |
| Aug | 28.1 °C | +0.9 °C | 58 mm | +4 mm |
| Sep | 24.4 °C | +2.5 °C | 35 mm | -7 mm |
| Oct | 14.2 °C | -1.3 °C | 25 mm | +10 mm |
| Nov | 9.0 °C | +1.7 °C | 2 mm | -2 mm |
| Dec | 3.5 °C | +2.7 °C | 5 mm | +3 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 Wuwei?
Wuwei has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 8.5 °C and it receives 236 mm of precipitation per year.
What is the hottest day ever recorded in Wuwei?
The hottest day measured in Wuwei between 1940 and 2025 was 11 July 1942, reaching 39.9 °C.
What is the coldest day in Wuwei?
The coldest day measured in Wuwei between 1940 and 2025 was 28 December 1991, at -26.6 °C.
Does it snow in Wuwei?
Yes. Wuwei gets on average 15.8 cm of snow per year and has around 160 frost days.
Has the climate of Wuwei warmed?
Yes: Wuwei warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Wuwei?
The wettest day measured in Wuwei between 1940 and 2025 was 23 June 1946, with 97 mm of rain in 24 hours.
What was the windiest day in Wuwei?
The windiest day measured in Wuwei between 1940 and 2025 was 2 May 2008, with winds reaching 54.8 km/h.
What is the warmest month in Wuwei?
The warmest month in Wuwei is July (22.5 °C on average); the coldest is January (-7.3 °C).
How much does it rain in Wuwei?
Wuwei receives on average 236 mm of precipitation per year, spread over about 46 rainy days.
Is it sunny in Wuwei?
Wuwei gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
What is the biggest single-day snowfall in Wuwei?
The heaviest 24-hour snowfall measured in Wuwei between 1940 and 2025 was 15 March 2007, with 9.0 cm.
Are there tropical nights in Wuwei?
Yes: Wuwei has on average 4 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Wuwei?
In Wuwei, between 1940 and 2025, the highest apparent temperature reached 40.3 °C on 28 July 2010, and the lowest was -31.6 °C on 5 January 1970.
Compare Wuwei with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Wuwei