Tanchang Chengguanzhen climate — normals and trends
Tanchang Chengguanzhen (China) has a warm-summer humid continental, dry winter climate (Dwb) under the Köppen-Geiger classification. Its mean annual temperature is 5.2 °C and it receives 958 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 (16.4 °C on average) and the coldest is January (-8.5 °C). Rainfall peaks in July.
Tanchang Chengguanzhen averages 153 frost days, 0 hot days (≥ 30 °C) and 165 rainy days per year.
Tanchang Chengguanzhen has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The number of frost days there went from about 159 to 147 per year over the period.
The hottest day of the period reached 27.6 °C (on 6 July 2022) and the coldest -29.8 °C (on 11 January 2021).
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
Tanchang ChengguanzhenGansu
- coords
- 34.04°, 104.39°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
5.2°C
Average daily high
9.8°C
Average daily low
0.9°C
Annual rainfall
958mm
Sunshine / day
8.7h
Mean relative humidity
75%
Average peak wind
9.0km/h
Seasonal range
24.9°C
Frost days (< 0 °C)
153 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
165 d/yr
Annual snowfall
100.6 cm
Average feels-like high
8.1 °C
Average feels-like low
-1.6 °C
Average peak gust
30.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
15.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.24 · 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
27.6 °C
6 July 2022
Coldest day
-29.8 °C
11 January 2021
Wettest day
142 mm
28 July 1946
Windiest day
31.2 km/h
31 May 1946
Strongest gust
94.3 km/h
23 May 1946
Hottest feels-like
31.9 °C
28 July 2010
Coldest feels-like
-34.9 °C
11 January 2021
Snowiest day
14.4 cm
21 May 2011
Sunniest day
14.0 h
31 May 1940
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 | -2.7 °C | +0.2 °C | 23 mm | +9 mm |
| Feb | -3.4 °C | -2.7 °C | 36 mm | +17 mm |
| Mar | 3.0 °C | -2.7 °C | 32 mm | -11 mm |
| Apr | 13.7 °C | +1.8 °C | 45 mm | -26 mm |
| May | 17.4 °C | +2.1 °C | 114 mm | +10 mm |
| Jun | 18.3 °C | +0.2 °C | 145 mm | +21 mm |
| Jul | 21.9 °C | +1.5 °C | 198 mm | +28 mm |
| Aug | 20.6 °C | +0.8 °C | 147 mm | -7 mm |
| Sep | 17.8 °C | +2.3 °C | 111 mm | -19 mm |
| Oct | 11.2 °C | +0.4 °C | 111 mm | +26 mm |
| Nov | 6.1 °C | +1.0 °C | 31 mm | -0 mm |
| Dec | 3.8 °C | +4.7 °C | 9 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 Tanchang Chengguanzhen?
Tanchang Chengguanzhen has a warm-summer humid continental, dry winter climate (Köppen Dwb). Over 1940-2025, the average annual temperature is 5.2 °C and it receives 958 mm of precipitation per year.
What is the hottest day ever recorded in Tanchang Chengguanzhen?
The hottest day measured in Tanchang Chengguanzhen between 1940 and 2025 was 6 July 2022, reaching 27.6 °C.
What is the coldest day in Tanchang Chengguanzhen?
The coldest day measured in Tanchang Chengguanzhen between 1940 and 2025 was 11 January 2021, at -29.8 °C.
Does it snow in Tanchang Chengguanzhen?
Yes. Tanchang Chengguanzhen gets on average 100.6 cm of snow per year and has around 153 frost days.
Has the climate of Tanchang Chengguanzhen warmed?
Yes: Tanchang Chengguanzhen warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tanchang Chengguanzhen?
The wettest day measured in Tanchang Chengguanzhen between 1940 and 2025 was 28 July 1946, with 142 mm of rain in 24 hours.
What was the windiest day in Tanchang Chengguanzhen?
The windiest day measured in Tanchang Chengguanzhen between 1940 and 2025 was 31 May 1946, with winds reaching 31.2 km/h.
What is the warmest month in Tanchang Chengguanzhen?
The warmest month in Tanchang Chengguanzhen is July (16.4 °C on average); the coldest is January (-8.5 °C).
How much does it rain in Tanchang Chengguanzhen?
Tanchang Chengguanzhen receives on average 958 mm of precipitation per year, spread over about 165 rainy days.
Is it sunny in Tanchang Chengguanzhen?
Tanchang Chengguanzhen gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
What is the biggest single-day snowfall in Tanchang Chengguanzhen?
The heaviest 24-hour snowfall measured in Tanchang Chengguanzhen between 1940 and 2025 was 21 May 2011, with 14.4 cm.
Are there tropical nights in Tanchang Chengguanzhen?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Tanchang Chengguanzhen.
What was the most extreme apparent temperature in Tanchang Chengguanzhen?
In Tanchang Chengguanzhen, between 1940 and 2025, the highest apparent temperature reached 31.9 °C on 28 July 2010, and the lowest was -34.9 °C on 11 January 2021.
Compare Tanchang Chengguanzhen with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tanchang Chengguanzhen