Chengjiao climate — normals and trends
Chengjiao (China) has a warm-summer humid continental, dry winter climate (Dwb) under the Köppen-Geiger classification. Its mean annual temperature is 8.1 °C and it receives 984 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 (19.1 °C on average) and the coldest is January (-4.9 °C). Rainfall peaks in July.
Chengjiao averages 124 frost days, 0 hot days (≥ 30 °C) and 151 rainy days per year.
Chengjiao 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 128 to 120 per year over the period.
The hottest day of the period reached 30.6 °C (on 30 July 2021) and the coldest -27.6 °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
ChengjiaoGansu
- coords
- 33.39°, 104.92°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.1°C
Average daily high
12.4°C
Average daily low
4.1°C
Annual rainfall
984mm
Sunshine / day
7.8h
Mean relative humidity
77%
Average peak wind
8.6km/h
Seasonal range
24.0°C
Frost days (< 0 °C)
124 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
151 d/yr
Annual snowfall
67.0 cm
Average feels-like high
11.0 °C
Average feels-like low
2.1 °C
Average peak gust
29.2 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
14.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.33 · 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
30.6 °C
30 July 2021
Coldest day
-27.6 °C
11 January 2021
Wettest day
174 mm
15 July 1946
Windiest day
26.6 km/h
31 May 1946
Strongest gust
87.1 km/h
12 April 1980
Hottest feels-like
33.8 °C
13 July 2021
Coldest feels-like
-32.5 °C
11 January 2021
Snowiest day
11.2 cm
15 April 2022
Sunniest day
14.0 h
29 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 | 1.6 °C | +1.7 °C | 27 mm | +13 mm |
| Feb | 0.0 °C | -2.4 °C | 42 mm | +20 mm |
| Mar | 7.6 °C | -1.1 °C | 34 mm | -9 mm |
| Apr | 16.8 °C | +2.7 °C | 31 mm | -35 mm |
| May | 20.3 °C | +2.4 °C | 88 mm | -8 mm |
| Jun | 21.5 °C | +0.6 °C | 133 mm | +13 mm |
| Jul | 24.7 °C | +1.7 °C | 124 mm | -62 mm |
| Aug | 23.5 °C | +1.1 °C | 166 mm | -5 mm |
| Sep | 19.7 °C | +2.0 °C | 155 mm | +16 mm |
| Oct | 12.9 °C | +0.1 °C | 151 mm | +69 mm |
| Nov | 8.0 °C | +0.6 °C | 27 mm | -6 mm |
| Dec | 4.7 °C | +2.9 °C | 12 mm | -1 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 Chengjiao?
Chengjiao has a warm-summer humid continental, dry winter climate (Köppen Dwb). Over 1940-2025, the average annual temperature is 8.1 °C and it receives 984 mm of precipitation per year.
What is the hottest day ever recorded in Chengjiao?
The hottest day measured in Chengjiao between 1940 and 2025 was 30 July 2021, reaching 30.6 °C.
What is the coldest day in Chengjiao?
The coldest day measured in Chengjiao between 1940 and 2025 was 11 January 2021, at -27.6 °C.
Does it snow in Chengjiao?
Yes. Chengjiao gets on average 67.0 cm of snow per year and has around 124 frost days.
Has the climate of Chengjiao warmed?
Yes: Chengjiao warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Chengjiao?
The wettest day measured in Chengjiao between 1940 and 2025 was 15 July 1946, with 174 mm of rain in 24 hours.
What was the windiest day in Chengjiao?
The windiest day measured in Chengjiao between 1940 and 2025 was 31 May 1946, with winds reaching 26.6 km/h.
What is the warmest month in Chengjiao?
The warmest month in Chengjiao is July (19.1 °C on average); the coldest is January (-4.9 °C).
How much does it rain in Chengjiao?
Chengjiao receives on average 984 mm of precipitation per year, spread over about 151 rainy days.
Is it sunny in Chengjiao?
Chengjiao gets on average 7.8 hours of sunshine per day, roughly 2,847 hours per year over 1940-2025.
What is the biggest single-day snowfall in Chengjiao?
The heaviest 24-hour snowfall measured in Chengjiao between 1940 and 2025 was 15 April 2022, with 11.2 cm.
Are there tropical nights in Chengjiao?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Chengjiao.
What was the most extreme apparent temperature in Chengjiao?
In Chengjiao, between 1940 and 2025, the highest apparent temperature reached 33.8 °C on 13 July 2021, and the lowest was -32.5 °C on 11 January 2021.
Compare Chengjiao with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Chengjiao