Datong climate — normals and trends
Datong (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 14.3 °C and it receives 1,674 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 (24.0 °C on average) and the coldest is January (3.7 °C). Rainfall peaks in June.
Datong averages 20 frost days, 20 hot days (≥ 30 °C) and 215 rainy days per year.
Datong has warmed by +1.0 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The number of frost days there went from about 27 to 13 per year over the period.
The hottest day of the period reached 38.7 °C (on 23 July 1961) and the coldest -13.4 °C (on 10 February 1977).
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
DatongChongqing Municipality
- coords
- 28.60°, 106.67°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.3°C
Average daily high
17.6°C
Average daily low
11.5°C
Annual rainfall
1,674mm
Sunshine / day
5.0h
Mean relative humidity
83%
Average peak wind
9.8km/h
Seasonal range
20.3°C
Frost days (< 0 °C)
20 d/yr
Hot days (≥ 30 °C)
20 d/yr
Rainy days (≥ 1 mm)
215 d/yr
Annual snowfall
31.0 cm
Average feels-like high
17.9 °C
Average feels-like low
11.2 °C
Average peak gust
29.2 km/h
Tropical nights (≥ 20 °C)
52 d/yr
Solar radiation
10.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.28 · 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
38.7 °C
23 July 1961
Coldest day
-13.4 °C
10 February 1977
Wettest day
146 mm
14 June 1949
Windiest day
47.2 km/h
24 May 1946
Strongest gust
109.8 km/h
4 July 1946
Hottest feels-like
41.7 °C
24 July 1961
Coldest feels-like
-17.5 °C
10 February 1977
Snowiest day
14.2 cm
11 January 1999
Sunniest day
13.8 h
27 June 2023
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 | 8.6 °C | +2.4 °C | 69 mm | +2 mm |
| Feb | 7.3 °C | -1.0 °C | 79 mm | +14 mm |
| Mar | 13.5 °C | 0.0 °C | 112 mm | -1 mm |
| Apr | 20.8 °C | +2.3 °C | 119 mm | -42 mm |
| May | 23.0 °C | +1.1 °C | 217 mm | -1 mm |
| Jun | 25.8 °C | +1.3 °C | 196 mm | -33 mm |
| Jul | 29.8 °C | +2.0 °C | 234 mm | +54 mm |
| Aug | 29.7 °C | +1.8 °C | 102 mm | -54 mm |
| Sep | 26.3 °C | +2.6 °C | 100 mm | -51 mm |
| Oct | 20.5 °C | +2.7 °C | 190 mm | +32 mm |
| Nov | 13.3 °C | +0.2 °C | 113 mm | +9 mm |
| Dec | 10.0 °C | +2.0 °C | 60 mm | -11 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 Datong?
Datong has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 14.3 °C and it receives 1,674 mm of precipitation per year.
What is the hottest day ever recorded in Datong?
The hottest day measured in Datong between 1940 and 2025 was 23 July 1961, reaching 38.7 °C.
What is the coldest day in Datong?
The coldest day measured in Datong between 1940 and 2025 was 10 February 1977, at -13.4 °C.
Does it snow in Datong?
Yes. Datong gets on average 31.0 cm of snow per year and has around 20 frost days.
Has the climate of Datong warmed?
Yes: Datong warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Datong?
The wettest day measured in Datong between 1940 and 2025 was 14 June 1949, with 146 mm of rain in 24 hours.
What was the windiest day in Datong?
The windiest day measured in Datong between 1940 and 2025 was 24 May 1946, with winds reaching 47.2 km/h.
What is the warmest month in Datong?
The warmest month in Datong is July (24.0 °C on average); the coldest is January (3.7 °C).
How much does it rain in Datong?
Datong receives on average 1,674 mm of precipitation per year, spread over about 215 rainy days.
Is it sunny in Datong?
Datong gets on average 5.0 hours of sunshine per day, roughly 1,825 hours per year over 1940-2025.
What is the biggest single-day snowfall in Datong?
The heaviest 24-hour snowfall measured in Datong between 1940 and 2025 was 11 January 1999, with 14.2 cm.
Are there tropical nights in Datong?
Yes: Datong has on average 52 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Datong?
In Datong, between 1940 and 2025, the highest apparent temperature reached 41.7 °C on 24 July 1961, and the lowest was -17.5 °C on 10 February 1977.
Compare Datong with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Datong