Dianga climate — normals and trends
Dianga (China) has a dry-winter subarctic climate (Dwc) under the Köppen-Geiger classification. Its mean annual temperature is 1.0 °C and it receives 896 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 (12.2 °C on average) and the coldest is January (-12.2 °C). Rainfall peaks in July.
Dianga averages 209 frost days, 0 hot days (≥ 30 °C) and 161 rainy days per year.
Dianga has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 215 to 203 per year over the period.
The hottest day of the period reached 27.4 °C (on 13 August 2022) and the coldest -35.7 °C (on 24 January 2016).
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
DiangaGansu
- coords
- 34.06°, 103.21°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
1.0°C
Average daily high
7.0°C
Average daily low
-4.5°C
Annual rainfall
896mm
Sunshine / day
9.1h
Mean relative humidity
73%
Average peak wind
9.9km/h
Seasonal range
24.4°C
Frost days (< 0 °C)
209 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
161 d/yr
Annual snowfall
155.3 cm
Average feels-like high
4.6 °C
Average feels-like low
-7.7 °C
Average peak gust
32.5 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
17.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.26 · 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
27.4 °C
13 August 2022
Coldest day
-35.7 °C
24 January 2016
Wettest day
65 mm
29 July 1946
Windiest day
30.5 km/h
1 December 1980
Strongest gust
91.8 km/h
17 July 1946
Hottest feels-like
27.2 °C
17 August 2016
Coldest feels-like
-40.6 °C
24 January 2016
Snowiest day
15.8 cm
3 October 2017
Sunniest day
14.0 h
28 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 | 1.0 °C | +5.6 °C | 14 mm | +2 mm |
| Feb | 2.1 °C | +4.2 °C | 24 mm | +8 mm |
| Mar | 4.8 °C | +1.9 °C | 44 mm | +9 mm |
| Apr | 11.0 °C | +2.5 °C | 58 mm | -7 mm |
| May | 14.9 °C | +2.9 °C | 91 mm | -23 mm |
| Jun | 14.4 °C | 0.0 °C | 155 mm | +28 mm |
| Jul | 19.3 °C | +2.3 °C | 165 mm | +18 mm |
| Aug | 18.2 °C | +1.3 °C | 182 mm | +50 mm |
| Sep | 16.4 °C | +3.3 °C | 102 mm | -30 mm |
| Oct | 11.3 °C | +3.1 °C | 142 mm | +56 mm |
| Nov | 4.8 °C | +3.3 °C | 33 mm | +9 mm |
| Dec | 4.4 °C | +8.0 °C | 4 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 Dianga?
Dianga has a dry-winter subarctic climate (Köppen Dwc). Over 1940-2025, the average annual temperature is 1.0 °C and it receives 896 mm of precipitation per year.
What is the hottest day ever recorded in Dianga?
The hottest day measured in Dianga between 1940 and 2025 was 13 August 2022, reaching 27.4 °C.
What is the coldest day in Dianga?
The coldest day measured in Dianga between 1940 and 2025 was 24 January 2016, at -35.7 °C.
Does it snow in Dianga?
Yes. Dianga gets on average 155.3 cm of snow per year and has around 209 frost days.
Has the climate of Dianga warmed?
Yes: Dianga warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dianga?
The wettest day measured in Dianga between 1940 and 2025 was 29 July 1946, with 65 mm of rain in 24 hours.
What was the windiest day in Dianga?
The windiest day measured in Dianga between 1940 and 2025 was 1 December 1980, with winds reaching 30.5 km/h.
What is the warmest month in Dianga?
The warmest month in Dianga is July (12.2 °C on average); the coldest is January (-12.2 °C).
How much does it rain in Dianga?
Dianga receives on average 896 mm of precipitation per year, spread over about 161 rainy days.
Is it sunny in Dianga?
Dianga gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.
What is the biggest single-day snowfall in Dianga?
The heaviest 24-hour snowfall measured in Dianga between 1940 and 2025 was 3 October 2017, with 15.8 cm.
Are there tropical nights in Dianga?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Dianga.
What was the most extreme apparent temperature in Dianga?
In Dianga, between 1940 and 2025, the highest apparent temperature reached 27.2 °C on 17 August 2016, and the lowest was -40.6 °C on 24 January 2016.
Compare Dianga with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dianga