Dashan climate — normals and trends
Dashan (China) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 18.0 °C and it receives 1,727 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 June (21.7 °C on average) and the coldest is January (12.1 °C). Rainfall peaks in July.
Dashan averages 0 frost days, 11 hot days (≥ 30 °C) and 181 rainy days per year.
Dashan has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The hottest day of the period reached 35.8 °C (on 20 May 2019) and the coldest -0.4 °C (on 5 January 1963).
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
DashanYunnan
- coords
- 23.00°, 100.11°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
18.0°C
Average daily high
23.9°C
Average daily low
13.4°C
Annual rainfall
1,727mm
Sunshine / day
9.3h
Mean relative humidity
75%
Average peak wind
8.7km/h
Seasonal range
9.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
11 d/yr
Rainy days (≥ 1 mm)
181 d/yr
Annual snowfall
0.0 cm
Average feels-like high
24.7 °C
Average feels-like low
13.6 °C
Average peak gust
34.5 km/h
Tropical nights (≥ 20 °C)
10 d/yr
Solar radiation
16.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.83 · 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
35.8 °C
20 May 2019
Coldest day
-0.4 °C
5 January 1963
Wettest day
101 mm
8 October 2006
Windiest day
23.6 km/h
28 March 1968
Strongest gust
81.4 km/h
18 April 2009
Hottest feels-like
36.6 °C
2 June 1958
Coldest feels-like
-3.2 °C
5 January 1963
Snowiest day
3.3 cm
3 March 1986
Sunniest day
13.0 h
1 July 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 | 19.9 °C | 0.0 °C | 10 mm | -19 mm |
| Feb | 23.9 °C | +1.5 °C | 13 mm | -12 mm |
| Mar | 26.2 °C | +0.8 °C | 17 mm | -20 mm |
| Apr | 27.2 °C | -0.1 °C | 60 mm | -7 mm |
| May | 26.0 °C | -0.9 °C | 275 mm | +100 mm |
| Jun | 26.4 °C | +0.6 °C | 349 mm | +77 mm |
| Jul | 26.1 °C | +1.1 °C | 503 mm | +182 mm |
| Aug | 25.9 °C | +0.7 °C | 221 mm | -85 mm |
| Sep | 26.1 °C | +1.0 °C | 293 mm | +62 mm |
| Oct | 24.9 °C | +1.4 °C | 206 mm | +38 mm |
| Nov | 21.0 °C | -0.2 °C | 130 mm | +62 mm |
| Dec | 21.4 °C | +2.2 °C | 5 mm | -25 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 Dashan?
Dashan has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 18.0 °C and it receives 1,727 mm of precipitation per year.
What is the hottest day ever recorded in Dashan?
The hottest day measured in Dashan between 1940 and 2025 was 20 May 2019, reaching 35.8 °C.
What is the coldest day in Dashan?
The coldest day measured in Dashan between 1940 and 2025 was 5 January 1963, at -0.4 °C.
Does it snow in Dashan?
Almost never: Dashan sees virtually no snow, with about 0 frost days per year.
Has the climate of Dashan warmed?
Yes: Dashan warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dashan?
The wettest day measured in Dashan between 1940 and 2025 was 8 October 2006, with 101 mm of rain in 24 hours.
What was the windiest day in Dashan?
The windiest day measured in Dashan between 1940 and 2025 was 28 March 1968, with winds reaching 23.6 km/h.
What is the warmest month in Dashan?
The warmest month in Dashan is June (21.7 °C on average); the coldest is January (12.1 °C).
How much does it rain in Dashan?
Dashan receives on average 1,727 mm of precipitation per year, spread over about 181 rainy days.
Is it sunny in Dashan?
Dashan gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
What is the biggest single-day snowfall in Dashan?
The heaviest 24-hour snowfall measured in Dashan between 1940 and 2025 was 3 March 1986, with 3.3 cm.
Are there tropical nights in Dashan?
Yes: Dashan has on average 10 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Dashan?
In Dashan, between 1940 and 2025, the highest apparent temperature reached 36.6 °C on 2 June 1958, and the lowest was -3.2 °C on 5 January 1963.
Compare Dashan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dashan