Jianshui climate — normals and trends
Jianshui (China) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 17.3 °C and it receives 1,909 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 (21.4 °C on average) and the coldest is January (11.0 °C). Rainfall peaks in July.
Jianshui averages 0 frost days, 9 hot days (≥ 30 °C) and 206 rainy days per year.
Jianshui has warmed by +2.5 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The hottest day of the period reached 35.3 °C (on 20 May 2019) and the coldest -2.1 °C (on 25 December 1999).
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
JianshuiYunnan
- coords
- 24.28°, 101.22°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.3°C
Average daily high
22.8°C
Average daily low
12.9°C
Annual rainfall
1,909mm
Sunshine / day
9.0h
Mean relative humidity
74%
Average peak wind
8.4km/h
Seasonal range
10.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
9 d/yr
Rainy days (≥ 1 mm)
206 d/yr
Annual snowfall
0.8 cm
Average feels-like high
23.3 °C
Average feels-like low
12.9 °C
Average peak gust
36.5 km/h
Tropical nights (≥ 20 °C)
8 d/yr
Solar radiation
16.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.78 · 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
35.3 °C
20 May 2019
Coldest day
-2.1 °C
25 December 1999
Wettest day
117 mm
1 August 1983
Windiest day
22.0 km/h
4 April 1984
Strongest gust
82.8 km/h
4 April 1984
Hottest feels-like
36.3 °C
18 July 2009
Coldest feels-like
-5.2 °C
25 December 1999
Snowiest day
22.7 cm
28 December 1983
Sunniest day
13.1 h
14 June 2013
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 | 17.2 °C | -0.5 °C | 46 mm | -7 mm |
| Feb | 21.4 °C | +1.2 °C | 55 mm | +3 mm |
| Mar | 23.5 °C | 0.0 °C | 38 mm | -31 mm |
| Apr | 26.7 °C | +1.0 °C | 68 mm | -31 mm |
| May | 25.9 °C | -0.2 °C | 228 mm | +49 mm |
| Jun | 26.5 °C | +0.9 °C | 393 mm | +90 mm |
| Jul | 26.9 °C | +1.7 °C | 429 mm | +95 mm |
| Aug | 26.2 °C | +0.7 °C | 310 mm | +5 mm |
| Sep | 25.6 °C | +0.9 °C | 286 mm | +66 mm |
| Oct | 23.8 °C | +1.4 °C | 200 mm | +36 mm |
| Nov | 19.5 °C | -0.3 °C | 184 mm | +101 mm |
| Dec | 19.7 °C | +2.3 °C | 12 mm | -36 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 Jianshui?
Jianshui has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 17.3 °C and it receives 1,909 mm of precipitation per year.
What is the hottest day ever recorded in Jianshui?
The hottest day measured in Jianshui between 1940 and 2025 was 20 May 2019, reaching 35.3 °C.
What is the coldest day in Jianshui?
The coldest day measured in Jianshui between 1940 and 2025 was 25 December 1999, at -2.1 °C.
Does it snow in Jianshui?
Almost never: Jianshui sees virtually no snow, with about 0 frost days per year.
Has the climate of Jianshui warmed?
Yes: Jianshui warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Jianshui?
The wettest day measured in Jianshui between 1940 and 2025 was 1 August 1983, with 117 mm of rain in 24 hours.
What was the windiest day in Jianshui?
The windiest day measured in Jianshui between 1940 and 2025 was 4 April 1984, with winds reaching 22.0 km/h.
What is the warmest month in Jianshui?
The warmest month in Jianshui is June (21.4 °C on average); the coldest is January (11.0 °C).
How much does it rain in Jianshui?
Jianshui receives on average 1,909 mm of precipitation per year, spread over about 206 rainy days.
Is it sunny in Jianshui?
Jianshui gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.
What is the biggest single-day snowfall in Jianshui?
The heaviest 24-hour snowfall measured in Jianshui between 1940 and 2025 was 28 December 1983, with 22.7 cm.
Are there tropical nights in Jianshui?
Yes: Jianshui has on average 8 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Jianshui?
In Jianshui, between 1940 and 2025, the highest apparent temperature reached 36.3 °C on 18 July 2009, and the lowest was -5.2 °C on 25 December 1999.
Compare Jianshui with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Jianshui