Jietou climate — normals and trends
Jietou (China) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 13.3 °C and it receives 1,976 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 August (18.4 °C on average) and the coldest is January (6.5 °C). Rainfall peaks in July.
Jietou averages 25 frost days, 0 hot days (≥ 30 °C) and 210 rainy days per year.
Jietou has warmed by +2.2 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 37 to 13 per year over the period.
The hottest day of the period reached 30.7 °C (on 26 May 2012) and the coldest -8.7 °C (on 29 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
JietouYunnan
- coords
- 25.43°, 98.65°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.3°C
Average daily high
18.9°C
Average daily low
8.8°C
Annual rainfall
1,976mm
Sunshine / day
8.9h
Mean relative humidity
78%
Average peak wind
6.8km/h
Seasonal range
11.9°C
Frost days (< 0 °C)
25 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
210 d/yr
Annual snowfall
5.7 cm
Average feels-like high
18.9 °C
Average feels-like low
7.9 °C
Average peak gust
36.6 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
15.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.74 · 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
30.7 °C
26 May 2012
Coldest day
-8.7 °C
29 January 2016
Wettest day
113 mm
19 July 1975
Windiest day
17.8 km/h
4 March 1946
Strongest gust
86.4 km/h
25 March 1991
Hottest feels-like
32.8 °C
30 August 2024
Coldest feels-like
-12.6 °C
29 January 2016
Snowiest day
19.1 cm
28 December 1983
Sunniest day
13.0 h
11 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 | 15.7 °C | +1.9 °C | 30 mm | -10 mm |
| Feb | 15.5 °C | +0.7 °C | 38 mm | -29 mm |
| Mar | 17.3 °C | +0.1 °C | 146 mm | +42 mm |
| Apr | 20.4 °C | +1.1 °C | 107 mm | -21 mm |
| May | 20.7 °C | -0.5 °C | 317 mm | +144 mm |
| Jun | 23.3 °C | +1.4 °C | 390 mm | +65 mm |
| Jul | 24.2 °C | +2.5 °C | 419 mm | +37 mm |
| Aug | 22.8 °C | +0.4 °C | 312 mm | +1 mm |
| Sep | 23.9 °C | +1.9 °C | 201 mm | -12 mm |
| Oct | 21.9 °C | +1.7 °C | 153 mm | -2 mm |
| Nov | 18.5 °C | +1.1 °C | 60 mm | +9 mm |
| Dec | 16.8 °C | +1.9 °C | 0 mm | -28 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 Jietou?
Jietou has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 13.3 °C and it receives 1,976 mm of precipitation per year.
What is the hottest day ever recorded in Jietou?
The hottest day measured in Jietou between 1940 and 2025 was 26 May 2012, reaching 30.7 °C.
What is the coldest day in Jietou?
The coldest day measured in Jietou between 1940 and 2025 was 29 January 2016, at -8.7 °C.
Does it snow in Jietou?
Yes. Jietou gets on average 5.7 cm of snow per year and has around 25 frost days.
Has the climate of Jietou warmed?
Yes: Jietou warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Jietou?
The wettest day measured in Jietou between 1940 and 2025 was 19 July 1975, with 113 mm of rain in 24 hours.
What was the windiest day in Jietou?
The windiest day measured in Jietou between 1940 and 2025 was 4 March 1946, with winds reaching 17.8 km/h.
What is the warmest month in Jietou?
The warmest month in Jietou is August (18.4 °C on average); the coldest is January (6.5 °C).
How much does it rain in Jietou?
Jietou receives on average 1,976 mm of precipitation per year, spread over about 210 rainy days.
Is it sunny in Jietou?
Jietou gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
What is the biggest single-day snowfall in Jietou?
The heaviest 24-hour snowfall measured in Jietou between 1940 and 2025 was 28 December 1983, with 19.1 cm.
Are there tropical nights in Jietou?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Jietou.
What was the most extreme apparent temperature in Jietou?
In Jietou, between 1940 and 2025, the highest apparent temperature reached 32.8 °C on 30 August 2024, and the lowest was -12.6 °C on 29 January 2016.
Compare Jietou with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Jietou