Tongren climate — normals and trends
Tongren (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.3 °C and it receives 1,711 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 (26.9 °C on average) and the coldest is January (4.6 °C). Rainfall peaks in June.
Tongren averages 17 frost days, 62 hot days (≥ 30 °C) and 188 rainy days per year.
Tongren has warmed by +1.4 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The number of frost days there went from about 26 to 8 per year over the period.
The hottest day of the period reached 39.9 °C (on 28 July 2017) and the coldest -16.9 °C (on 11 January 1955).
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
TongrenGuizhou
- coords
- 27.72°, 109.19°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.3°C
Average daily high
19.9°C
Average daily low
13.2°C
Annual rainfall
1,711mm
Sunshine / day
5.8h
Mean relative humidity
79%
Average peak wind
12.2km/h
Seasonal range
22.3°C
Frost days (< 0 °C)
17 d/yr
Hot days (≥ 30 °C)
62 d/yr
Rainy days (≥ 1 mm)
188 d/yr
Annual snowfall
24.9 cm
Average feels-like high
20.4 °C
Average feels-like low
13.1 °C
Average peak gust
28.9 km/h
Tropical nights (≥ 20 °C)
102 d/yr
Solar radiation
11.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.43 · 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
39.9 °C
28 July 2017
Coldest day
-16.9 °C
11 January 1955
Wettest day
163 mm
23 June 1945
Windiest day
41.0 km/h
2 June 1946
Strongest gust
93.2 km/h
14 June 1946
Hottest feels-like
44.4 °C
28 July 2017
Coldest feels-like
-20.9 °C
11 January 1955
Snowiest day
13.9 cm
22 January 1998
Sunniest day
13.5 h
28 June 1951
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 | 11.8 °C | +4.3 °C | 48 mm | -30 mm |
| Feb | 8.9 °C | -0.1 °C | 81 mm | -17 mm |
| Mar | 16.2 °C | +2.1 °C | 109 mm | -45 mm |
| Apr | 24.8 °C | +4.6 °C | 145 mm | -65 mm |
| May | 26.3 °C | +1.8 °C | 244 mm | +4 mm |
| Jun | 28.5 °C | +0.7 °C | 298 mm | +52 mm |
| Jul | 32.9 °C | +2.1 °C | 155 mm | -22 mm |
| Aug | 33.2 °C | +2.4 °C | 81 mm | -62 mm |
| Sep | 29.2 °C | +2.1 °C | 107 mm | +5 mm |
| Oct | 23.4 °C | +2.3 °C | 54 mm | -64 mm |
| Nov | 17.4 °C | +1.8 °C | 117 mm | +34 mm |
| Dec | 13.5 °C | +3.5 °C | 49 mm | -13 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 Tongren?
Tongren has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.3 °C and it receives 1,711 mm of precipitation per year.
What is the hottest day ever recorded in Tongren?
The hottest day measured in Tongren between 1940 and 2025 was 28 July 2017, reaching 39.9 °C.
What is the coldest day in Tongren?
The coldest day measured in Tongren between 1940 and 2025 was 11 January 1955, at -16.9 °C.
Does it snow in Tongren?
Yes. Tongren gets on average 24.9 cm of snow per year and has around 17 frost days.
Has the climate of Tongren warmed?
Yes: Tongren warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tongren?
The wettest day measured in Tongren between 1940 and 2025 was 23 June 1945, with 163 mm of rain in 24 hours.
What was the windiest day in Tongren?
The windiest day measured in Tongren between 1940 and 2025 was 2 June 1946, with winds reaching 41.0 km/h.
What is the warmest month in Tongren?
The warmest month in Tongren is July (26.9 °C on average); the coldest is January (4.6 °C).
How much does it rain in Tongren?
Tongren receives on average 1,711 mm of precipitation per year, spread over about 188 rainy days.
Is it sunny in Tongren?
Tongren gets on average 5.8 hours of sunshine per day, roughly 2,117 hours per year over 1940-2025.
What is the biggest single-day snowfall in Tongren?
The heaviest 24-hour snowfall measured in Tongren between 1940 and 2025 was 22 January 1998, with 13.9 cm.
Are there tropical nights in Tongren?
Yes: Tongren has on average 102 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Tongren?
In Tongren, between 1940 and 2025, the highest apparent temperature reached 44.4 °C on 28 July 2017, and the lowest was -20.9 °C on 11 January 1955.
Compare Tongren with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tongren