Zouma climate — normals and trends
Zouma (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.4 °C and it receives 1,778 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 (25.5 °C on average) and the coldest is January (4.6 °C). Rainfall peaks in July.
Zouma averages 18 frost days, 41 hot days (≥ 30 °C) and 177 rainy days per year.
Zouma has warmed by +0.9 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.
The number of frost days there went from about 24 to 12 per year over the period.
The hottest day of the period reached 37.6 °C (on 3 August 2025) and the coldest -12.1 °C (on 20 December 1944).
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
ZoumaChongqing Municipality
- coords
- 30.57°, 108.44°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.4°C
Average daily high
19.2°C
Average daily low
12.1°C
Annual rainfall
1,778mm
Sunshine / day
6.5h
Mean relative humidity
80%
Average peak wind
8.4km/h
Seasonal range
20.9°C
Frost days (< 0 °C)
18 d/yr
Hot days (≥ 30 °C)
41 d/yr
Rainy days (≥ 1 mm)
177 d/yr
Annual snowfall
11.7 cm
Average feels-like high
19.9 °C
Average feels-like low
12.0 °C
Average peak gust
25.7 km/h
Tropical nights (≥ 20 °C)
72 d/yr
Solar radiation
12.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.27 · 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
37.6 °C
3 August 2025
Coldest day
-12.1 °C
20 December 1944
Wettest day
199 mm
17 July 1982
Windiest day
50.9 km/h
28 May 1946
Strongest gust
102.2 km/h
3 July 1946
Hottest feels-like
43.5 °C
24 July 1961
Coldest feels-like
-16.5 °C
20 December 1944
Snowiest day
9.9 cm
13 January 1993
Sunniest day
13.8 h
3 July 1990
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 | 9.9 °C | +2.1 °C | 56 mm | +11 mm |
| Feb | 9.4 °C | -0.5 °C | 36 mm | -20 mm |
| Mar | 14.9 °C | +0.1 °C | 150 mm | +38 mm |
| Apr | 22.4 °C | +2.5 °C | 125 mm | -40 mm |
| May | 25.8 °C | +2.4 °C | 99 mm | -107 mm |
| Jun | 27.0 °C | +0.6 °C | 219 mm | -10 mm |
| Jul | 32.9 °C | +3.3 °C | 96 mm | -172 mm |
| Aug | 31.9 °C | +2.2 °C | 251 mm | +33 mm |
| Sep | 27.4 °C | +2.1 °C | 241 mm | +51 mm |
| Oct | 22.0 °C | +2.4 °C | 246 mm | +107 mm |
| Nov | 14.8 °C | +0.3 °C | 57 mm | -39 mm |
| Dec | 11.9 °C | +2.6 °C | 64 mm | +10 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 Zouma?
Zouma has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.4 °C and it receives 1,778 mm of precipitation per year.
What is the hottest day ever recorded in Zouma?
The hottest day measured in Zouma between 1940 and 2025 was 3 August 2025, reaching 37.6 °C.
What is the coldest day in Zouma?
The coldest day measured in Zouma between 1940 and 2025 was 20 December 1944, at -12.1 °C.
Does it snow in Zouma?
Yes. Zouma gets on average 11.7 cm of snow per year and has around 18 frost days.
Has the climate of Zouma warmed?
Yes: Zouma warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Zouma?
The wettest day measured in Zouma between 1940 and 2025 was 17 July 1982, with 199 mm of rain in 24 hours.
What was the windiest day in Zouma?
The windiest day measured in Zouma between 1940 and 2025 was 28 May 1946, with winds reaching 50.9 km/h.
What is the warmest month in Zouma?
The warmest month in Zouma is July (25.5 °C on average); the coldest is January (4.6 °C).
How much does it rain in Zouma?
Zouma receives on average 1,778 mm of precipitation per year, spread over about 177 rainy days.
Is it sunny in Zouma?
Zouma gets on average 6.5 hours of sunshine per day, roughly 2,373 hours per year over 1940-2025.
What is the biggest single-day snowfall in Zouma?
The heaviest 24-hour snowfall measured in Zouma between 1940 and 2025 was 13 January 1993, with 9.9 cm.
Are there tropical nights in Zouma?
Yes: Zouma has on average 72 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Zouma?
In Zouma, between 1940 and 2025, the highest apparent temperature reached 43.5 °C on 24 July 1961, and the lowest was -16.5 °C on 20 December 1944.
Compare Zouma with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Zouma