Yihe climate — normals and trends
Yihe (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.7 °C and it receives 1,653 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 (26.9 °C on average) and the coldest is January (5.8 °C). Rainfall peaks in July.
Yihe averages 10 frost days, 54 hot days (≥ 30 °C) and 166 rainy days per year.
Yihe has warmed by +1.0 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The number of frost days there went from about 16 to 4 per year over the period.
The hottest day of the period reached 40.2 °C (on 4 August 2025) and the coldest -13.2 °C (on 19 December 1965).
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
YiheChongqing Municipality
- coords
- 31.16°, 108.08°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.7°C
Average daily high
20.2°C
Average daily low
13.6°C
Annual rainfall
1,653mm
Sunshine / day
6.4h
Mean relative humidity
78%
Average peak wind
7.9km/h
Seasonal range
21.1°C
Frost days (< 0 °C)
10 d/yr
Hot days (≥ 30 °C)
54 d/yr
Rainy days (≥ 1 mm)
166 d/yr
Annual snowfall
7.1 cm
Average feels-like high
21.3 °C
Average feels-like low
14.0 °C
Average peak gust
23.0 km/h
Tropical nights (≥ 20 °C)
99 d/yr
Solar radiation
12.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.30 · 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
40.2 °C
4 August 2025
Coldest day
-13.2 °C
19 December 1965
Wettest day
149 mm
11 July 1951
Windiest day
30.9 km/h
28 May 1946
Strongest gust
78.8 km/h
23 June 1946
Hottest feels-like
45.8 °C
23 August 1957
Coldest feels-like
-17.3 °C
19 December 1965
Snowiest day
17.0 cm
22 February 1989
Sunniest day
13.9 h
29 June 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 | 10.8 °C | +1.9 °C | 51 mm | +6 mm |
| Feb | 10.9 °C | 0.0 °C | 27 mm | -28 mm |
| Mar | 16.1 °C | +0.3 °C | 107 mm | +3 mm |
| Apr | 24.2 °C | +3.2 °C | 73 mm | -66 mm |
| May | 27.8 °C | +3.1 °C | 81 mm | -105 mm |
| Jun | 29.1 °C | +1.4 °C | 181 mm | -5 mm |
| Jul | 34.7 °C | +4.2 °C | 85 mm | -163 mm |
| Aug | 33.8 °C | +2.9 °C | 146 mm | -35 mm |
| Sep | 27.7 °C | +1.6 °C | 313 mm | +103 mm |
| Oct | 22.2 °C | +1.7 °C | 282 mm | +131 mm |
| Nov | 16.0 °C | +0.7 °C | 63 mm | -33 mm |
| Dec | 12.5 °C | +2.3 °C | 51 mm | -3 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 Yihe?
Yihe has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.7 °C and it receives 1,653 mm of precipitation per year.
What is the hottest day ever recorded in Yihe?
The hottest day measured in Yihe between 1940 and 2025 was 4 August 2025, reaching 40.2 °C.
What is the coldest day in Yihe?
The coldest day measured in Yihe between 1940 and 2025 was 19 December 1965, at -13.2 °C.
Does it snow in Yihe?
Yes. Yihe gets on average 7.1 cm of snow per year and has around 10 frost days.
Has the climate of Yihe warmed?
Yes: Yihe warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Yihe?
The wettest day measured in Yihe between 1940 and 2025 was 11 July 1951, with 149 mm of rain in 24 hours.
What was the windiest day in Yihe?
The windiest day measured in Yihe between 1940 and 2025 was 28 May 1946, with winds reaching 30.9 km/h.
What is the warmest month in Yihe?
The warmest month in Yihe is August (26.9 °C on average); the coldest is January (5.8 °C).
How much does it rain in Yihe?
Yihe receives on average 1,653 mm of precipitation per year, spread over about 166 rainy days.
Is it sunny in Yihe?
Yihe gets on average 6.4 hours of sunshine per day, roughly 2,336 hours per year over 1940-2025.
What is the biggest single-day snowfall in Yihe?
The heaviest 24-hour snowfall measured in Yihe between 1940 and 2025 was 22 February 1989, with 17.0 cm.
Are there tropical nights in Yihe?
Yes: Yihe has on average 99 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Yihe?
In Yihe, between 1940 and 2025, the highest apparent temperature reached 45.8 °C on 23 August 1957, and the lowest was -17.3 °C on 19 December 1965.
Compare Yihe with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Yihe