Xihu climate — normals and trends
Xihu (China) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 12.7 °C and it receives 922 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 (25.4 °C on average) and the coldest is January (-1.4 °C). Rainfall peaks in July.
Xihu averages 96 frost days, 27 hot days (≥ 30 °C) and 87 rainy days per year.
Xihu has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The number of frost days there went from about 109 to 83 per year over the period.
The hottest day of the period reached 39.1 °C (on 3 July 1941) and the coldest -20.8 °C (on 27 January 1981).
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
XihuShandong
- coords
- 35.45°, 119.24°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.7°C
Average daily high
17.1°C
Average daily low
8.8°C
Annual rainfall
922mm
Sunshine / day
8.7h
Mean relative humidity
72%
Average peak wind
15.2km/h
Seasonal range
26.8°C
Frost days (< 0 °C)
96 d/yr
Hot days (≥ 30 °C)
27 d/yr
Rainy days (≥ 1 mm)
87 d/yr
Annual snowfall
15.0 cm
Average feels-like high
16.4 °C
Average feels-like low
7.3 °C
Average peak gust
33.8 km/h
Tropical nights (≥ 20 °C)
66 d/yr
Solar radiation
15.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.42 · 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
39.1 °C
3 July 1941
Coldest day
-20.8 °C
27 January 1981
Wettest day
200 mm
9 July 2024
Windiest day
54.0 km/h
2 August 1940
Strongest gust
112.3 km/h
2 August 1940
Hottest feels-like
44.5 °C
3 July 1941
Coldest feels-like
-26.4 °C
16 January 1967
Snowiest day
14.7 cm
12 February 1940
Sunniest day
14.0 h
18 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 | 6.4 °C | +3.4 °C | 2 mm | -12 mm |
| Feb | 6.7 °C | +1.5 °C | 4 mm | -16 mm |
| Mar | 14.3 °C | +3.4 °C | 62 mm | +32 mm |
| Apr | 21.6 °C | +3.9 °C | 41 mm | -9 mm |
| May | 24.2 °C | +1.2 °C | 49 mm | -19 mm |
| Jun | 29.6 °C | +3.1 °C | 121 mm | +17 mm |
| Jul | 32.3 °C | +3.6 °C | 51 mm | -204 mm |
| Aug | 31.4 °C | +2.8 °C | 183 mm | -8 mm |
| Sep | 25.9 °C | +1.0 °C | 210 mm | +109 mm |
| Oct | 18.5 °C | -0.9 °C | 143 mm | +100 mm |
| Nov | 15.0 °C | +2.9 °C | 12 mm | -18 mm |
| Dec | 7.4 °C | +2.2 °C | 18 mm | +2 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 Xihu?
Xihu has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 12.7 °C and it receives 922 mm of precipitation per year.
What is the hottest day ever recorded in Xihu?
The hottest day measured in Xihu between 1940 and 2025 was 3 July 1941, reaching 39.1 °C.
What is the coldest day in Xihu?
The coldest day measured in Xihu between 1940 and 2025 was 27 January 1981, at -20.8 °C.
Does it snow in Xihu?
Yes. Xihu gets on average 15.0 cm of snow per year and has around 96 frost days.
Has the climate of Xihu warmed?
Yes: Xihu warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Xihu?
The wettest day measured in Xihu between 1940 and 2025 was 9 July 2024, with 200 mm of rain in 24 hours.
What was the windiest day in Xihu?
The windiest day measured in Xihu between 1940 and 2025 was 2 August 1940, with winds reaching 54.0 km/h.
What is the warmest month in Xihu?
The warmest month in Xihu is July (25.4 °C on average); the coldest is January (-1.4 °C).
How much does it rain in Xihu?
Xihu receives on average 922 mm of precipitation per year, spread over about 87 rainy days.
Is it sunny in Xihu?
Xihu gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
What is the biggest single-day snowfall in Xihu?
The heaviest 24-hour snowfall measured in Xihu between 1940 and 2025 was 12 February 1940, with 14.7 cm.
Are there tropical nights in Xihu?
Yes: Xihu has on average 66 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Xihu?
In Xihu, between 1940 and 2025, the highest apparent temperature reached 44.5 °C on 3 July 1941, and the lowest was -26.4 °C on 16 January 1967.
Compare Xihu with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Xihu