Aihui climate — normals and trends
Aihui (China) has a warm-summer humid continental, dry winter climate (Dwb) under the Köppen-Geiger classification. Its mean annual temperature is 0.7 °C and it receives 568 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 (21.5 °C on average) and the coldest is January (-23.3 °C). Rainfall peaks in July.
Aihui averages 197 frost days, 10 hot days (≥ 30 °C) and 83 rainy days per year.
Aihui has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The hottest day of the period reached 38.7 °C (on 25 June 2010) and the coldest -46.1 °C (on 12 January 1980).
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
AihuiHeilongjiang
- coords
- 49.98°, 127.48°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
0.7°C
Average daily high
6.3°C
Average daily low
-4.7°C
Annual rainfall
568mm
Sunshine / day
9.1h
Mean relative humidity
66%
Average peak wind
14.6km/h
Seasonal range
44.8°C
Frost days (< 0 °C)
197 d/yr
Hot days (≥ 30 °C)
10 d/yr
Rainy days (≥ 1 mm)
83 d/yr
Annual snowfall
50.3 cm
Average feels-like high
3.4 °C
Average feels-like low
-8.1 °C
Average peak gust
30.2 km/h
Tropical nights (≥ 20 °C)
4 d/yr
Solar radiation
13.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.34 · 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
38.7 °C
25 June 2010
Coldest day
-46.1 °C
12 January 1980
Wettest day
98 mm
27 June 1946
Windiest day
44.5 km/h
20 April 1998
Strongest gust
93.2 km/h
20 April 1998
Hottest feels-like
41.5 °C
24 June 2010
Coldest feels-like
-51.5 °C
12 January 1980
Snowiest day
19.7 cm
28 October 1966
Sunniest day
15.1 h
22 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 | -16.9 °C | +0.5 °C | 6 mm | +2 mm |
| Feb | -10.3 °C | +1.2 °C | 2 mm | -4 mm |
| Mar | -2.2 °C | -0.6 °C | 16 mm | +4 mm |
| Apr | 10.5 °C | +0.8 °C | 63 mm | +31 mm |
| May | 20.0 °C | +1.9 °C | 29 mm | -29 mm |
| Jun | 24.9 °C | +0.9 °C | 135 mm | +49 mm |
| Jul | 28.2 °C | +1.9 °C | 127 mm | +5 mm |
| Aug | 24.0 °C | -0.1 °C | 104 mm | -11 mm |
| Sep | 20.7 °C | +2.7 °C | 92 mm | +15 mm |
| Oct | 6.7 °C | -1.6 °C | 11 mm | -24 mm |
| Nov | -3.7 °C | +2.0 °C | 29 mm | +13 mm |
| Dec | -16.4 °C | -0.3 °C | 18 mm | +9 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 Aihui?
Aihui has a warm-summer humid continental, dry winter climate (Köppen Dwb). Over 1940-2025, the average annual temperature is 0.7 °C and it receives 568 mm of precipitation per year.
What is the hottest day ever recorded in Aihui?
The hottest day measured in Aihui between 1940 and 2025 was 25 June 2010, reaching 38.7 °C.
What is the coldest day in Aihui?
The coldest day measured in Aihui between 1940 and 2025 was 12 January 1980, at -46.1 °C.
Does it snow in Aihui?
Yes. Aihui gets on average 50.3 cm of snow per year and has around 197 frost days.
Has the climate of Aihui warmed?
Yes: Aihui warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Aihui?
The wettest day measured in Aihui between 1940 and 2025 was 27 June 1946, with 98 mm of rain in 24 hours.
What was the windiest day in Aihui?
The windiest day measured in Aihui between 1940 and 2025 was 20 April 1998, with winds reaching 44.5 km/h.
What is the warmest month in Aihui?
The warmest month in Aihui is July (21.5 °C on average); the coldest is January (-23.3 °C).
How much does it rain in Aihui?
Aihui receives on average 568 mm of precipitation per year, spread over about 83 rainy days.
Is it sunny in Aihui?
Aihui gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.
What is the biggest single-day snowfall in Aihui?
The heaviest 24-hour snowfall measured in Aihui between 1940 and 2025 was 28 October 1966, with 19.7 cm.
Are there tropical nights in Aihui?
Yes: Aihui has on average 4 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Aihui?
In Aihui, between 1940 and 2025, the highest apparent temperature reached 41.5 °C on 24 June 2010, and the lowest was -51.5 °C on 12 January 1980.
Compare Aihui with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Aihui