Haomen climate — normals and trends
Haomen (China) has a tundra climate (ET) under the Köppen-Geiger classification. Its mean annual temperature is -4.1 °C and it receives 744 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 (9.2 °C on average) and the coldest is January (-16.9 °C). Rainfall peaks in July.
Haomen averages 270 frost days, 0 hot days (≥ 30 °C) and 139 rainy days per year.
Haomen has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The number of frost days there went from about 276 to 264 per year over the period.
The hottest day of the period reached 23.1 °C (on 30 July 2010) and the coldest -41.4 °C (on 17 November 2009).
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
HaomenQinghai
- coords
- 37.38°, 101.62°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
-4.1°C
Average daily high
1.9°C
Average daily low
-10.2°C
Annual rainfall
744mm
Sunshine / day
9.7h
Mean relative humidity
70%
Average peak wind
8.2km/h
Seasonal range
26.1°C
Frost days (< 0 °C)
270 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
139 d/yr
Annual snowfall
168.4 cm
Average feels-like high
-0.7 °C
Average feels-like low
-13.7 °C
Average peak gust
26.2 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
18.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.15 · 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
23.1 °C
30 July 2010
Coldest day
-41.4 °C
17 November 2009
Wettest day
45 mm
30 July 1997
Windiest day
30.0 km/h
1 December 1980
Strongest gust
83.2 km/h
23 February 2009
Hottest feels-like
24.8 °C
23 July 2000
Coldest feels-like
-45.6 °C
17 November 2009
Snowiest day
19.2 cm
25 June 1946
Sunniest day
14.2 h
5 July 1947
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 | -8.6 °C | +1.0 °C | 8 mm | +3 mm |
| Feb | -7.8 °C | -0.2 °C | 15 mm | +4 mm |
| Mar | -6.5 °C | -2.0 °C | 30 mm | +5 mm |
| Apr | 3.8 °C | +3.3 °C | 36 mm | -4 mm |
| May | 10.7 °C | +3.2 °C | 58 mm | -19 mm |
| Jun | 12.5 °C | +0.7 °C | 133 mm | +16 mm |
| Jul | 16.7 °C | +2.4 °C | 130 mm | -16 mm |
| Aug | 14.5 °C | +0.5 °C | 171 mm | +28 mm |
| Sep | 12.6 °C | +3.0 °C | 125 mm | +7 mm |
| Oct | 4.5 °C | +1.9 °C | 64 mm | +18 mm |
| Nov | -5.7 °C | +0.3 °C | 11 mm | 0 mm |
| Dec | -7.2 °C | +2.5 °C | 10 mm | +6 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 Haomen?
Haomen has a tundra climate (Köppen ET). Over 1940-2025, the average annual temperature is -4.1 °C and it receives 744 mm of precipitation per year.
What is the hottest day ever recorded in Haomen?
The hottest day measured in Haomen between 1940 and 2025 was 30 July 2010, reaching 23.1 °C.
What is the coldest day in Haomen?
The coldest day measured in Haomen between 1940 and 2025 was 17 November 2009, at -41.4 °C.
Does it snow in Haomen?
Yes. Haomen gets on average 168.4 cm of snow per year and has around 270 frost days.
Has the climate of Haomen warmed?
Yes: Haomen warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Haomen?
The wettest day measured in Haomen between 1940 and 2025 was 30 July 1997, with 45 mm of rain in 24 hours.
What was the windiest day in Haomen?
The windiest day measured in Haomen between 1940 and 2025 was 1 December 1980, with winds reaching 30.0 km/h.
What is the warmest month in Haomen?
The warmest month in Haomen is July (9.2 °C on average); the coldest is January (-16.9 °C).
How much does it rain in Haomen?
Haomen receives on average 744 mm of precipitation per year, spread over about 139 rainy days.
Is it sunny in Haomen?
Haomen gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.
What is the biggest single-day snowfall in Haomen?
The heaviest 24-hour snowfall measured in Haomen between 1940 and 2025 was 25 June 1946, with 19.2 cm.
Are there tropical nights in Haomen?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Haomen.
What was the most extreme apparent temperature in Haomen?
In Haomen, between 1940 and 2025, the highest apparent temperature reached 24.8 °C on 23 July 2000, and the lowest was -45.6 °C on 17 November 2009.
Compare Haomen with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Haomen