Nianzishan climate — normals and trends
Nianzishan (China) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 3.4 °C and it receives 532 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 (22.4 °C on average) and the coldest is January (-18.6 °C). Rainfall peaks in July.
Nianzishan averages 187 frost days, 17 hot days (≥ 30 °C) and 71 rainy days per year.
Nianzishan has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The number of frost days there went from about 191 to 183 per year over the period.
The hottest day of the period reached 40.9 °C (on 1 June 2018) and the coldest -38.8 °C (on 10 January 2001).
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
NianzishanHeilongjiang
- coords
- 47.51°, 122.89°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
3.4°C
Average daily high
9.2°C
Average daily low
-1.9°C
Annual rainfall
532mm
Sunshine / day
9.5h
Mean relative humidity
59%
Average peak wind
17.5km/h
Seasonal range
41.0°C
Frost days (< 0 °C)
187 d/yr
Hot days (≥ 30 °C)
17 d/yr
Rainy days (≥ 1 mm)
71 d/yr
Annual snowfall
30.3 cm
Average feels-like high
5.9 °C
Average feels-like low
-5.6 °C
Average peak gust
33.4 km/h
Tropical nights (≥ 20 °C)
7 d/yr
Solar radiation
14.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.33 · 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
40.9 °C
1 June 2018
Coldest day
-38.8 °C
10 January 2001
Wettest day
80 mm
2 August 2025
Windiest day
53.2 km/h
5 April 1984
Strongest gust
90.7 km/h
20 May 2019
Hottest feels-like
42.3 °C
22 July 1968
Coldest feels-like
-44.7 °C
10 January 2001
Snowiest day
25.6 cm
15 April 1966
Sunniest day
15.1 h
17 June 1958
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 | -11.5 °C | +1.3 °C | 7 mm | +5 mm |
| Feb | -8.7 °C | -1.0 °C | 3 mm | -1 mm |
| Mar | 3.0 °C | +1.2 °C | 18 mm | +8 mm |
| Apr | 13.0 °C | +0.6 °C | 56 mm | +29 mm |
| May | 21.8 °C | +1.4 °C | 18 mm | -24 mm |
| Jun | 27.1 °C | +1.5 °C | 94 mm | +5 mm |
| Jul | 29.7 °C | +2.5 °C | 163 mm | +10 mm |
| Aug | 25.8 °C | +0.3 °C | 170 mm | +59 mm |
| Sep | 23.0 °C | +3.3 °C | 56 mm | -4 mm |
| Oct | 9.4 °C | -1.3 °C | 8 mm | -17 mm |
| Nov | 1.4 °C | +3.2 °C | 3 mm | -4 mm |
| Dec | -9.6 °C | +1.3 °C | 5 mm | +1 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 Nianzishan?
Nianzishan has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 3.4 °C and it receives 532 mm of precipitation per year.
What is the hottest day ever recorded in Nianzishan?
The hottest day measured in Nianzishan between 1940 and 2025 was 1 June 2018, reaching 40.9 °C.
What is the coldest day in Nianzishan?
The coldest day measured in Nianzishan between 1940 and 2025 was 10 January 2001, at -38.8 °C.
Does it snow in Nianzishan?
Yes. Nianzishan gets on average 30.3 cm of snow per year and has around 187 frost days.
Has the climate of Nianzishan warmed?
Yes: Nianzishan warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nianzishan?
The wettest day measured in Nianzishan between 1940 and 2025 was 2 August 2025, with 80 mm of rain in 24 hours.
What was the windiest day in Nianzishan?
The windiest day measured in Nianzishan between 1940 and 2025 was 5 April 1984, with winds reaching 53.2 km/h.
What is the warmest month in Nianzishan?
The warmest month in Nianzishan is July (22.4 °C on average); the coldest is January (-18.6 °C).
How much does it rain in Nianzishan?
Nianzishan receives on average 532 mm of precipitation per year, spread over about 71 rainy days.
Is it sunny in Nianzishan?
Nianzishan gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.
What is the biggest single-day snowfall in Nianzishan?
The heaviest 24-hour snowfall measured in Nianzishan between 1940 and 2025 was 15 April 1966, with 25.6 cm.
Are there tropical nights in Nianzishan?
Yes: Nianzishan has on average 7 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Nianzishan?
In Nianzishan, between 1940 and 2025, the highest apparent temperature reached 42.3 °C on 22 July 1968, and the lowest was -44.7 °C on 10 January 2001.
Compare Nianzishan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nianzishan