Dianzi climate — normals and trends
Dianzi (China) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 12.9 °C and it receives 718 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 (26.2 °C on average) and the coldest is January (-2.0 °C). Rainfall peaks in July.
Dianzi averages 100 frost days, 47 hot days (≥ 30 °C) and 75 rainy days per year.
Dianzi has warmed by +1.9 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 111 to 89 per year over the period.
The hottest day of the period reached 40.8 °C (on 25 June 2009) and the coldest -20.7 °C (on 18 January 1958).
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
DianziShandong
- coords
- 36.90°, 119.87°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.9°C
Average daily high
17.6°C
Average daily low
8.8°C
Annual rainfall
718mm
Sunshine / day
9.1h
Mean relative humidity
67%
Average peak wind
17.7km/h
Seasonal range
28.2°C
Frost days (< 0 °C)
100 d/yr
Hot days (≥ 30 °C)
47 d/yr
Rainy days (≥ 1 mm)
75 d/yr
Annual snowfall
14.6 cm
Average feels-like high
16.3 °C
Average feels-like low
6.9 °C
Average peak gust
36.0 km/h
Tropical nights (≥ 20 °C)
69 d/yr
Solar radiation
15.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.44 · 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
40.8 °C
25 June 2009
Coldest day
-20.7 °C
18 January 1958
Wettest day
185 mm
6 July 1947
Windiest day
57.6 km/h
2 August 1940
Strongest gust
123.1 km/h
2 August 1940
Hottest feels-like
44.3 °C
28 July 1958
Coldest feels-like
-26.0 °C
18 January 1958
Snowiest day
16.0 cm
29 January 1979
Sunniest day
14.0 h
17 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 | 5.4 °C | +3.1 °C | 2 mm | -8 mm |
| Feb | 6.2 °C | +1.3 °C | 3 mm | -11 mm |
| Mar | 14.1 °C | +3.0 °C | 50 mm | +29 mm |
| Apr | 22.4 °C | +3.8 °C | 36 mm | -4 mm |
| May | 26.0 °C | +1.6 °C | 44 mm | -12 mm |
| Jun | 31.7 °C | +3.2 °C | 91 mm | +13 mm |
| Jul | 34.0 °C | +4.0 °C | 86 mm | -111 mm |
| Aug | 32.5 °C | +3.1 °C | 143 mm | -10 mm |
| Sep | 27.1 °C | +1.5 °C | 162 mm | +87 mm |
| Oct | 18.5 °C | -1.4 °C | 154 mm | +119 mm |
| Nov | 15.1 °C | +3.0 °C | 6 mm | -20 mm |
| Dec | 7.2 °C | +2.5 °C | 15 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 Dianzi?
Dianzi has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 12.9 °C and it receives 718 mm of precipitation per year.
What is the hottest day ever recorded in Dianzi?
The hottest day measured in Dianzi between 1940 and 2025 was 25 June 2009, reaching 40.8 °C.
What is the coldest day in Dianzi?
The coldest day measured in Dianzi between 1940 and 2025 was 18 January 1958, at -20.7 °C.
Does it snow in Dianzi?
Yes. Dianzi gets on average 14.6 cm of snow per year and has around 100 frost days.
Has the climate of Dianzi warmed?
Yes: Dianzi warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dianzi?
The wettest day measured in Dianzi between 1940 and 2025 was 6 July 1947, with 185 mm of rain in 24 hours.
What was the windiest day in Dianzi?
The windiest day measured in Dianzi between 1940 and 2025 was 2 August 1940, with winds reaching 57.6 km/h.
What is the warmest month in Dianzi?
The warmest month in Dianzi is July (26.2 °C on average); the coldest is January (-2.0 °C).
How much does it rain in Dianzi?
Dianzi receives on average 718 mm of precipitation per year, spread over about 75 rainy days.
Is it sunny in Dianzi?
Dianzi 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 Dianzi?
The heaviest 24-hour snowfall measured in Dianzi between 1940 and 2025 was 29 January 1979, with 16.0 cm.
Are there tropical nights in Dianzi?
Yes: Dianzi has on average 69 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Dianzi?
In Dianzi, between 1940 and 2025, the highest apparent temperature reached 44.3 °C on 28 July 1958, and the lowest was -26.0 °C on 18 January 1958.
Compare Dianzi with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dianzi