Jiudian climate — normals and trends
Jiudian (China) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 12.2 °C and it receives 813 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 (25.3 °C on average) and the coldest is January (-2.4 °C). Rainfall peaks in July.
Jiudian averages 108 frost days, 32 hot days (≥ 30 °C) and 80 rainy days per year.
Jiudian has warmed by +2.0 °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 119 to 97 per year over the period.
The hottest day of the period reached 38.4 °C (on 5 July 2025) and the coldest -20.4 °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
JiudianShandong
- coords
- 36.99°, 120.20°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.2°C
Average daily high
17.0°C
Average daily low
8.0°C
Annual rainfall
813mm
Sunshine / day
9.1h
Mean relative humidity
69%
Average peak wind
16.4km/h
Seasonal range
27.7°C
Frost days (< 0 °C)
108 d/yr
Hot days (≥ 30 °C)
32 d/yr
Rainy days (≥ 1 mm)
80 d/yr
Annual snowfall
16.1 cm
Average feels-like high
15.7 °C
Average feels-like low
6.2 °C
Average peak gust
35.2 km/h
Tropical nights (≥ 20 °C)
57 d/yr
Solar radiation
15.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.46 · 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
38.4 °C
5 July 2025
Coldest day
-20.4 °C
18 January 1958
Wettest day
155 mm
2 August 1940
Windiest day
53.2 km/h
2 August 1940
Strongest gust
121.0 km/h
2 August 1940
Hottest feels-like
44.5 °C
9 August 1967
Coldest feels-like
-25.2 °C
18 January 1958
Snowiest day
13.7 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 | 4.9 °C | +2.9 °C | 2 mm | -8 mm |
| Feb | 5.6 °C | +1.1 °C | 4 mm | -10 mm |
| Mar | 13.4 °C | +2.9 °C | 52 mm | +30 mm |
| Apr | 21.5 °C | +3.8 °C | 33 mm | -11 mm |
| May | 24.6 °C | +1.1 °C | 76 mm | +13 mm |
| Jun | 30.3 °C | +3.0 °C | 91 mm | +1 mm |
| Jul | 33.1 °C | +4.0 °C | 72 mm | -154 mm |
| Aug | 31.9 °C | +3.0 °C | 209 mm | +30 mm |
| Sep | 26.7 °C | +1.6 °C | 175 mm | +89 mm |
| Oct | 18.2 °C | -1.0 °C | 142 mm | +105 mm |
| Nov | 14.4 °C | +2.9 °C | 6 mm | -22 mm |
| Dec | 6.5 °C | +2.2 °C | 14 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 Jiudian?
Jiudian has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 12.2 °C and it receives 813 mm of precipitation per year.
What is the hottest day ever recorded in Jiudian?
The hottest day measured in Jiudian between 1940 and 2025 was 5 July 2025, reaching 38.4 °C.
What is the coldest day in Jiudian?
The coldest day measured in Jiudian between 1940 and 2025 was 18 January 1958, at -20.4 °C.
Does it snow in Jiudian?
Yes. Jiudian gets on average 16.1 cm of snow per year and has around 108 frost days.
Has the climate of Jiudian warmed?
Yes: Jiudian warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Jiudian?
The wettest day measured in Jiudian between 1940 and 2025 was 2 August 1940, with 155 mm of rain in 24 hours.
What was the windiest day in Jiudian?
The windiest day measured in Jiudian between 1940 and 2025 was 2 August 1940, with winds reaching 53.2 km/h.
What is the warmest month in Jiudian?
The warmest month in Jiudian is July (25.3 °C on average); the coldest is January (-2.4 °C).
How much does it rain in Jiudian?
Jiudian receives on average 813 mm of precipitation per year, spread over about 80 rainy days.
Is it sunny in Jiudian?
Jiudian 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 Jiudian?
The heaviest 24-hour snowfall measured in Jiudian between 1940 and 2025 was 29 January 1979, with 13.7 cm.
Are there tropical nights in Jiudian?
Yes: Jiudian has on average 57 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Jiudian?
In Jiudian, between 1940 and 2025, the highest apparent temperature reached 44.5 °C on 9 August 1967, and the lowest was -25.2 °C on 18 January 1958.
Compare Jiudian with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Jiudian