Jielong climate — normals and trends
Jielong (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 17.7 °C and it receives 1,369 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 (27.7 °C on average) and the coldest is January (7.3 °C). Rainfall peaks in June.
Jielong averages 3 frost days, 69 hot days (≥ 30 °C) and 175 rainy days per year.
Jielong has warmed by +1.0 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The number of frost days there went from about 5 to 1 per year over the period.
The hottest day of the period reached 42.1 °C (on 15 August 2006) and the coldest -6.8 °C (on 11 February 1945).
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
JielongChongqing Municipality
- coords
- 29.25°, 106.78°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.7°C
Average daily high
21.2°C
Average daily low
14.7°C
Annual rainfall
1,369mm
Sunshine / day
5.9h
Mean relative humidity
79%
Average peak wind
9.1km/h
Seasonal range
20.4°C
Frost days (< 0 °C)
3 d/yr
Hot days (≥ 30 °C)
69 d/yr
Rainy days (≥ 1 mm)
175 d/yr
Annual snowfall
2.1 cm
Average feels-like high
22.5 °C
Average feels-like low
15.2 °C
Average peak gust
23.1 km/h
Tropical nights (≥ 20 °C)
107 d/yr
Solar radiation
11.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.27 · 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
42.1 °C
15 August 2006
Coldest day
-6.8 °C
11 February 1945
Wettest day
137 mm
22 July 1999
Windiest day
53.0 km/h
28 May 1946
Strongest gust
107.3 km/h
28 June 1946
Hottest feels-like
47.0 °C
27 July 1958
Coldest feels-like
-10.6 °C
11 February 1945
Snowiest day
7.7 cm
27 December 1991
Sunniest day
13.9 h
29 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 | 12.0 °C | +2.0 °C | 68 mm | +28 mm |
| Feb | 11.8 °C | -0.4 °C | 36 mm | -5 mm |
| Mar | 16.8 °C | -0.4 °C | 80 mm | +0 mm |
| Apr | 24.6 °C | +2.4 °C | 83 mm | -45 mm |
| May | 27.3 °C | +1.8 °C | 145 mm | -33 mm |
| Jun | 29.3 °C | +1.3 °C | 200 mm | +17 mm |
| Jul | 33.9 °C | +2.3 °C | 227 mm | +48 mm |
| Aug | 34.1 °C | +2.3 °C | 91 mm | -69 mm |
| Sep | 30.2 °C | +2.9 °C | 103 mm | -28 mm |
| Oct | 24.1 °C | +2.9 °C | 128 mm | +9 mm |
| Nov | 16.4 °C | 0.0 °C | 75 mm | -6 mm |
| Dec | 13.2 °C | +1.9 °C | 49 mm | -0 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 Jielong?
Jielong has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 17.7 °C and it receives 1,369 mm of precipitation per year.
What is the hottest day ever recorded in Jielong?
The hottest day measured in Jielong between 1940 and 2025 was 15 August 2006, reaching 42.1 °C.
What is the coldest day in Jielong?
The coldest day measured in Jielong between 1940 and 2025 was 11 February 1945, at -6.8 °C.
Does it snow in Jielong?
Yes. Jielong gets on average 2.1 cm of snow per year and has around 3 frost days.
Has the climate of Jielong warmed?
Yes: Jielong warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Jielong?
The wettest day measured in Jielong between 1940 and 2025 was 22 July 1999, with 137 mm of rain in 24 hours.
What was the windiest day in Jielong?
The windiest day measured in Jielong between 1940 and 2025 was 28 May 1946, with winds reaching 53.0 km/h.
What is the warmest month in Jielong?
The warmest month in Jielong is July (27.7 °C on average); the coldest is January (7.3 °C).
How much does it rain in Jielong?
Jielong receives on average 1,369 mm of precipitation per year, spread over about 175 rainy days.
Is it sunny in Jielong?
Jielong gets on average 5.9 hours of sunshine per day, roughly 2,154 hours per year over 1940-2025.
What is the biggest single-day snowfall in Jielong?
The heaviest 24-hour snowfall measured in Jielong between 1940 and 2025 was 27 December 1991, with 7.7 cm.
Are there tropical nights in Jielong?
Yes: Jielong has on average 107 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Jielong?
In Jielong, between 1940 and 2025, the highest apparent temperature reached 47.0 °C on 27 July 1958, and the lowest was -10.6 °C on 11 February 1945.
Compare Jielong with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Jielong