Longkong climate — normals and trends
Longkong (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.8 °C and it receives 1,588 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 (25.8 °C on average) and the coldest is January (5.0 °C). Rainfall peaks in June.
Longkong averages 12 frost days, 42 hot days (≥ 30 °C) and 177 rainy days per year.
Longkong has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.
The number of frost days there went from about 19 to 5 per year over the period.
The hottest day of the period reached 38.2 °C (on 18 August 2022) and the coldest -8.9 °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
LongkongChongqing Municipality
- coords
- 30.04°, 107.91°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.8°C
Average daily high
19.3°C
Average daily low
12.7°C
Annual rainfall
1,588mm
Sunshine / day
6.4h
Mean relative humidity
80%
Average peak wind
7.9km/h
Seasonal range
20.8°C
Frost days (< 0 °C)
12 d/yr
Hot days (≥ 30 °C)
42 d/yr
Rainy days (≥ 1 mm)
177 d/yr
Annual snowfall
13.2 cm
Average feels-like high
20.1 °C
Average feels-like low
12.9 °C
Average peak gust
24.9 km/h
Tropical nights (≥ 20 °C)
83 d/yr
Solar radiation
11.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.32 · 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
38.2 °C
18 August 2022
Coldest day
-8.9 °C
11 February 1945
Wettest day
135 mm
4 August 1980
Windiest day
44.2 km/h
28 May 1946
Strongest gust
94.3 km/h
24 May 1946
Hottest feels-like
43.5 °C
5 August 1994
Coldest feels-like
-12.8 °C
11 February 1945
Snowiest day
12.0 cm
22 February 1989
Sunniest day
13.8 h
29 June 2008
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 | 10.1 °C | +2.2 °C | 60 mm | +15 mm |
| Feb | 9.7 °C | -0.2 °C | 35 mm | -20 mm |
| Mar | 15.1 °C | +0.3 °C | 131 mm | +23 mm |
| Apr | 22.8 °C | +2.8 °C | 137 mm | -21 mm |
| May | 25.7 °C | +2.2 °C | 142 mm | -64 mm |
| Jun | 27.2 °C | +0.9 °C | 268 mm | +58 mm |
| Jul | 32.4 °C | +2.8 °C | 129 mm | -73 mm |
| Aug | 32.0 °C | +2.1 °C | 127 mm | -27 mm |
| Sep | 27.4 °C | +1.9 °C | 225 mm | +66 mm |
| Oct | 22.0 °C | +2.3 °C | 215 mm | +73 mm |
| Nov | 15.1 °C | +0.5 °C | 73 mm | -22 mm |
| Dec | 11.9 °C | +2.4 °C | 68 mm | +15 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 Longkong?
Longkong has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.8 °C and it receives 1,588 mm of precipitation per year.
What is the hottest day ever recorded in Longkong?
The hottest day measured in Longkong between 1940 and 2025 was 18 August 2022, reaching 38.2 °C.
What is the coldest day in Longkong?
The coldest day measured in Longkong between 1940 and 2025 was 11 February 1945, at -8.9 °C.
Does it snow in Longkong?
Yes. Longkong gets on average 13.2 cm of snow per year and has around 12 frost days.
Has the climate of Longkong warmed?
Yes: Longkong warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Longkong?
The wettest day measured in Longkong between 1940 and 2025 was 4 August 1980, with 135 mm of rain in 24 hours.
What was the windiest day in Longkong?
The windiest day measured in Longkong between 1940 and 2025 was 28 May 1946, with winds reaching 44.2 km/h.
What is the warmest month in Longkong?
The warmest month in Longkong is July (25.8 °C on average); the coldest is January (5.0 °C).
How much does it rain in Longkong?
Longkong receives on average 1,588 mm of precipitation per year, spread over about 177 rainy days.
Is it sunny in Longkong?
Longkong gets on average 6.4 hours of sunshine per day, roughly 2,336 hours per year over 1940-2025.
What is the biggest single-day snowfall in Longkong?
The heaviest 24-hour snowfall measured in Longkong between 1940 and 2025 was 22 February 1989, with 12.0 cm.
Are there tropical nights in Longkong?
Yes: Longkong has on average 83 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Longkong?
In Longkong, between 1940 and 2025, the highest apparent temperature reached 43.5 °C on 5 August 1994, and the lowest was -12.8 °C on 11 February 1945.
Compare Longkong with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Longkong