Longxi climate — normals and trends
Longxi (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.0 °C and it receives 1,247 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 (25.2 °C on average) and the coldest is January (3.9 °C). Rainfall peaks in July.
Longxi averages 25 frost days, 33 hot days (≥ 30 °C) and 152 rainy days per year.
Longxi has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The number of frost days there went from about 37 to 13 per year over the period.
The hottest day of the period reached 38.9 °C (on 23 August 1961) and the coldest -16.5 °C (on 28 December 1991).
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
LongxiChongqing Municipality
- coords
- 31.30°, 109.64°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.0°C
Average daily high
18.6°C
Average daily low
11.4°C
Annual rainfall
1,247mm
Sunshine / day
7.3h
Mean relative humidity
75%
Average peak wind
5.6km/h
Seasonal range
21.3°C
Frost days (< 0 °C)
25 d/yr
Hot days (≥ 30 °C)
33 d/yr
Rainy days (≥ 1 mm)
152 d/yr
Annual snowfall
19.4 cm
Average feels-like high
19.2 °C
Average feels-like low
11.2 °C
Average peak gust
24.6 km/h
Tropical nights (≥ 20 °C)
66 d/yr
Solar radiation
12.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °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
38.9 °C
23 August 1961
Coldest day
-16.5 °C
28 December 1991
Wettest day
266 mm
20 July 1987
Windiest day
17.1 km/h
25 May 1946
Strongest gust
88.6 km/h
1 April 1947
Hottest feels-like
42.7 °C
15 August 2022
Coldest feels-like
-20.9 °C
28 December 1991
Snowiest day
13.1 cm
8 March 1996
Sunniest day
13.8 h
30 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 | 9.3 °C | +2.2 °C | 48 mm | +13 mm |
| Feb | 9.2 °C | +0.2 °C | 22 mm | -23 mm |
| Mar | 14.4 °C | +0.5 °C | 77 mm | -2 mm |
| Apr | 22.3 °C | +3.1 °C | 41 mm | -53 mm |
| May | 26.6 °C | +3.5 °C | 65 mm | -65 mm |
| Jun | 27.3 °C | +0.9 °C | 147 mm | -16 mm |
| Jul | 34.4 °C | +5.4 °C | 26 mm | -172 mm |
| Aug | 31.6 °C | +2.2 °C | 170 mm | +34 mm |
| Sep | 26.2 °C | +1.4 °C | 146 mm | +1 mm |
| Oct | 20.2 °C | +1.1 °C | 223 mm | +110 mm |
| Nov | 14.8 °C | +1.0 °C | 45 mm | -25 mm |
| Dec | 11.4 °C | +2.7 °C | 40 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 Longxi?
Longxi has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.0 °C and it receives 1,247 mm of precipitation per year.
What is the hottest day ever recorded in Longxi?
The hottest day measured in Longxi between 1940 and 2025 was 23 August 1961, reaching 38.9 °C.
What is the coldest day in Longxi?
The coldest day measured in Longxi between 1940 and 2025 was 28 December 1991, at -16.5 °C.
Does it snow in Longxi?
Yes. Longxi gets on average 19.4 cm of snow per year and has around 25 frost days.
Has the climate of Longxi warmed?
Yes: Longxi warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Longxi?
The wettest day measured in Longxi between 1940 and 2025 was 20 July 1987, with 266 mm of rain in 24 hours.
What was the windiest day in Longxi?
The windiest day measured in Longxi between 1940 and 2025 was 25 May 1946, with winds reaching 17.1 km/h.
What is the warmest month in Longxi?
The warmest month in Longxi is July (25.2 °C on average); the coldest is January (3.9 °C).
How much does it rain in Longxi?
Longxi receives on average 1,247 mm of precipitation per year, spread over about 152 rainy days.
Is it sunny in Longxi?
Longxi gets on average 7.3 hours of sunshine per day, roughly 2,665 hours per year over 1940-2025.
What is the biggest single-day snowfall in Longxi?
The heaviest 24-hour snowfall measured in Longxi between 1940 and 2025 was 8 March 1996, with 13.1 cm.
Are there tropical nights in Longxi?
Yes: Longxi has on average 66 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Longxi?
In Longxi, between 1940 and 2025, the highest apparent temperature reached 42.7 °C on 15 August 2022, and the lowest was -20.9 °C on 28 December 1991.
Compare Longxi with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Longxi