Lu'an climate — normals and trends
Lu'an (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.0 °C and it receives 1,151 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 (28.2 °C on average) and the coldest is January (2.5 °C). Rainfall peaks in July.
Lu'an averages 47 frost days, 74 hot days (≥ 30 °C) and 122 rainy days per year.
Lu'an has warmed by +1.2 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The number of frost days there went from about 56 to 38 per year over the period.
The hottest day of the period reached 41.9 °C (on 11 August 1946) and the coldest -23.9 °C (on 11 January 1955).
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
Lu'anAnhui
- coords
- 31.74°, 116.52°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.0°C
Average daily high
20.6°C
Average daily low
12.0°C
Annual rainfall
1,151mm
Sunshine / day
7.8h
Mean relative humidity
75%
Average peak wind
13.0km/h
Seasonal range
25.7°C
Frost days (< 0 °C)
47 d/yr
Hot days (≥ 30 °C)
74 d/yr
Rainy days (≥ 1 mm)
122 d/yr
Annual snowfall
21.8 cm
Average feels-like high
21.0 °C
Average feels-like low
11.6 °C
Average peak gust
27.5 km/h
Tropical nights (≥ 20 °C)
99 d/yr
Solar radiation
14.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.2 °C per decade · r² = 0.25 · 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
41.9 °C
11 August 1946
Coldest day
-23.9 °C
11 January 1955
Wettest day
162 mm
1 July 2016
Windiest day
39.6 km/h
2 August 1956
Strongest gust
78.5 km/h
17 August 2018
Hottest feels-like
47.6 °C
24 July 2003
Coldest feels-like
-29.0 °C
11 January 1955
Snowiest day
24.9 cm
4 January 2018
Sunniest day
13.8 h
30 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 | 11.0 °C | +4.0 °C | 30 mm | -12 mm |
| Feb | 11.0 °C | +1.8 °C | 16 mm | -39 mm |
| Mar | 17.7 °C | +2.9 °C | 48 mm | -33 mm |
| Apr | 26.2 °C | +5.0 °C | 83 mm | -13 mm |
| May | 28.1 °C | +2.2 °C | 160 mm | +36 mm |
| Jun | 29.1 °C | -0.2 °C | 262 mm | +79 mm |
| Jul | 34.6 °C | +2.4 °C | 65 mm | -130 mm |
| Aug | 33.8 °C | +2.0 °C | 176 mm | +42 mm |
| Sep | 27.8 °C | +0.4 °C | 140 mm | +42 mm |
| Oct | 21.8 °C | -0.3 °C | 83 mm | +21 mm |
| Nov | 18.8 °C | +2.8 °C | 22 mm | -28 mm |
| Dec | 12.9 °C | +3.2 °C | 19 mm | -13 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 Lu'an?
Lu'an has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.0 °C and it receives 1,151 mm of precipitation per year.
What is the hottest day ever recorded in Lu'an?
The hottest day measured in Lu'an between 1940 and 2025 was 11 August 1946, reaching 41.9 °C.
What is the coldest day in Lu'an?
The coldest day measured in Lu'an between 1940 and 2025 was 11 January 1955, at -23.9 °C.
Does it snow in Lu'an?
Yes. Lu'an gets on average 21.8 cm of snow per year and has around 47 frost days.
Has the climate of Lu'an warmed?
Yes: Lu'an warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Lu'an?
The wettest day measured in Lu'an between 1940 and 2025 was 1 July 2016, with 162 mm of rain in 24 hours.
What was the windiest day in Lu'an?
The windiest day measured in Lu'an between 1940 and 2025 was 2 August 1956, with winds reaching 39.6 km/h.
What is the warmest month in Lu'an?
The warmest month in Lu'an is July (28.2 °C on average); the coldest is January (2.5 °C).
How much does it rain in Lu'an?
Lu'an receives on average 1,151 mm of precipitation per year, spread over about 122 rainy days.
Is it sunny in Lu'an?
Lu'an gets on average 7.8 hours of sunshine per day, roughly 2,847 hours per year over 1940-2025.
What is the biggest single-day snowfall in Lu'an?
The heaviest 24-hour snowfall measured in Lu'an between 1940 and 2025 was 4 January 2018, with 24.9 cm.
Are there tropical nights in Lu'an?
Yes: Lu'an has on average 99 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Lu'an?
In Lu'an, between 1940 and 2025, the highest apparent temperature reached 47.6 °C on 24 July 2003, and the lowest was -29.0 °C on 11 January 1955.
Compare Lu'an with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Lu'an