Nanya climate — normals and trends
Nanya (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 17.2 °C and it receives 1,865 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 August (27.3 °C on average) and the coldest is January (6.5 °C). Rainfall peaks in July.
Nanya averages 5 frost days, 61 hot days (≥ 30 °C) and 173 rainy days per year.
Nanya 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 9 to 1 per year over the period.
The hottest day of the period reached 39.6 °C (on 18 August 2022) and the coldest -9.4 °C (on 20 December 1965).
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
NanyaChongqing Municipality
- coords
- 31.08°, 108.09°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.2°C
Average daily high
20.6°C
Average daily low
14.3°C
Annual rainfall
1,865mm
Sunshine / day
6.4h
Mean relative humidity
77%
Average peak wind
7.9km/h
Seasonal range
20.8°C
Frost days (< 0 °C)
5 d/yr
Hot days (≥ 30 °C)
61 d/yr
Rainy days (≥ 1 mm)
173 d/yr
Annual snowfall
5.6 cm
Average feels-like high
21.8 °C
Average feels-like low
14.8 °C
Average peak gust
23.2 km/h
Tropical nights (≥ 20 °C)
107 d/yr
Solar radiation
12.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.30 · 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
39.6 °C
18 August 2022
Coldest day
-9.4 °C
20 December 1965
Wettest day
155 mm
30 June 1991
Windiest day
30.8 km/h
28 May 1946
Strongest gust
73.1 km/h
23 June 1946
Hottest feels-like
47.1 °C
25 July 1957
Coldest feels-like
-12.9 °C
20 December 1965
Snowiest day
12.7 cm
23 February 1989
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 | 11.2 °C | +2.0 °C | 54 mm | +9 mm |
| Feb | 11.2 °C | -0.1 °C | 30 mm | -27 mm |
| Mar | 16.5 °C | +0.3 °C | 122 mm | +4 mm |
| Apr | 24.7 °C | +3.3 °C | 91 mm | -75 mm |
| May | 28.1 °C | +3.0 °C | 82 mm | -133 mm |
| Jun | 29.3 °C | +1.3 °C | 211 mm | -6 mm |
| Jul | 34.8 °C | +3.8 °C | 103 mm | -185 mm |
| Aug | 33.7 °C | +2.4 °C | 180 mm | -34 mm |
| Sep | 28.3 °C | +1.8 °C | 288 mm | +64 mm |
| Oct | 22.7 °C | +1.9 °C | 314 mm | +153 mm |
| Nov | 16.3 °C | +0.6 °C | 68 mm | -37 mm |
| Dec | 12.8 °C | +2.2 °C | 56 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 Nanya?
Nanya has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 17.2 °C and it receives 1,865 mm of precipitation per year.
What is the hottest day ever recorded in Nanya?
The hottest day measured in Nanya between 1940 and 2025 was 18 August 2022, reaching 39.6 °C.
What is the coldest day in Nanya?
The coldest day measured in Nanya between 1940 and 2025 was 20 December 1965, at -9.4 °C.
Does it snow in Nanya?
Yes. Nanya gets on average 5.6 cm of snow per year and has around 5 frost days.
Has the climate of Nanya warmed?
Yes: Nanya warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nanya?
The wettest day measured in Nanya between 1940 and 2025 was 30 June 1991, with 155 mm of rain in 24 hours.
What was the windiest day in Nanya?
The windiest day measured in Nanya between 1940 and 2025 was 28 May 1946, with winds reaching 30.8 km/h.
What is the warmest month in Nanya?
The warmest month in Nanya is August (27.3 °C on average); the coldest is January (6.5 °C).
How much does it rain in Nanya?
Nanya receives on average 1,865 mm of precipitation per year, spread over about 173 rainy days.
Is it sunny in Nanya?
Nanya 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 Nanya?
The heaviest 24-hour snowfall measured in Nanya between 1940 and 2025 was 23 February 1989, with 12.7 cm.
Are there tropical nights in Nanya?
Yes: Nanya has on average 107 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Nanya?
In Nanya, between 1940 and 2025, the highest apparent temperature reached 47.1 °C on 25 July 1957, and the lowest was -12.9 °C on 20 December 1965.
Compare Nanya with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nanya