Nanyang climate — normals and trends
Nanyang (China) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 15.4 °C and it receives 1,045 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 (27.4 °C on average) and the coldest is January (1.7 °C). Rainfall peaks in July.
Nanyang averages 57 frost days, 72 hot days (≥ 30 °C) and 102 rainy days per year.
Nanyang has warmed by +1.5 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The number of frost days there went from about 70 to 44 per year over the period.
The hottest day of the period reached 40.7 °C (on 10 July 1941) and the coldest -20.7 °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
NanyangHenan
- coords
- 33.01°, 112.55°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.4°C
Average daily high
20.1°C
Average daily low
11.3°C
Annual rainfall
1,045mm
Sunshine / day
8.1h
Mean relative humidity
71%
Average peak wind
13.7km/h
Seasonal range
25.7°C
Frost days (< 0 °C)
57 d/yr
Hot days (≥ 30 °C)
72 d/yr
Rainy days (≥ 1 mm)
102 d/yr
Annual snowfall
20.0 cm
Average feels-like high
20.0 °C
Average feels-like low
10.5 °C
Average peak gust
29.0 km/h
Tropical nights (≥ 20 °C)
92 d/yr
Solar radiation
14.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.29 · 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
40.7 °C
10 July 1941
Coldest day
-20.7 °C
11 January 1955
Wettest day
273 mm
7 August 1975
Windiest day
41.7 km/h
21 February 1979
Strongest gust
81.7 km/h
21 February 1979
Hottest feels-like
47.1 °C
15 August 2022
Coldest feels-like
-26.3 °C
16 January 1955
Snowiest day
13.0 cm
18 November 1993
Sunniest day
13.5 h
17 June 1949
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 | 9.7 °C | +3.1 °C | 43 mm | +26 mm |
| Feb | 10.4 °C | +1.2 °C | 3 mm | -23 mm |
| Mar | 17.1 °C | +2.4 °C | 51 mm | +2 mm |
| Apr | 26.0 °C | +4.8 °C | 23 mm | -49 mm |
| May | 29.5 °C | +3.1 °C | 55 mm | -40 mm |
| Jun | 31.6 °C | +1.0 °C | 102 mm | -27 mm |
| Jul | 35.0 °C | +3.7 °C | 95 mm | -143 mm |
| Aug | 33.2 °C | +2.8 °C | 167 mm | -16 mm |
| Sep | 24.5 °C | -1.7 °C | 314 mm | +199 mm |
| Oct | 17.9 °C | -3.4 °C | 145 mm | +83 mm |
| Nov | 18.0 °C | +3.1 °C | 21 mm | -19 mm |
| Dec | 11.7 °C | +2.9 °C | 15 mm | -2 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 Nanyang?
Nanyang has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 15.4 °C and it receives 1,045 mm of precipitation per year.
What is the hottest day ever recorded in Nanyang?
The hottest day measured in Nanyang between 1940 and 2025 was 10 July 1941, reaching 40.7 °C.
What is the coldest day in Nanyang?
The coldest day measured in Nanyang between 1940 and 2025 was 11 January 1955, at -20.7 °C.
Does it snow in Nanyang?
Yes. Nanyang gets on average 20.0 cm of snow per year and has around 57 frost days.
Has the climate of Nanyang warmed?
Yes: Nanyang warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nanyang?
The wettest day measured in Nanyang between 1940 and 2025 was 7 August 1975, with 273 mm of rain in 24 hours.
What was the windiest day in Nanyang?
The windiest day measured in Nanyang between 1940 and 2025 was 21 February 1979, with winds reaching 41.7 km/h.
What is the warmest month in Nanyang?
The warmest month in Nanyang is July (27.4 °C on average); the coldest is January (1.7 °C).
How much does it rain in Nanyang?
Nanyang receives on average 1,045 mm of precipitation per year, spread over about 102 rainy days.
Is it sunny in Nanyang?
Nanyang gets on average 8.1 hours of sunshine per day, roughly 2,957 hours per year over 1940-2025.
What is the biggest single-day snowfall in Nanyang?
The heaviest 24-hour snowfall measured in Nanyang between 1940 and 2025 was 18 November 1993, with 13.0 cm.
Are there tropical nights in Nanyang?
Yes: Nanyang has on average 92 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Nanyang?
In Nanyang, between 1940 and 2025, the highest apparent temperature reached 47.1 °C on 15 August 2022, and the lowest was -26.3 °C on 16 January 1955.
Compare Nanyang with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nanyang