Kaifeng climate — normals and trends
Kaifeng (China) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 15.1 °C and it receives 829 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 (27.7 °C on average) and the coldest is January (0.3 °C). Rainfall peaks in July.
Kaifeng averages 74 frost days, 79 hot days (≥ 30 °C) and 83 rainy days per year.
Kaifeng has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The number of frost days there went from about 86 to 62 per year over the period.
The hottest day of the period reached 42.5 °C (on 6 June 1967) and the coldest -27.5 °C (on 13 January 1951).
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
KaifengHenan
- coords
- 34.80°, 114.31°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.1°C
Average daily high
20.0°C
Average daily low
10.7°C
Annual rainfall
829mm
Sunshine / day
8.5h
Mean relative humidity
66%
Average peak wind
15.7km/h
Seasonal range
27.4°C
Frost days (< 0 °C)
74 d/yr
Hot days (≥ 30 °C)
79 d/yr
Rainy days (≥ 1 mm)
83 d/yr
Annual snowfall
19.9 cm
Average feels-like high
19.3 °C
Average feels-like low
9.3 °C
Average peak gust
31.0 km/h
Tropical nights (≥ 20 °C)
91 d/yr
Solar radiation
15.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °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
42.5 °C
6 June 1967
Coldest day
-27.5 °C
13 January 1951
Wettest day
220 mm
4 August 1965
Windiest day
46.4 km/h
9 April 1957
Strongest gust
86.8 km/h
2 May 1982
Hottest feels-like
46.8 °C
22 July 1958
Coldest feels-like
-32.4 °C
13 January 1951
Snowiest day
14.6 cm
19 November 1993
Sunniest day
13.9 h
17 June 1951
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 | 8.5 °C | +3.3 °C | 24 mm | +12 mm |
| Feb | 9.9 °C | +1.6 °C | 2 mm | -16 mm |
| Mar | 17.4 °C | +2.8 °C | 49 mm | +18 mm |
| Apr | 26.5 °C | +5.0 °C | 18 mm | -30 mm |
| May | 30.0 °C | +2.8 °C | 24 mm | -38 mm |
| Jun | 33.5 °C | +1.7 °C | 95 mm | +6 mm |
| Jul | 35.1 °C | +3.4 °C | 110 mm | -107 mm |
| Aug | 33.4 °C | +3.0 °C | 163 mm | -8 mm |
| Sep | 25.0 °C | -1.4 °C | 250 mm | +154 mm |
| Oct | 17.7 °C | -3.6 °C | 148 mm | +103 mm |
| Nov | 17.5 °C | +3.5 °C | 22 mm | -8 mm |
| Dec | 10.4 °C | +3.0 °C | 16 mm | +4 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 Kaifeng?
Kaifeng has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 15.1 °C and it receives 829 mm of precipitation per year.
What is the hottest day ever recorded in Kaifeng?
The hottest day measured in Kaifeng between 1940 and 2025 was 6 June 1967, reaching 42.5 °C.
What is the coldest day in Kaifeng?
The coldest day measured in Kaifeng between 1940 and 2025 was 13 January 1951, at -27.5 °C.
Does it snow in Kaifeng?
Yes. Kaifeng gets on average 19.9 cm of snow per year and has around 74 frost days.
Has the climate of Kaifeng warmed?
Yes: Kaifeng warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kaifeng?
The wettest day measured in Kaifeng between 1940 and 2025 was 4 August 1965, with 220 mm of rain in 24 hours.
What was the windiest day in Kaifeng?
The windiest day measured in Kaifeng between 1940 and 2025 was 9 April 1957, with winds reaching 46.4 km/h.
What is the warmest month in Kaifeng?
The warmest month in Kaifeng is July (27.7 °C on average); the coldest is January (0.3 °C).
How much does it rain in Kaifeng?
Kaifeng receives on average 829 mm of precipitation per year, spread over about 83 rainy days.
Is it sunny in Kaifeng?
Kaifeng gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kaifeng?
The heaviest 24-hour snowfall measured in Kaifeng between 1940 and 2025 was 19 November 1993, with 14.6 cm.
Are there tropical nights in Kaifeng?
Yes: Kaifeng has on average 91 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kaifeng?
In Kaifeng, between 1940 and 2025, the highest apparent temperature reached 46.8 °C on 22 July 1958, and the lowest was -32.4 °C on 13 January 1951.
Compare Kaifeng with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kaifeng