Mapo climate — normals and trends
Mapo (China) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 14.8 °C and it receives 951 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 (27.3 °C on average) and the coldest is January (0.3 °C). Rainfall peaks in July.
Mapo averages 73 frost days, 66 hot days (≥ 30 °C) and 87 rainy days per year.
Mapo has warmed by +1.4 °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 86 to 60 per year over the period.
The hottest day of the period reached 41.3 °C (on 3 July 1941) and the coldest -25.7 °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
MapoJiangsu
- coords
- 34.52°, 117.07°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.8°C
Average daily high
19.4°C
Average daily low
10.5°C
Annual rainfall
951mm
Sunshine / day
8.6h
Mean relative humidity
69%
Average peak wind
14.7km/h
Seasonal range
27.0°C
Frost days (< 0 °C)
73 d/yr
Hot days (≥ 30 °C)
66 d/yr
Rainy days (≥ 1 mm)
87 d/yr
Annual snowfall
14.5 cm
Average feels-like high
18.9 °C
Average feels-like low
9.4 °C
Average peak gust
30.6 km/h
Tropical nights (≥ 20 °C)
89 d/yr
Solar radiation
15.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.26 · 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
41.3 °C
3 July 1941
Coldest day
-25.7 °C
11 January 1955
Wettest day
228 mm
29 June 1942
Windiest day
43.2 km/h
17 April 1946
Strongest gust
85.0 km/h
25 June 1971
Hottest feels-like
45.6 °C
11 August 1946
Coldest feels-like
-31.3 °C
11 January 1955
Snowiest day
19.5 cm
7 February 1964
Sunniest day
14.0 h
12 June 1950
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 | 8.3 °C | +3.4 °C | 7 mm | -10 mm |
| Feb | 9.0 °C | +1.4 °C | 3 mm | -20 mm |
| Mar | 16.5 °C | +3.0 °C | 46 mm | +9 mm |
| Apr | 24.5 °C | +4.2 °C | 25 mm | -34 mm |
| May | 27.9 °C | +2.0 °C | 26 mm | -43 mm |
| Jun | 32.4 °C | +2.0 °C | 128 mm | +15 mm |
| Jul | 35.4 °C | +4.4 °C | 18 mm | -255 mm |
| Aug | 32.9 °C | +2.5 °C | 184 mm | +14 mm |
| Sep | 25.9 °C | -0.4 °C | 256 mm | +156 mm |
| Oct | 19.3 °C | -1.9 °C | 141 mm | +97 mm |
| Nov | 17.0 °C | +3.0 °C | 16 mm | -16 mm |
| Dec | 9.9 °C | +2.7 °C | 13 mm | -3 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 Mapo?
Mapo has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 14.8 °C and it receives 951 mm of precipitation per year.
What is the hottest day ever recorded in Mapo?
The hottest day measured in Mapo between 1940 and 2025 was 3 July 1941, reaching 41.3 °C.
What is the coldest day in Mapo?
The coldest day measured in Mapo between 1940 and 2025 was 11 January 1955, at -25.7 °C.
Does it snow in Mapo?
Yes. Mapo gets on average 14.5 cm of snow per year and has around 73 frost days.
Has the climate of Mapo warmed?
Yes: Mapo warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mapo?
The wettest day measured in Mapo between 1940 and 2025 was 29 June 1942, with 228 mm of rain in 24 hours.
What was the windiest day in Mapo?
The windiest day measured in Mapo between 1940 and 2025 was 17 April 1946, with winds reaching 43.2 km/h.
What is the warmest month in Mapo?
The warmest month in Mapo is July (27.3 °C on average); the coldest is January (0.3 °C).
How much does it rain in Mapo?
Mapo receives on average 951 mm of precipitation per year, spread over about 87 rainy days.
Is it sunny in Mapo?
Mapo gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.
What is the biggest single-day snowfall in Mapo?
The heaviest 24-hour snowfall measured in Mapo between 1940 and 2025 was 7 February 1964, with 19.5 cm.
Are there tropical nights in Mapo?
Yes: Mapo has on average 89 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mapo?
In Mapo, between 1940 and 2025, the highest apparent temperature reached 45.6 °C on 11 August 1946, and the lowest was -31.3 °C on 11 January 1955.
Compare Mapo with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mapo