Mianyang climate — normals and trends
Mianyang (China) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 17.0 °C and it receives 1,098 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 (26.3 °C on average) and the coldest is January (6.2 °C). Rainfall peaks in July.
Mianyang averages 9 frost days, 54 hot days (≥ 30 °C) and 117 rainy days per year.
Mianyang has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The number of frost days there went from about 16 to 2 per year over the period.
The hottest day of the period reached 42.2 °C (on 21 August 2022) and the coldest -6.3 °C (on 5 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
MianyangSichuan
- coords
- 31.47°, 104.68°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.0°C
Average daily high
20.9°C
Average daily low
13.6°C
Annual rainfall
1,098mm
Sunshine / day
6.9h
Mean relative humidity
73%
Average peak wind
9.8km/h
Seasonal range
20.1°C
Frost days (< 0 °C)
9 d/yr
Hot days (≥ 30 °C)
54 d/yr
Rainy days (≥ 1 mm)
117 d/yr
Annual snowfall
1.0 cm
Average feels-like high
21.3 °C
Average feels-like low
13.7 °C
Average peak gust
22.7 km/h
Tropical nights (≥ 20 °C)
99 d/yr
Solar radiation
11.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.46 · 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
42.2 °C
21 August 2022
Coldest day
-6.3 °C
5 January 1955
Wettest day
279 mm
30 August 1946
Windiest day
64.5 km/h
23 May 1946
Strongest gust
83.5 km/h
12 April 1980
Hottest feels-like
45.7 °C
15 August 2022
Coldest feels-like
-10.0 °C
5 January 1955
Snowiest day
4.8 cm
13 January 1957
Sunniest day
14.0 h
10 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 | 11.5 °C | +1.6 °C | 15 mm | +5 mm |
| Feb | 11.1 °C | -0.9 °C | 30 mm | +17 mm |
| Mar | 16.5 °C | -0.6 °C | 26 mm | +1 mm |
| Apr | 26.4 °C | +3.8 °C | 15 mm | -31 mm |
| May | 30.5 °C | +3.8 °C | 55 mm | -19 mm |
| Jun | 31.7 °C | +2.8 °C | 125 mm | -16 mm |
| Jul | 33.5 °C | +3.4 °C | 190 mm | -96 mm |
| Aug | 33.3 °C | +3.4 °C | 159 mm | -95 mm |
| Sep | 27.3 °C | +1.8 °C | 228 mm | +67 mm |
| Oct | 21.3 °C | +0.6 °C | 120 mm | +66 mm |
| Nov | 16.3 °C | +0.4 °C | 7 mm | -17 mm |
| Dec | 12.7 °C | +1.7 °C | 4 mm | -6 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 Mianyang?
Mianyang has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 17.0 °C and it receives 1,098 mm of precipitation per year.
What is the hottest day ever recorded in Mianyang?
The hottest day measured in Mianyang between 1940 and 2025 was 21 August 2022, reaching 42.2 °C.
What is the coldest day in Mianyang?
The coldest day measured in Mianyang between 1940 and 2025 was 5 January 1955, at -6.3 °C.
Does it snow in Mianyang?
Almost never: Mianyang sees virtually no snow, with about 9 frost days per year.
Has the climate of Mianyang warmed?
Yes: Mianyang warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mianyang?
The wettest day measured in Mianyang between 1940 and 2025 was 30 August 1946, with 279 mm of rain in 24 hours.
What was the windiest day in Mianyang?
The windiest day measured in Mianyang between 1940 and 2025 was 23 May 1946, with winds reaching 64.5 km/h.
What is the warmest month in Mianyang?
The warmest month in Mianyang is July (26.3 °C on average); the coldest is January (6.2 °C).
How much does it rain in Mianyang?
Mianyang receives on average 1,098 mm of precipitation per year, spread over about 117 rainy days.
Is it sunny in Mianyang?
Mianyang gets on average 6.9 hours of sunshine per day, roughly 2,519 hours per year over 1940-2025.
What is the biggest single-day snowfall in Mianyang?
The heaviest 24-hour snowfall measured in Mianyang between 1940 and 2025 was 13 January 1957, with 4.8 cm.
Are there tropical nights in Mianyang?
Yes: Mianyang has on average 99 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mianyang?
In Mianyang, between 1940 and 2025, the highest apparent temperature reached 45.7 °C on 15 August 2022, and the lowest was -10.0 °C on 5 January 1955.
Compare Mianyang with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mianyang