Yaoji climate — normals and trends
Yaoji (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 1,017 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 (0.5 °C). Rainfall peaks in July.
Yaoji averages 72 frost days, 63 hot days (≥ 30 °C) and 94 rainy days per year.
Yaoji has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The number of frost days there went from about 84 to 60 per year over the period.
The hottest day of the period reached 41.2 °C (on 11 August 1946) and the coldest -25.4 °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
YaojiJiangsu
- coords
- 34.07°, 117.82°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.8°C
Average daily high
19.4°C
Average daily low
10.6°C
Annual rainfall
1,017mm
Sunshine / day
8.4h
Mean relative humidity
71%
Average peak wind
14.9km/h
Seasonal range
26.8°C
Frost days (< 0 °C)
72 d/yr
Hot days (≥ 30 °C)
63 d/yr
Rainy days (≥ 1 mm)
94 d/yr
Annual snowfall
14.7 cm
Average feels-like high
19.0 °C
Average feels-like low
9.5 °C
Average peak gust
30.9 km/h
Tropical nights (≥ 20 °C)
88 d/yr
Solar radiation
15.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.27 · 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
41.2 °C
11 August 1946
Coldest day
-25.4 °C
11 January 1955
Wettest day
186 mm
19 July 1990
Windiest day
45.1 km/h
9 July 1949
Strongest gust
88.2 km/h
28 July 2021
Hottest feels-like
45.9 °C
6 August 1967
Coldest feels-like
-31.1 °C
11 January 1955
Snowiest day
14.5 cm
16 February 1981
Sunniest day
14.0 h
3 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 | 8.9 °C | +3.8 °C | 6 mm | -15 mm |
| Feb | 9.4 °C | +1.8 °C | 8 mm | -21 mm |
| Mar | 16.7 °C | +3.4 °C | 53 mm | +8 mm |
| Apr | 24.9 °C | +4.9 °C | 24 mm | -35 mm |
| May | 27.8 °C | +2.2 °C | 37 mm | -43 mm |
| Jun | 31.6 °C | +1.7 °C | 169 mm | +44 mm |
| Jul | 34.7 °C | +3.8 °C | 49 mm | -234 mm |
| Aug | 32.5 °C | +2.0 °C | 253 mm | +89 mm |
| Sep | 26.4 °C | +0.1 °C | 267 mm | +158 mm |
| Oct | 20.1 °C | -1.3 °C | 128 mm | +78 mm |
| Nov | 17.3 °C | +3.0 °C | 13 mm | -21 mm |
| Dec | 10.4 °C | +2.8 °C | 13 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 Yaoji?
Yaoji has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 14.8 °C and it receives 1,017 mm of precipitation per year.
What is the hottest day ever recorded in Yaoji?
The hottest day measured in Yaoji between 1940 and 2025 was 11 August 1946, reaching 41.2 °C.
What is the coldest day in Yaoji?
The coldest day measured in Yaoji between 1940 and 2025 was 11 January 1955, at -25.4 °C.
Does it snow in Yaoji?
Yes. Yaoji gets on average 14.7 cm of snow per year and has around 72 frost days.
Has the climate of Yaoji warmed?
Yes: Yaoji warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Yaoji?
The wettest day measured in Yaoji between 1940 and 2025 was 19 July 1990, with 186 mm of rain in 24 hours.
What was the windiest day in Yaoji?
The windiest day measured in Yaoji between 1940 and 2025 was 9 July 1949, with winds reaching 45.1 km/h.
What is the warmest month in Yaoji?
The warmest month in Yaoji is July (27.3 °C on average); the coldest is January (0.5 °C).
How much does it rain in Yaoji?
Yaoji receives on average 1,017 mm of precipitation per year, spread over about 94 rainy days.
Is it sunny in Yaoji?
Yaoji gets on average 8.4 hours of sunshine per day, roughly 3,066 hours per year over 1940-2025.
What is the biggest single-day snowfall in Yaoji?
The heaviest 24-hour snowfall measured in Yaoji between 1940 and 2025 was 16 February 1981, with 14.5 cm.
Are there tropical nights in Yaoji?
Yes: Yaoji has on average 88 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Yaoji?
In Yaoji, between 1940 and 2025, the highest apparent temperature reached 45.9 °C on 6 August 1967, and the lowest was -31.1 °C on 11 January 1955.
Compare Yaoji with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Yaoji