Bole climate — normals and trends
Bole (China) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 5.7 °C and it receives 283 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 (21.9 °C on average) and the coldest is January (-13.2 °C). Rainfall peaks in May.
Bole averages 165 frost days, 20 hot days (≥ 30 °C) and 64 rainy days per year.
Bole has warmed by +1.3 °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 173 to 157 per year over the period.
The hottest day of the period reached 39.7 °C (on 8 July 1943) and the coldest -35.3 °C (on 30 November 1952).
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
BoleXinjiang
- coords
- 44.89°, 82.07°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
5.7°C
Average daily high
10.9°C
Average daily low
0.4°C
Annual rainfall
283mm
Sunshine / day
10.4h
Mean relative humidity
60%
Average peak wind
9.1km/h
Seasonal range
35.1°C
Frost days (< 0 °C)
165 d/yr
Hot days (≥ 30 °C)
20 d/yr
Rainy days (≥ 1 mm)
64 d/yr
Annual snowfall
40.4 cm
Average feels-like high
8.6 °C
Average feels-like low
-2.8 °C
Average peak gust
20.7 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
15.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.13 · 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
39.7 °C
8 July 1943
Coldest day
-35.3 °C
30 November 1952
Wettest day
31 mm
13 May 1952
Windiest day
33.0 km/h
18 April 1998
Strongest gust
71.3 km/h
18 April 1998
Hottest feels-like
39.2 °C
8 July 1943
Coldest feels-like
-40.3 °C
30 November 1952
Snowiest day
9.2 cm
7 December 1986
Sunniest day
15.0 h
1 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 | -7.3 °C | +1.7 °C | 11 mm | +6 mm |
| Feb | -4.8 °C | +1.0 °C | 0 mm | -7 mm |
| Mar | 4.8 °C | +1.1 °C | 28 mm | +9 mm |
| Apr | 19.4 °C | +4.7 °C | 34 mm | -4 mm |
| May | 24.6 °C | +3.7 °C | 36 mm | -10 mm |
| Jun | 29.6 °C | +3.9 °C | 21 mm | -13 mm |
| Jul | 31.0 °C | +3.1 °C | 12 mm | -18 mm |
| Aug | 27.9 °C | +1.3 °C | 16 mm | -9 mm |
| Sep | 20.6 °C | 0.0 °C | 51 mm | +25 mm |
| Oct | 10.1 °C | -1.3 °C | 30 mm | +3 mm |
| Nov | 4.0 °C | +3.2 °C | 24 mm | +7 mm |
| Dec | -3.3 °C | +3.4 °C | 8 mm | +0 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 Bole?
Bole has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 5.7 °C and it receives 283 mm of precipitation per year.
What is the hottest day ever recorded in Bole?
The hottest day measured in Bole between 1940 and 2025 was 8 July 1943, reaching 39.7 °C.
What is the coldest day in Bole?
The coldest day measured in Bole between 1940 and 2025 was 30 November 1952, at -35.3 °C.
Does it snow in Bole?
Yes. Bole gets on average 40.4 cm of snow per year and has around 165 frost days.
Has the climate of Bole warmed?
Yes: Bole warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bole?
The wettest day measured in Bole between 1940 and 2025 was 13 May 1952, with 31 mm of rain in 24 hours.
What was the windiest day in Bole?
The windiest day measured in Bole between 1940 and 2025 was 18 April 1998, with winds reaching 33.0 km/h.
What is the warmest month in Bole?
The warmest month in Bole is July (21.9 °C on average); the coldest is January (-13.2 °C).
How much does it rain in Bole?
Bole receives on average 283 mm of precipitation per year, spread over about 64 rainy days.
Is it sunny in Bole?
Bole gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.
What is the biggest single-day snowfall in Bole?
The heaviest 24-hour snowfall measured in Bole between 1940 and 2025 was 7 December 1986, with 9.2 cm.
Are there tropical nights in Bole?
Yes: Bole has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bole?
In Bole, between 1940 and 2025, the highest apparent temperature reached 39.2 °C on 8 July 1943, and the lowest was -40.3 °C on 30 November 1952.
Compare Bole with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bole