Bor climate — normals and trends
Bor (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.4 °C and it receives 616 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 (19.1 °C on average) and the coldest is January (-10.7 °C). Rainfall peaks in July.
Bor averages 163 frost days, 5 hot days (≥ 30 °C) and 129 rainy days per year.
Bor has warmed by +2.8 °C between 1940 and 2025, or +0.33 °C per decade. This trend is statistically significant.
The number of frost days there went from about 175 to 151 per year over the period.
The hottest day of the period reached 37.6 °C (on 29 July 2010) and the coldest -44.6 °C (on 31 December 1978).
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
BorNizhny Novgorod Oblast
- coords
- 56.36°, 44.07°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.4°C
Average daily high
8.0°C
Average daily low
0.7°C
Annual rainfall
616mm
Sunshine / day
7.0h
Mean relative humidity
76%
Average peak wind
17.1km/h
Seasonal range
29.8°C
Frost days (< 0 °C)
163 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
129 d/yr
Annual snowfall
128.8 cm
Average feels-like high
4.9 °C
Average feels-like low
-2.8 °C
Average peak gust
34.4 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
10.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °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
37.6 °C
29 July 2010
Coldest day
-44.6 °C
31 December 1978
Wettest day
49 mm
27 August 1980
Windiest day
43.0 km/h
24 October 1989
Strongest gust
92.5 km/h
12 November 2022
Hottest feels-like
39.5 °C
6 August 2010
Coldest feels-like
-50.1 °C
31 December 1978
Snowiest day
18.4 cm
16 October 1971
Sunniest day
16.4 h
28 June 2016
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 | -0.7 °C | +7.4 °C | 51 mm | +15 mm |
| Feb | -4.3 °C | +2.2 °C | 16 mm | -16 mm |
| Mar | 6.5 °C | +6.6 °C | 28 mm | -4 mm |
| Apr | 12.5 °C | +2.8 °C | 45 mm | +6 mm |
| May | 18.8 °C | +1.2 °C | 61 mm | +5 mm |
| Jun | 21.1 °C | -0.6 °C | 62 mm | -6 mm |
| Jul | 25.8 °C | +2.2 °C | 53 mm | -25 mm |
| Aug | 21.9 °C | +0.1 °C | 134 mm | +67 mm |
| Sep | 17.5 °C | +2.2 °C | 14 mm | -44 mm |
| Oct | 9.5 °C | +2.4 °C | 38 mm | -22 mm |
| Nov | 4.9 °C | +5.5 °C | 69 mm | +23 mm |
| Dec | -1.8 °C | +3.6 °C | 36 mm | -8 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 Bor?
Bor has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.4 °C and it receives 616 mm of precipitation per year.
What is the hottest day ever recorded in Bor?
The hottest day measured in Bor between 1940 and 2025 was 29 July 2010, reaching 37.6 °C.
What is the coldest day in Bor?
The coldest day measured in Bor between 1940 and 2025 was 31 December 1978, at -44.6 °C.
Does it snow in Bor?
Yes. Bor gets on average 128.8 cm of snow per year and has around 163 frost days.
Has the climate of Bor warmed?
Yes: Bor warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bor?
The wettest day measured in Bor between 1940 and 2025 was 27 August 1980, with 49 mm of rain in 24 hours.
What was the windiest day in Bor?
The windiest day measured in Bor between 1940 and 2025 was 24 October 1989, with winds reaching 43.0 km/h.
What is the warmest month in Bor?
The warmest month in Bor is July (19.1 °C on average); the coldest is January (-10.7 °C).
How much does it rain in Bor?
Bor receives on average 616 mm of precipitation per year, spread over about 129 rainy days.
Is it sunny in Bor?
Bor gets on average 7.0 hours of sunshine per day, roughly 2,555 hours per year over 1940-2025.
What is the biggest single-day snowfall in Bor?
The heaviest 24-hour snowfall measured in Bor between 1940 and 2025 was 16 October 1971, with 18.4 cm.
Are there tropical nights in Bor?
Yes: Bor has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bor?
In Bor, between 1940 and 2025, the highest apparent temperature reached 39.5 °C on 6 August 2010, and the lowest was -50.1 °C on 31 December 1978.
Compare Bor with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bor