Bolgar climate — normals and trends
Bolgar (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.3 °C and it receives 564 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 (19.9 °C on average) and the coldest is January (-11.9 °C). Rainfall peaks in July.
Bolgar averages 165 frost days, 8 hot days (≥ 30 °C) and 117 rainy days per year.
Bolgar has warmed by +3.0 °C between 1940 and 2025, or +0.35 °C per decade. This trend is statistically significant.
The number of frost days there went from about 179 to 151 per year over the period.
The hottest day of the period reached 39.0 °C (on 1 August 2010) and the coldest -45.1 °C (on 22 January 1942).
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
BolgarTatarstan Republic
- coords
- 54.97°, 49.03°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.3°C
Average daily high
7.8°C
Average daily low
0.6°C
Annual rainfall
564mm
Sunshine / day
7.5h
Mean relative humidity
76%
Average peak wind
19.0km/h
Seasonal range
31.8°C
Frost days (< 0 °C)
165 d/yr
Hot days (≥ 30 °C)
8 d/yr
Rainy days (≥ 1 mm)
117 d/yr
Annual snowfall
130.5 cm
Average feels-like high
4.5 °C
Average feels-like low
-3.1 °C
Average peak gust
34.8 km/h
Tropical nights (≥ 20 °C)
3 d/yr
Solar radiation
11.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.0 °C
since 1940
+0.4 °C per decade · r² = 0.47 · 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
39.0 °C
1 August 2010
Coldest day
-45.1 °C
22 January 1942
Wettest day
58 mm
29 July 1944
Windiest day
52.3 km/h
8 February 1958
Strongest gust
100.8 km/h
2 February 2015
Hottest feels-like
39.6 °C
11 July 1954
Coldest feels-like
-50.5 °C
22 January 1942
Snowiest day
17.4 cm
5 January 1979
Sunniest day
16.4 h
25 June 2022
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -1.9 °C | +7.4 °C | 54 mm | +17 mm |
| Feb | -6.2 °C | +2.2 °C | 15 mm | -17 mm |
| Mar | 4.7 °C | +6.5 °C | 24 mm | -10 mm |
| Apr | 15.3 °C | +6.3 °C | 34 mm | -4 mm |
| May | 19.3 °C | +1.0 °C | 67 mm | +20 mm |
| Jun | 22.1 °C | -0.3 °C | 108 mm | +48 mm |
| Jul | 25.6 °C | +1.3 °C | 38 mm | -31 mm |
| Aug | 23.8 °C | +1.2 °C | 92 mm | +33 mm |
| Sep | 18.0 °C | +1.7 °C | 18 mm | -35 mm |
| Oct | 10.4 °C | +3.0 °C | 43 mm | -11 mm |
| Nov | 5.3 °C | +6.3 °C | 56 mm | +13 mm |
| Dec | -3.1 °C | +3.3 °C | 40 mm | -1 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 Bolgar?
Bolgar has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.3 °C and it receives 564 mm of precipitation per year.
What is the hottest day ever recorded in Bolgar?
The hottest day measured in Bolgar between 1940 and 2025 was 1 August 2010, reaching 39.0 °C.
What is the coldest day in Bolgar?
The coldest day measured in Bolgar between 1940 and 2025 was 22 January 1942, at -45.1 °C.
Does it snow in Bolgar?
Yes. Bolgar gets on average 130.5 cm of snow per year and has around 165 frost days.
Has the climate of Bolgar warmed?
Yes: Bolgar warmed by +3.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bolgar?
The wettest day measured in Bolgar between 1940 and 2025 was 29 July 1944, with 58 mm of rain in 24 hours.
What was the windiest day in Bolgar?
The windiest day measured in Bolgar between 1940 and 2025 was 8 February 1958, with winds reaching 52.3 km/h.
What is the warmest month in Bolgar?
The warmest month in Bolgar is July (19.9 °C on average); the coldest is January (-11.9 °C).
How much does it rain in Bolgar?
Bolgar receives on average 564 mm of precipitation per year, spread over about 117 rainy days.
Is it sunny in Bolgar?
Bolgar gets on average 7.5 hours of sunshine per day, roughly 2,738 hours per year over 1940-2025.
What is the biggest single-day snowfall in Bolgar?
The heaviest 24-hour snowfall measured in Bolgar between 1940 and 2025 was 5 January 1979, with 17.4 cm.
Are there tropical nights in Bolgar?
Yes: Bolgar has on average 3 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bolgar?
In Bolgar, between 1940 and 2025, the highest apparent temperature reached 39.6 °C on 11 July 1954, and the lowest was -50.5 °C on 22 January 1942.
Compare Bolgar with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bolgar