Kaluga climate — normals and trends
Kaluga (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 5.0 °C and it receives 674 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 (18.4 °C on average) and the coldest is January (-8.8 °C). Rainfall peaks in July.
Kaluga averages 156 frost days, 3 hot days (≥ 30 °C) and 134 rainy days per year.
Kaluga has warmed by +3.3 °C between 1940 and 2025, or +0.39 °C per decade. This trend is statistically significant.
The number of frost days there went from about 172 to 140 per year over the period.
The hottest day of the period reached 37.6 °C (on 6 August 2010) and the coldest -43.8 °C (on 17 January 1940).
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
KalugaKaluga Oblast
- coords
- 54.53°, 36.27°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
5.0°C
Average daily high
8.6°C
Average daily low
1.3°C
Annual rainfall
674mm
Sunshine / day
6.8h
Mean relative humidity
79%
Average peak wind
20.2km/h
Seasonal range
27.2°C
Frost days (< 0 °C)
156 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
134 d/yr
Annual snowfall
127.0 cm
Average feels-like high
5.3 °C
Average feels-like low
-2.5 °C
Average peak gust
36.4 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.3 °C
since 1940
+0.4 °C per decade · r² = 0.54 · 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
6 August 2010
Coldest day
-43.8 °C
17 January 1940
Wettest day
49 mm
14 July 2020
Windiest day
60.4 km/h
15 December 1981
Strongest gust
100.4 km/h
23 November 2008
Hottest feels-like
38.0 °C
6 August 2010
Coldest feels-like
-49.4 °C
17 January 1940
Snowiest day
18.3 cm
16 October 1971
Sunniest day
16.6 h
21 June 2010
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 | 1.5 °C | +7.8 °C | 34 mm | -5 mm |
| Feb | -2.8 °C | +2.5 °C | 9 mm | -27 mm |
| Mar | 7.7 °C | +7.6 °C | 52 mm | +13 mm |
| Apr | 13.0 °C | +3.2 °C | 62 mm | +17 mm |
| May | 17.7 °C | +0.4 °C | 34 mm | -31 mm |
| Jun | 19.8 °C | -1.2 °C | 144 mm | +69 mm |
| Jul | 25.5 °C | +2.7 °C | 111 mm | +21 mm |
| Aug | 20.6 °C | -1.1 °C | 91 mm | +18 mm |
| Sep | 18.0 °C | +2.2 °C | 14 mm | -47 mm |
| Oct | 9.7 °C | +1.3 °C | 90 mm | +34 mm |
| Nov | 5.3 °C | +4.4 °C | 65 mm | +16 mm |
| Dec | -0.8 °C | +2.8 °C | 43 mm | -4 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 Kaluga?
Kaluga has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 5.0 °C and it receives 674 mm of precipitation per year.
What is the hottest day ever recorded in Kaluga?
The hottest day measured in Kaluga between 1940 and 2025 was 6 August 2010, reaching 37.6 °C.
What is the coldest day in Kaluga?
The coldest day measured in Kaluga between 1940 and 2025 was 17 January 1940, at -43.8 °C.
Does it snow in Kaluga?
Yes. Kaluga gets on average 127.0 cm of snow per year and has around 156 frost days.
Has the climate of Kaluga warmed?
Yes: Kaluga warmed by +3.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kaluga?
The wettest day measured in Kaluga between 1940 and 2025 was 14 July 2020, with 49 mm of rain in 24 hours.
What was the windiest day in Kaluga?
The windiest day measured in Kaluga between 1940 and 2025 was 15 December 1981, with winds reaching 60.4 km/h.
What is the warmest month in Kaluga?
The warmest month in Kaluga is July (18.4 °C on average); the coldest is January (-8.8 °C).
How much does it rain in Kaluga?
Kaluga receives on average 674 mm of precipitation per year, spread over about 134 rainy days.
Is it sunny in Kaluga?
Kaluga gets on average 6.8 hours of sunshine per day, roughly 2,482 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kaluga?
The heaviest 24-hour snowfall measured in Kaluga between 1940 and 2025 was 16 October 1971, with 18.3 cm.
Are there tropical nights in Kaluga?
Yes: Kaluga has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kaluga?
In Kaluga, between 1940 and 2025, the highest apparent temperature reached 38.0 °C on 6 August 2010, and the lowest was -49.4 °C on 17 January 1940.
Compare Kaluga with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kaluga