Obninsk climate — normals and trends
Obninsk (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.9 °C and it receives 672 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 (18.3 °C on average) and the coldest is January (-8.9 °C). Rainfall peaks in July.
Obninsk averages 157 frost days, 3 hot days (≥ 30 °C) and 133 rainy days per year.
Obninsk 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 173 to 141 per year over the period.
The hottest day of the period reached 37.3 °C (on 28 July 2010) and the coldest -43.0 °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
ObninskKaluga Oblast
- coords
- 55.11°, 36.61°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.9°C
Average daily high
8.4°C
Average daily low
1.1°C
Annual rainfall
672mm
Sunshine / day
6.9h
Mean relative humidity
79%
Average peak wind
18.9km/h
Seasonal range
27.2°C
Frost days (< 0 °C)
157 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
133 d/yr
Annual snowfall
131.4 cm
Average feels-like high
5.2 °C
Average feels-like low
-2.5 °C
Average peak gust
35.6 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.3 °C
since 1940
+0.4 °C per decade · r² = 0.53 · 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
37.3 °C
28 July 2010
Coldest day
-43.0 °C
17 January 1940
Wettest day
50 mm
19 July 1999
Windiest day
52.3 km/h
30 December 1968
Strongest gust
93.6 km/h
30 November 1974
Hottest feels-like
38.7 °C
6 August 2010
Coldest feels-like
-48.8 °C
17 January 1940
Snowiest day
24.5 cm
16 October 1971
Sunniest day
16.8 h
12 June 2023
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 | 1.3 °C | +7.7 °C | 35 mm | -3 mm |
| Feb | -2.6 °C | +2.7 °C | 6 mm | -30 mm |
| Mar | 7.7 °C | +7.5 °C | 41 mm | +3 mm |
| Apr | 12.6 °C | +3.0 °C | 57 mm | +13 mm |
| May | 17.5 °C | +0.4 °C | 48 mm | -17 mm |
| Jun | 20.0 °C | -0.9 °C | 128 mm | +53 mm |
| Jul | 25.6 °C | +2.9 °C | 127 mm | +38 mm |
| Aug | 20.6 °C | -0.8 °C | 86 mm | +13 mm |
| Sep | 17.8 °C | +2.3 °C | 14 mm | -46 mm |
| Oct | 9.4 °C | +1.3 °C | 93 mm | +36 mm |
| Nov | 5.1 °C | +4.4 °C | 63 mm | +14 mm |
| Dec | -0.7 °C | +3.0 °C | 40 mm | -7 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 Obninsk?
Obninsk has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.9 °C and it receives 672 mm of precipitation per year.
What is the hottest day ever recorded in Obninsk?
The hottest day measured in Obninsk between 1940 and 2025 was 28 July 2010, reaching 37.3 °C.
What is the coldest day in Obninsk?
The coldest day measured in Obninsk between 1940 and 2025 was 17 January 1940, at -43.0 °C.
Does it snow in Obninsk?
Yes. Obninsk gets on average 131.4 cm of snow per year and has around 157 frost days.
Has the climate of Obninsk warmed?
Yes: Obninsk warmed by +3.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Obninsk?
The wettest day measured in Obninsk between 1940 and 2025 was 19 July 1999, with 50 mm of rain in 24 hours.
What was the windiest day in Obninsk?
The windiest day measured in Obninsk between 1940 and 2025 was 30 December 1968, with winds reaching 52.3 km/h.
What is the warmest month in Obninsk?
The warmest month in Obninsk is July (18.3 °C on average); the coldest is January (-8.9 °C).
How much does it rain in Obninsk?
Obninsk receives on average 672 mm of precipitation per year, spread over about 133 rainy days.
Is it sunny in Obninsk?
Obninsk gets on average 6.9 hours of sunshine per day, roughly 2,519 hours per year over 1940-2025.
What is the biggest single-day snowfall in Obninsk?
The heaviest 24-hour snowfall measured in Obninsk between 1940 and 2025 was 16 October 1971, with 24.5 cm.
Are there tropical nights in Obninsk?
Yes: Obninsk has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Obninsk?
In Obninsk, between 1940 and 2025, the highest apparent temperature reached 38.7 °C on 6 August 2010, and the lowest was -48.8 °C on 17 January 1940.
Compare Obninsk with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Obninsk