Ozërsk climate — normals and trends
Ozërsk (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.3 °C and it receives 705 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 (17.7 °C on average) and the coldest is January (-3.6 °C). Rainfall peaks in July.
Ozërsk averages 109 frost days, 2 hot days (≥ 30 °C) and 143 rainy days per year.
Ozërsk has warmed by +2.4 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.
The number of frost days there went from about 130 to 88 per year over the period.
The hottest day of the period reached 34.5 °C (on 31 July 1994) and the coldest -37.2 °C (on 25 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
OzërskKaliningrad Oblast
- coords
- 54.41°, 22.01°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.3°C
Average daily high
10.6°C
Average daily low
3.8°C
Annual rainfall
705mm
Sunshine / day
7.2h
Mean relative humidity
80%
Average peak wind
17.6km/h
Seasonal range
21.3°C
Frost days (< 0 °C)
109 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
143 d/yr
Annual snowfall
76.1 cm
Average feels-like high
7.8 °C
Average feels-like low
0.6 °C
Average peak gust
36.5 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.41 · 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
34.5 °C
31 July 1994
Coldest day
-37.2 °C
25 January 1942
Wettest day
79 mm
9 August 2005
Windiest day
51.1 km/h
22 February 1953
Strongest gust
107.6 km/h
21 January 1956
Hottest feels-like
36.4 °C
17 July 2007
Coldest feels-like
-42.0 °C
25 January 1942
Snowiest day
15.7 cm
30 January 1979
Sunniest day
16.8 h
15 June 2025
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 | 3.9 °C | +5.3 °C | 55 mm | +7 mm |
| Feb | 1.3 °C | +1.5 °C | 15 mm | -26 mm |
| Mar | 9.9 °C | +5.6 °C | 41 mm | -2 mm |
| Apr | 14.8 °C | +3.8 °C | 23 mm | -27 mm |
| May | 14.5 °C | -2.3 °C | 58 mm | -3 mm |
| Jun | 19.7 °C | -0.4 °C | 91 mm | +15 mm |
| Jul | 22.7 °C | +0.9 °C | 116 mm | +26 mm |
| Aug | 21.3 °C | -0.2 °C | 79 mm | +0 mm |
| Sep | 19.5 °C | +2.5 °C | 87 mm | +29 mm |
| Oct | 11.1 °C | +0.1 °C | 99 mm | +45 mm |
| Nov | 5.0 °C | +0.4 °C | 54 mm | +1 mm |
| Dec | 3.9 °C | +3.1 °C | 32 mm | -21 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 Ozërsk?
Ozërsk has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.3 °C and it receives 705 mm of precipitation per year.
What is the hottest day ever recorded in Ozërsk?
The hottest day measured in Ozërsk between 1940 and 2025 was 31 July 1994, reaching 34.5 °C.
What is the coldest day in Ozërsk?
The coldest day measured in Ozërsk between 1940 and 2025 was 25 January 1942, at -37.2 °C.
Does it snow in Ozërsk?
Yes. Ozërsk gets on average 76.1 cm of snow per year and has around 109 frost days.
Has the climate of Ozërsk warmed?
Yes: Ozërsk warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ozërsk?
The wettest day measured in Ozërsk between 1940 and 2025 was 9 August 2005, with 79 mm of rain in 24 hours.
What was the windiest day in Ozërsk?
The windiest day measured in Ozërsk between 1940 and 2025 was 22 February 1953, with winds reaching 51.1 km/h.
What is the warmest month in Ozërsk?
The warmest month in Ozërsk is July (17.7 °C on average); the coldest is January (-3.6 °C).
How much does it rain in Ozërsk?
Ozërsk receives on average 705 mm of precipitation per year, spread over about 143 rainy days.
Is it sunny in Ozërsk?
Ozërsk gets on average 7.2 hours of sunshine per day, roughly 2,628 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ozërsk?
The heaviest 24-hour snowfall measured in Ozërsk between 1940 and 2025 was 30 January 1979, with 15.7 cm.
Are there tropical nights in Ozërsk?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Ozërsk.
What was the most extreme apparent temperature in Ozërsk?
In Ozërsk, between 1940 and 2025, the highest apparent temperature reached 36.4 °C on 17 July 2007, and the lowest was -42.0 °C on 25 January 1942.
Compare Ozërsk with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ozërsk