Ozerki climate — normals and trends
Ozerki (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.6 °C and it receives 635 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 (17.0 °C on average) and the coldest is January (-7.0 °C). Rainfall peaks in August.
Ozerki averages 149 frost days, 0 hot days (≥ 30 °C) and 137 rainy days per year.
Ozerki has warmed by +2.4 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The number of frost days there went from about 166 to 132 per year over the period.
The hottest day of the period reached 33.4 °C (on 23 June 2021) and the coldest -37.1 °C (on 12 January 1987).
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
OzerkiSt.-Petersburg
- coords
- 60.04°, 30.31°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.6°C
Average daily high
7.3°C
Average daily low
1.7°C
Annual rainfall
635mm
Sunshine / day
7.2h
Mean relative humidity
81%
Average peak wind
20.2km/h
Seasonal range
24.0°C
Frost days (< 0 °C)
149 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
137 d/yr
Annual snowfall
123.6 cm
Average feels-like high
3.9 °C
Average feels-like low
-2.2 °C
Average peak gust
36.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.35 · 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
33.4 °C
23 June 2021
Coldest day
-37.1 °C
12 January 1987
Wettest day
42 mm
11 August 1970
Windiest day
53.6 km/h
21 January 1957
Strongest gust
96.5 km/h
29 September 1975
Hottest feels-like
35.3 °C
7 August 2010
Coldest feels-like
-43.2 °C
12 January 1987
Snowiest day
20.8 cm
23 March 1971
Sunniest day
18.0 h
17 June 1940
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 | 0.6 °C | +5.5 °C | 94 mm | +54 mm |
| Feb | -3.0 °C | +1.6 °C | 19 mm | -14 mm |
| Mar | 4.6 °C | +4.7 °C | 46 mm | +10 mm |
| Apr | 8.3 °C | +1.7 °C | 56 mm | +17 mm |
| May | 13.3 °C | +0.2 °C | 80 mm | +34 mm |
| Jun | 17.6 °C | +0.1 °C | 115 mm | +57 mm |
| Jul | 24.6 °C | +4.2 °C | 45 mm | -22 mm |
| Aug | 19.6 °C | +0.6 °C | 85 mm | +9 mm |
| Sep | 17.5 °C | +3.6 °C | 30 mm | -38 mm |
| Oct | 8.8 °C | +1.5 °C | 40 mm | -24 mm |
| Nov | 4.4 °C | +2.8 °C | 73 mm | +14 mm |
| Dec | 1.4 °C | +3.5 °C | 54 mm | +5 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 Ozerki?
Ozerki has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.6 °C and it receives 635 mm of precipitation per year.
What is the hottest day ever recorded in Ozerki?
The hottest day measured in Ozerki between 1940 and 2025 was 23 June 2021, reaching 33.4 °C.
What is the coldest day in Ozerki?
The coldest day measured in Ozerki between 1940 and 2025 was 12 January 1987, at -37.1 °C.
Does it snow in Ozerki?
Yes. Ozerki gets on average 123.6 cm of snow per year and has around 149 frost days.
Has the climate of Ozerki warmed?
Yes: Ozerki warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ozerki?
The wettest day measured in Ozerki between 1940 and 2025 was 11 August 1970, with 42 mm of rain in 24 hours.
What was the windiest day in Ozerki?
The windiest day measured in Ozerki between 1940 and 2025 was 21 January 1957, with winds reaching 53.6 km/h.
What is the warmest month in Ozerki?
The warmest month in Ozerki is July (17.0 °C on average); the coldest is January (-7.0 °C).
How much does it rain in Ozerki?
Ozerki receives on average 635 mm of precipitation per year, spread over about 137 rainy days.
Is it sunny in Ozerki?
Ozerki 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 Ozerki?
The heaviest 24-hour snowfall measured in Ozerki between 1940 and 2025 was 23 March 1971, with 20.8 cm.
Are there tropical nights in Ozerki?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Ozerki.
What was the most extreme apparent temperature in Ozerki?
In Ozerki, between 1940 and 2025, the highest apparent temperature reached 35.3 °C on 7 August 2010, and the lowest was -43.2 °C on 12 January 1987.
Compare Ozerki with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ozerki