Polessk climate — normals and trends
Polessk (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.8 °C and it receives 727 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 (17.9 °C on average) and the coldest is January (-2.1 °C). Rainfall peaks in July.
Polessk averages 85 frost days, 0 hot days (≥ 30 °C) and 145 rainy days per year.
Polessk has warmed by +2.5 °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 106 to 64 per year over the period.
The hottest day of the period reached 33.5 °C (on 8 August 2015) and the coldest -31.1 °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
PolesskKaliningrad Oblast
- coords
- 54.86°, 21.10°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.8°C
Average daily high
10.5°C
Average daily low
5.2°C
Annual rainfall
727mm
Sunshine / day
7.7h
Mean relative humidity
80%
Average peak wind
20.2km/h
Seasonal range
20.0°C
Frost days (< 0 °C)
85 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
145 d/yr
Annual snowfall
66.5 cm
Average feels-like high
7.6 °C
Average feels-like low
1.7 °C
Average peak gust
36.3 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.44 · 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
33.5 °C
8 August 2015
Coldest day
-31.1 °C
25 January 1942
Wettest day
60 mm
9 August 2005
Windiest day
58.3 km/h
22 February 1953
Strongest gust
117.0 km/h
4 December 1999
Hottest feels-like
35.2 °C
30 July 1994
Coldest feels-like
-36.4 °C
25 January 1942
Snowiest day
16.8 cm
25 April 1955
Sunniest day
16.7 h
23 June 2019
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 | 4.0 °C | +4.3 °C | 80 mm | +30 mm |
| Feb | 1.3 °C | +0.8 °C | 15 mm | -27 mm |
| Mar | 8.8 °C | +4.6 °C | 23 mm | -20 mm |
| Apr | 13.0 °C | +3.1 °C | 26 mm | -20 mm |
| May | 13.7 °C | -1.3 °C | 59 mm | +5 mm |
| Jun | 18.9 °C | +0.2 °C | 95 mm | +26 mm |
| Jul | 22.1 °C | +1.1 °C | 110 mm | +23 mm |
| Aug | 20.9 °C | -0.1 °C | 101 mm | +19 mm |
| Sep | 19.3 °C | +2.3 °C | 88 mm | +19 mm |
| Oct | 11.5 °C | +0.2 °C | 101 mm | +37 mm |
| Nov | 5.6 °C | +0.1 °C | 46 mm | -17 mm |
| Dec | 4.6 °C | +2.7 °C | 38 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 Polessk?
Polessk has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.8 °C and it receives 727 mm of precipitation per year.
What is the hottest day ever recorded in Polessk?
The hottest day measured in Polessk between 1940 and 2025 was 8 August 2015, reaching 33.5 °C.
What is the coldest day in Polessk?
The coldest day measured in Polessk between 1940 and 2025 was 25 January 1942, at -31.1 °C.
Does it snow in Polessk?
Yes. Polessk gets on average 66.5 cm of snow per year and has around 85 frost days.
Has the climate of Polessk warmed?
Yes: Polessk warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Polessk?
The wettest day measured in Polessk between 1940 and 2025 was 9 August 2005, with 60 mm of rain in 24 hours.
What was the windiest day in Polessk?
The windiest day measured in Polessk between 1940 and 2025 was 22 February 1953, with winds reaching 58.3 km/h.
What is the warmest month in Polessk?
The warmest month in Polessk is July (17.9 °C on average); the coldest is January (-2.1 °C).
How much does it rain in Polessk?
Polessk receives on average 727 mm of precipitation per year, spread over about 145 rainy days.
Is it sunny in Polessk?
Polessk gets on average 7.7 hours of sunshine per day, roughly 2,811 hours per year over 1940-2025.
What is the biggest single-day snowfall in Polessk?
The heaviest 24-hour snowfall measured in Polessk between 1940 and 2025 was 25 April 1955, with 16.8 cm.
Are there tropical nights in Polessk?
Yes: Polessk has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Polessk?
In Polessk, between 1940 and 2025, the highest apparent temperature reached 35.2 °C on 30 July 1994, and the lowest was -36.4 °C on 25 January 1942.
Compare Polessk with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Polessk