Poronaysk climate — normals and trends
Poronaysk (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 0.3 °C and it receives 852 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 August (15.8 °C on average) and the coldest is January (-16.5 °C). Rainfall peaks in September.
Poronaysk averages 198 frost days, 0 hot days (≥ 30 °C) and 116 rainy days per year.
Poronaysk has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The number of frost days there went from about 203 to 193 per year over the period.
The hottest day of the period reached 31.1 °C (on 29 July 2021) and the coldest -33.7 °C (on 7 January 1994).
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
PoronayskSakhalin Oblast
- coords
- 49.22°, 143.09°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
0.3°C
Average daily high
4.0°C
Average daily low
-3.1°C
Annual rainfall
852mm
Sunshine / day
8.2h
Mean relative humidity
78%
Average peak wind
18.7km/h
Seasonal range
32.3°C
Frost days (< 0 °C)
198 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
116 d/yr
Annual snowfall
231.2 cm
Average feels-like high
0.6 °C
Average feels-like low
-7.0 °C
Average peak gust
34.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
12.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.22 · 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
31.1 °C
29 July 2021
Coldest day
-33.7 °C
7 January 1994
Wettest day
102 mm
12 August 1985
Windiest day
62.2 km/h
16 February 2021
Strongest gust
110.9 km/h
11 October 1968
Hottest feels-like
34.9 °C
9 August 1999
Coldest feels-like
-39.7 °C
8 January 1980
Snowiest day
36.8 cm
24 December 2010
Sunniest day
15.1 h
25 June 1963
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 | -8.4 °C | +4.3 °C | 70 mm | +35 mm |
| Feb | -6.1 °C | +4.2 °C | 53 mm | +21 mm |
| Mar | -4.1 °C | +0.2 °C | 41 mm | -13 mm |
| Apr | 3.6 °C | +0.8 °C | 79 mm | +8 mm |
| May | 10.9 °C | +2.3 °C | 61 mm | -18 mm |
| Jun | 17.1 °C | +3.6 °C | 85 mm | +22 mm |
| Jul | 22.4 °C | +5.0 °C | 42 mm | -35 mm |
| Aug | 21.6 °C | +2.7 °C | 130 mm | +25 mm |
| Sep | 18.6 °C | +2.9 °C | 59 mm | -57 mm |
| Oct | 7.3 °C | -1.4 °C | 87 mm | -12 mm |
| Nov | -0.1 °C | +0.9 °C | 72 mm | +5 mm |
| Dec | -10.2 °C | -0.5 °C | 45 mm | -8 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 Poronaysk?
Poronaysk has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 0.3 °C and it receives 852 mm of precipitation per year.
What is the hottest day ever recorded in Poronaysk?
The hottest day measured in Poronaysk between 1940 and 2025 was 29 July 2021, reaching 31.1 °C.
What is the coldest day in Poronaysk?
The coldest day measured in Poronaysk between 1940 and 2025 was 7 January 1994, at -33.7 °C.
Does it snow in Poronaysk?
Yes. Poronaysk gets on average 231.2 cm of snow per year and has around 198 frost days.
Has the climate of Poronaysk warmed?
Yes: Poronaysk warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Poronaysk?
The wettest day measured in Poronaysk between 1940 and 2025 was 12 August 1985, with 102 mm of rain in 24 hours.
What was the windiest day in Poronaysk?
The windiest day measured in Poronaysk between 1940 and 2025 was 16 February 2021, with winds reaching 62.2 km/h.
What is the warmest month in Poronaysk?
The warmest month in Poronaysk is August (15.8 °C on average); the coldest is January (-16.5 °C).
How much does it rain in Poronaysk?
Poronaysk receives on average 852 mm of precipitation per year, spread over about 116 rainy days.
Is it sunny in Poronaysk?
Poronaysk gets on average 8.2 hours of sunshine per day, roughly 2,993 hours per year over 1940-2025.
What is the biggest single-day snowfall in Poronaysk?
The heaviest 24-hour snowfall measured in Poronaysk between 1940 and 2025 was 24 December 2010, with 36.8 cm.
Are there tropical nights in Poronaysk?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Poronaysk.
What was the most extreme apparent temperature in Poronaysk?
In Poronaysk, between 1940 and 2025, the highest apparent temperature reached 34.9 °C on 9 August 1999, and the lowest was -39.7 °C on 8 January 1980.
Compare Poronaysk with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Poronaysk