Orsk climate — normals and trends
Orsk (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.1 °C and it receives 361 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 (21.7 °C on average) and the coldest is January (-14.6 °C). Rainfall peaks in July.
Orsk averages 177 frost days, 26 hot days (≥ 30 °C) and 81 rainy days per year.
Orsk has warmed by +2.7 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The number of frost days there went from about 186 to 168 per year over the period.
The hottest day of the period reached 40.5 °C (on 11 July 1984) and the coldest -42.4 °C (on 11 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
OrskOrenburg Oblast
- coords
- 51.23°, 58.49°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.1°C
Average daily high
8.9°C
Average daily low
-0.8°C
Annual rainfall
361mm
Sunshine / day
8.5h
Mean relative humidity
68%
Average peak wind
18.9km/h
Seasonal range
36.3°C
Frost days (< 0 °C)
177 d/yr
Hot days (≥ 30 °C)
26 d/yr
Rainy days (≥ 1 mm)
81 d/yr
Annual snowfall
95.0 cm
Average feels-like high
5.1 °C
Average feels-like low
-4.7 °C
Average peak gust
34.9 km/h
Tropical nights (≥ 20 °C)
5 d/yr
Solar radiation
12.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.40 · 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
40.5 °C
11 July 1984
Coldest day
-42.4 °C
11 January 1940
Wettest day
44 mm
7 July 1960
Windiest day
56.5 km/h
29 October 1951
Strongest gust
101.2 km/h
25 April 2014
Hottest feels-like
39.7 °C
11 July 2020
Coldest feels-like
-47.6 °C
11 January 1940
Snowiest day
16.3 cm
18 April 1971
Sunniest day
16.0 h
25 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -4.9 °C | +6.3 °C | 17 mm | -7 mm |
| Feb | -5.8 °C | +4.0 °C | 30 mm | +7 mm |
| Mar | 3.8 °C | +6.4 °C | 22 mm | -6 mm |
| Apr | 17.8 °C | +6.5 °C | 33 mm | +2 mm |
| May | 22.1 °C | +1.5 °C | 39 mm | +5 mm |
| Jun | 26.2 °C | +0.5 °C | 33 mm | +1 mm |
| Jul | 27.9 °C | +0.5 °C | 37 mm | -5 mm |
| Aug | 27.2 °C | +1.3 °C | 34 mm | +5 mm |
| Sep | 21.1 °C | +1.8 °C | 13 mm | -12 mm |
| Oct | 12.7 °C | +3.5 °C | 14 mm | -21 mm |
| Nov | 5.2 °C | +6.3 °C | 19 mm | -11 mm |
| Dec | -5.9 °C | +2.3 °C | 31 mm | +4 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 Orsk?
Orsk has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.1 °C and it receives 361 mm of precipitation per year.
What is the hottest day ever recorded in Orsk?
The hottest day measured in Orsk between 1940 and 2025 was 11 July 1984, reaching 40.5 °C.
What is the coldest day in Orsk?
The coldest day measured in Orsk between 1940 and 2025 was 11 January 1940, at -42.4 °C.
Does it snow in Orsk?
Yes. Orsk gets on average 95.0 cm of snow per year and has around 177 frost days.
Has the climate of Orsk warmed?
Yes: Orsk warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Orsk?
The wettest day measured in Orsk between 1940 and 2025 was 7 July 1960, with 44 mm of rain in 24 hours.
What was the windiest day in Orsk?
The windiest day measured in Orsk between 1940 and 2025 was 29 October 1951, with winds reaching 56.5 km/h.
What is the warmest month in Orsk?
The warmest month in Orsk is July (21.7 °C on average); the coldest is January (-14.6 °C).
How much does it rain in Orsk?
Orsk receives on average 361 mm of precipitation per year, spread over about 81 rainy days.
Is it sunny in Orsk?
Orsk gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.
What is the biggest single-day snowfall in Orsk?
The heaviest 24-hour snowfall measured in Orsk between 1940 and 2025 was 18 April 1971, with 16.3 cm.
Are there tropical nights in Orsk?
Yes: Orsk has on average 5 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Orsk?
In Orsk, between 1940 and 2025, the highest apparent temperature reached 39.7 °C on 11 July 2020, and the lowest was -47.6 °C on 11 January 1940.
Compare Orsk with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Orsk