Isil'kul' climate — normals and trends
Isil'kul' (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 1.7 °C and it receives 432 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 (19.3 °C on average) and the coldest is January (-17.1 °C). Rainfall peaks in July.
Isil'kul' averages 188 frost days, 8 hot days (≥ 30 °C) and 99 rainy days per year.
Isil'kul' has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The number of frost days there went from about 196 to 180 per year over the period.
The hottest day of the period reached 38.5 °C (on 12 July 2023) and the coldest -46.3 °C (on 8 December 1968).
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
Isil'kul'Omsk Oblast
- coords
- 54.91°, 71.27°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
1.7°C
Average daily high
6.0°C
Average daily low
-2.7°C
Annual rainfall
432mm
Sunshine / day
7.7h
Mean relative humidity
72%
Average peak wind
18.6km/h
Seasonal range
36.4°C
Frost days (< 0 °C)
188 d/yr
Hot days (≥ 30 °C)
8 d/yr
Rainy days (≥ 1 mm)
99 d/yr
Annual snowfall
89.7 cm
Average feels-like high
2.4 °C
Average feels-like low
-6.8 °C
Average peak gust
35.9 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
11.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.32 · 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
38.5 °C
12 July 2023
Coldest day
-46.3 °C
8 December 1968
Wettest day
70 mm
29 July 1975
Windiest day
49.1 km/h
20 June 2023
Strongest gust
105.8 km/h
26 April 2014
Hottest feels-like
40.0 °C
18 July 1953
Coldest feels-like
-51.4 °C
8 December 1968
Snowiest day
16.7 cm
18 November 2023
Sunniest day
16.5 h
20 June 1942
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 | -7.4 °C | +6.2 °C | 24 mm | +7 mm |
| Feb | -6.0 °C | +5.6 °C | 18 mm | +4 mm |
| Mar | 0.5 °C | +3.9 °C | 26 mm | +6 mm |
| Apr | 14.8 °C | +6.1 °C | 32 mm | +3 mm |
| May | 18.9 °C | +1.3 °C | 91 mm | +50 mm |
| Jun | 24.9 °C | +2.3 °C | 60 mm | +5 mm |
| Jul | 23.4 °C | -0.7 °C | 93 mm | +24 mm |
| Aug | 21.6 °C | +0.1 °C | 76 mm | +15 mm |
| Sep | 17.0 °C | +1.4 °C | 26 mm | -15 mm |
| Oct | 6.8 °C | +0.6 °C | 13 mm | -22 mm |
| Nov | 1.0 °C | +5.4 °C | 53 mm | +24 mm |
| Dec | -7.1 °C | +3.8 °C | 26 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 Isil'kul'?
Isil'kul' has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 1.7 °C and it receives 432 mm of precipitation per year.
What is the hottest day ever recorded in Isil'kul'?
The hottest day measured in Isil'kul' between 1940 and 2025 was 12 July 2023, reaching 38.5 °C.
What is the coldest day in Isil'kul'?
The coldest day measured in Isil'kul' between 1940 and 2025 was 8 December 1968, at -46.3 °C.
Does it snow in Isil'kul'?
Yes. Isil'kul' gets on average 89.7 cm of snow per year and has around 188 frost days.
Has the climate of Isil'kul' warmed?
Yes: Isil'kul' warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Isil'kul'?
The wettest day measured in Isil'kul' between 1940 and 2025 was 29 July 1975, with 70 mm of rain in 24 hours.
What was the windiest day in Isil'kul'?
The windiest day measured in Isil'kul' between 1940 and 2025 was 20 June 2023, with winds reaching 49.1 km/h.
What is the warmest month in Isil'kul'?
The warmest month in Isil'kul' is July (19.3 °C on average); the coldest is January (-17.1 °C).
How much does it rain in Isil'kul'?
Isil'kul' receives on average 432 mm of precipitation per year, spread over about 99 rainy days.
Is it sunny in Isil'kul'?
Isil'kul' 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 Isil'kul'?
The heaviest 24-hour snowfall measured in Isil'kul' between 1940 and 2025 was 18 November 2023, with 16.7 cm.
Are there tropical nights in Isil'kul'?
Yes: Isil'kul' has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Isil'kul'?
In Isil'kul', between 1940 and 2025, the highest apparent temperature reached 40.0 °C on 18 July 1953, and the lowest was -51.4 °C on 8 December 1968.
Compare Isil'kul' with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Isil'kul'