Stromyn' climate — normals and trends
Stromyn' (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.8 °C and it receives 645 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 (18.7 °C on average) and the coldest is January (-9.4 °C). Rainfall peaks in July.
Stromyn' averages 158 frost days, 4 hot days (≥ 30 °C) and 131 rainy days per year.
Stromyn' has warmed by +3.1 °C between 1940 and 2025, or +0.36 °C per decade. This trend is statistically significant.
The number of frost days there went from about 174 to 142 per year over the period.
The hottest day of the period reached 38.6 °C (on 28 July 2010) and the coldest -43.3 °C (on 17 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
Stromyn'Moscow Oblast
- coords
- 56.04°, 38.48°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.8°C
Average daily high
8.4°C
Average daily low
1.1°C
Annual rainfall
645mm
Sunshine / day
6.8h
Mean relative humidity
77%
Average peak wind
16.9km/h
Seasonal range
28.1°C
Frost days (< 0 °C)
158 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
131 d/yr
Annual snowfall
134.2 cm
Average feels-like high
5.2 °C
Average feels-like low
-2.4 °C
Average peak gust
35.2 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
9.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.1 °C
since 1940
+0.4 °C per decade · r² = 0.50 · 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
38.6 °C
28 July 2010
Coldest day
-43.3 °C
17 January 1940
Wettest day
56 mm
22 May 1956
Windiest day
43.1 km/h
24 September 1943
Strongest gust
93.2 km/h
13 March 2020
Hottest feels-like
39.2 °C
6 August 2010
Coldest feels-like
-49.0 °C
17 January 1940
Snowiest day
18.3 cm
16 October 1971
Sunniest day
17.0 h
23 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 | 0.9 °C | +7.7 °C | 41 mm | +3 mm |
| Feb | -2.4 °C | +2.9 °C | 7 mm | -27 mm |
| Mar | 7.3 °C | +6.6 °C | 29 mm | -7 mm |
| Apr | 12.4 °C | +2.7 °C | 62 mm | +20 mm |
| May | 17.7 °C | +0.4 °C | 60 mm | -1 mm |
| Jun | 20.4 °C | -0.8 °C | 104 mm | +31 mm |
| Jul | 26.2 °C | +3.1 °C | 83 mm | +3 mm |
| Aug | 20.7 °C | -0.8 °C | 91 mm | +21 mm |
| Sep | 17.9 °C | +2.6 °C | 12 mm | -46 mm |
| Oct | 9.2 °C | +1.6 °C | 77 mm | +18 mm |
| Nov | 4.7 °C | +4.5 °C | 66 mm | +17 mm |
| Dec | -0.5 °C | +3.7 °C | 39 mm | -7 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 Stromyn'?
Stromyn' has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.8 °C and it receives 645 mm of precipitation per year.
What is the hottest day ever recorded in Stromyn'?
The hottest day measured in Stromyn' between 1940 and 2025 was 28 July 2010, reaching 38.6 °C.
What is the coldest day in Stromyn'?
The coldest day measured in Stromyn' between 1940 and 2025 was 17 January 1940, at -43.3 °C.
Does it snow in Stromyn'?
Yes. Stromyn' gets on average 134.2 cm of snow per year and has around 158 frost days.
Has the climate of Stromyn' warmed?
Yes: Stromyn' warmed by +3.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Stromyn'?
The wettest day measured in Stromyn' between 1940 and 2025 was 22 May 1956, with 56 mm of rain in 24 hours.
What was the windiest day in Stromyn'?
The windiest day measured in Stromyn' between 1940 and 2025 was 24 September 1943, with winds reaching 43.1 km/h.
What is the warmest month in Stromyn'?
The warmest month in Stromyn' is July (18.7 °C on average); the coldest is January (-9.4 °C).
How much does it rain in Stromyn'?
Stromyn' receives on average 645 mm of precipitation per year, spread over about 131 rainy days.
Is it sunny in Stromyn'?
Stromyn' gets on average 6.8 hours of sunshine per day, roughly 2,482 hours per year over 1940-2025.
What is the biggest single-day snowfall in Stromyn'?
The heaviest 24-hour snowfall measured in Stromyn' between 1940 and 2025 was 16 October 1971, with 18.3 cm.
Are there tropical nights in Stromyn'?
Yes: Stromyn' has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Stromyn'?
In Stromyn', between 1940 and 2025, the highest apparent temperature reached 39.2 °C on 6 August 2010, and the lowest was -49.0 °C on 17 January 1940.
Compare Stromyn' with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Stromyn'