Syumsi climate — normals and trends
Syumsi (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 3.1 °C and it receives 638 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 (18.8 °C on average) and the coldest is January (-13.0 °C). Rainfall peaks in July.
Syumsi averages 178 frost days, 7 hot days (≥ 30 °C) and 133 rainy days per year.
Syumsi has warmed by +2.8 °C between 1940 and 2025, or +0.33 °C per decade. This trend is statistically significant.
The number of frost days there went from about 190 to 166 per year over the period.
The hottest day of the period reached 38.6 °C (on 31 July 2010) and the coldest -47.3 °C (on 31 December 1978).
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
SyumsiUdmurtiya Republic
- coords
- 57.11°, 51.61°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
3.1°C
Average daily high
7.0°C
Average daily low
-0.8°C
Annual rainfall
638mm
Sunshine / day
7.0h
Mean relative humidity
76%
Average peak wind
15.4km/h
Seasonal range
31.8°C
Frost days (< 0 °C)
178 d/yr
Hot days (≥ 30 °C)
7 d/yr
Rainy days (≥ 1 mm)
133 d/yr
Annual snowfall
158.7 cm
Average feels-like high
3.7 °C
Average feels-like low
-4.4 °C
Average peak gust
34.6 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.46 · 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
31 July 2010
Coldest day
-47.3 °C
31 December 1978
Wettest day
53 mm
11 June 1984
Windiest day
45.9 km/h
20 October 1973
Strongest gust
96.8 km/h
20 October 1973
Hottest feels-like
39.2 °C
10 July 1954
Coldest feels-like
-52.5 °C
31 December 1978
Snowiest day
17.2 cm
10 April 1997
Sunniest day
17.0 h
6 July 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 | -2.8 °C | +7.4 °C | 67 mm | +28 mm |
| Feb | -5.0 °C | +3.3 °C | 12 mm | -19 mm |
| Mar | 4.1 °C | +5.1 °C | 33 mm | -5 mm |
| Apr | 12.6 °C | +4.0 °C | 39 mm | -3 mm |
| May | 18.6 °C | +1.5 °C | 84 mm | +28 mm |
| Jun | 22.1 °C | +0.3 °C | 124 mm | +55 mm |
| Jul | 23.7 °C | -0.1 °C | 32 mm | -46 mm |
| Aug | 22.4 °C | +1.0 °C | 102 mm | +36 mm |
| Sep | 16.4 °C | +1.7 °C | 27 mm | -32 mm |
| Oct | 9.2 °C | +3.5 °C | 47 mm | -14 mm |
| Nov | 3.3 °C | +5.7 °C | 91 mm | +41 mm |
| Dec | -5.6 °C | +2.1 °C | 61 mm | +15 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 Syumsi?
Syumsi has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 3.1 °C and it receives 638 mm of precipitation per year.
What is the hottest day ever recorded in Syumsi?
The hottest day measured in Syumsi between 1940 and 2025 was 31 July 2010, reaching 38.6 °C.
What is the coldest day in Syumsi?
The coldest day measured in Syumsi between 1940 and 2025 was 31 December 1978, at -47.3 °C.
Does it snow in Syumsi?
Yes. Syumsi gets on average 158.7 cm of snow per year and has around 178 frost days.
Has the climate of Syumsi warmed?
Yes: Syumsi warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Syumsi?
The wettest day measured in Syumsi between 1940 and 2025 was 11 June 1984, with 53 mm of rain in 24 hours.
What was the windiest day in Syumsi?
The windiest day measured in Syumsi between 1940 and 2025 was 20 October 1973, with winds reaching 45.9 km/h.
What is the warmest month in Syumsi?
The warmest month in Syumsi is July (18.8 °C on average); the coldest is January (-13.0 °C).
How much does it rain in Syumsi?
Syumsi receives on average 638 mm of precipitation per year, spread over about 133 rainy days.
Is it sunny in Syumsi?
Syumsi gets on average 7.0 hours of sunshine per day, roughly 2,555 hours per year over 1940-2025.
What is the biggest single-day snowfall in Syumsi?
The heaviest 24-hour snowfall measured in Syumsi between 1940 and 2025 was 10 April 1997, with 17.2 cm.
Are there tropical nights in Syumsi?
Yes: Syumsi has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Syumsi?
In Syumsi, between 1940 and 2025, the highest apparent temperature reached 39.2 °C on 10 July 1954, and the lowest was -52.5 °C on 31 December 1978.
Compare Syumsi with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Syumsi