Syas'stroy climate — normals and trends
Syas'stroy (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.4 °C and it receives 773 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 (-8.1 °C). Rainfall peaks in August.
Syas'stroy averages 151 frost days, 0 hot days (≥ 30 °C) and 150 rainy days per year.
Syas'stroy has warmed by +2.7 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 168 to 134 per year over the period.
The hottest day of the period reached 33.7 °C (on 28 July 2010) and the coldest -38.9 °C (on 12 January 1987).
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
Syas'stroyLeningradskaya Oblast'
- coords
- 60.14°, 32.57°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.4°C
Average daily high
6.2°C
Average daily low
2.7°C
Annual rainfall
773mm
Sunshine / day
7.2h
Mean relative humidity
81%
Average peak wind
25.8km/h
Seasonal range
26.8°C
Frost days (< 0 °C)
151 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
150 d/yr
Annual snowfall
133.6 cm
Average feels-like high
2.4 °C
Average feels-like low
-1.9 °C
Average peak gust
36.6 km/h
Tropical nights (≥ 20 °C)
8 d/yr
Solar radiation
9.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.37 · 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
33.7 °C
28 July 2010
Coldest day
-38.9 °C
12 January 1987
Wettest day
65 mm
17 June 2009
Windiest day
65.6 km/h
2 October 1994
Strongest gust
99.7 km/h
2 October 1994
Hottest feels-like
35.9 °C
8 August 2010
Coldest feels-like
-44.8 °C
12 January 1987
Snowiest day
21.8 cm
23 March 1971
Sunniest day
18.0 h
21 June 2020
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 | -0.1 °C | +6.1 °C | 105 mm | +64 mm |
| Feb | -3.4 °C | +2.5 °C | 30 mm | -1 mm |
| Mar | 2.0 °C | +3.8 °C | 62 mm | +26 mm |
| Apr | 4.2 °C | +0.9 °C | 46 mm | +5 mm |
| May | 11.9 °C | +2.5 °C | 74 mm | +27 mm |
| Jun | 17.5 °C | -0.4 °C | 146 mm | +68 mm |
| Jul | 24.0 °C | +3.2 °C | 70 mm | -23 mm |
| Aug | 19.2 °C | +0.1 °C | 128 mm | +24 mm |
| Sep | 16.6 °C | +3.1 °C | 67 mm | -22 mm |
| Oct | 8.1 °C | +1.1 °C | 50 mm | -39 mm |
| Nov | 4.2 °C | +3.2 °C | 107 mm | +37 mm |
| Dec | 1.0 °C | +4.2 °C | 81 mm | +29 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 Syas'stroy?
Syas'stroy has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.4 °C and it receives 773 mm of precipitation per year.
What is the hottest day ever recorded in Syas'stroy?
The hottest day measured in Syas'stroy between 1940 and 2025 was 28 July 2010, reaching 33.7 °C.
What is the coldest day in Syas'stroy?
The coldest day measured in Syas'stroy between 1940 and 2025 was 12 January 1987, at -38.9 °C.
Does it snow in Syas'stroy?
Yes. Syas'stroy gets on average 133.6 cm of snow per year and has around 151 frost days.
Has the climate of Syas'stroy warmed?
Yes: Syas'stroy warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Syas'stroy?
The wettest day measured in Syas'stroy between 1940 and 2025 was 17 June 2009, with 65 mm of rain in 24 hours.
What was the windiest day in Syas'stroy?
The windiest day measured in Syas'stroy between 1940 and 2025 was 2 October 1994, with winds reaching 65.6 km/h.
What is the warmest month in Syas'stroy?
The warmest month in Syas'stroy is July (18.7 °C on average); the coldest is January (-8.1 °C).
How much does it rain in Syas'stroy?
Syas'stroy receives on average 773 mm of precipitation per year, spread over about 150 rainy days.
Is it sunny in Syas'stroy?
Syas'stroy gets on average 7.2 hours of sunshine per day, roughly 2,628 hours per year over 1940-2025.
What is the biggest single-day snowfall in Syas'stroy?
The heaviest 24-hour snowfall measured in Syas'stroy between 1940 and 2025 was 23 March 1971, with 21.8 cm.
Are there tropical nights in Syas'stroy?
Yes: Syas'stroy has on average 8 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Syas'stroy?
In Syas'stroy, between 1940 and 2025, the highest apparent temperature reached 35.9 °C on 8 August 2010, and the lowest was -44.8 °C on 12 January 1987.
Compare Syas'stroy with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Syas'stroy