Demyansk climate — normals and trends
Demyansk (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 5.1 °C and it receives 735 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 (17.9 °C on average) and the coldest is January (-7.9 °C). Rainfall peaks in July.
Demyansk averages 149 frost days, 2 hot days (≥ 30 °C) and 149 rainy days per year.
Demyansk has warmed by +2.9 °C between 1940 and 2025, or +0.34 °C per decade. This trend is statistically significant.
The number of frost days there went from about 166 to 132 per year over the period.
The hottest day of the period reached 36.9 °C (on 4 August 2010) and the coldest -42.2 °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
DemyanskNovgorod Oblast
- coords
- 57.64°, 32.47°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
5.1°C
Average daily high
8.6°C
Average daily low
1.4°C
Annual rainfall
735mm
Sunshine / day
6.6h
Mean relative humidity
78%
Average peak wind
17.1km/h
Seasonal range
25.8°C
Frost days (< 0 °C)
149 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
149 d/yr
Annual snowfall
134.6 cm
Average feels-like high
5.5 °C
Average feels-like low
-2.1 °C
Average peak gust
35.9 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
9.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.3 °C per decade · r² = 0.47 · 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
36.9 °C
4 August 2010
Coldest day
-42.2 °C
31 December 1978
Wettest day
58 mm
7 October 2003
Windiest day
44.8 km/h
18 October 1967
Strongest gust
105.5 km/h
7 August 1987
Hottest feels-like
38.4 °C
7 August 2010
Coldest feels-like
-47.1 °C
31 December 1978
Snowiest day
16.9 cm
30 November 2012
Sunniest day
17.3 h
22 June 2024
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 | 1.9 °C | +7.3 °C | 86 mm | +40 mm |
| Feb | -2.6 °C | +1.5 °C | 23 mm | -14 mm |
| Mar | 7.3 °C | +5.8 °C | 61 mm | +20 mm |
| Apr | 11.7 °C | +2.1 °C | 62 mm | +16 mm |
| May | 16.2 °C | -0.3 °C | 89 mm | +27 mm |
| Jun | 19.1 °C | -1.3 °C | 159 mm | +79 mm |
| Jul | 25.8 °C | +3.5 °C | 105 mm | +19 mm |
| Aug | 20.2 °C | -0.5 °C | 101 mm | +18 mm |
| Sep | 18.5 °C | +3.4 °C | 29 mm | -39 mm |
| Oct | 9.1 °C | +1.1 °C | 47 mm | -24 mm |
| Nov | 3.9 °C | +2.7 °C | 52 mm | -9 mm |
| Dec | 1.0 °C | +3.8 °C | 75 mm | +22 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 Demyansk?
Demyansk has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 5.1 °C and it receives 735 mm of precipitation per year.
What is the hottest day ever recorded in Demyansk?
The hottest day measured in Demyansk between 1940 and 2025 was 4 August 2010, reaching 36.9 °C.
What is the coldest day in Demyansk?
The coldest day measured in Demyansk between 1940 and 2025 was 31 December 1978, at -42.2 °C.
Does it snow in Demyansk?
Yes. Demyansk gets on average 134.6 cm of snow per year and has around 149 frost days.
Has the climate of Demyansk warmed?
Yes: Demyansk warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Demyansk?
The wettest day measured in Demyansk between 1940 and 2025 was 7 October 2003, with 58 mm of rain in 24 hours.
What was the windiest day in Demyansk?
The windiest day measured in Demyansk between 1940 and 2025 was 18 October 1967, with winds reaching 44.8 km/h.
What is the warmest month in Demyansk?
The warmest month in Demyansk is July (17.9 °C on average); the coldest is January (-7.9 °C).
How much does it rain in Demyansk?
Demyansk receives on average 735 mm of precipitation per year, spread over about 149 rainy days.
Is it sunny in Demyansk?
Demyansk gets on average 6.6 hours of sunshine per day, roughly 2,409 hours per year over 1940-2025.
What is the biggest single-day snowfall in Demyansk?
The heaviest 24-hour snowfall measured in Demyansk between 1940 and 2025 was 30 November 2012, with 16.9 cm.
Are there tropical nights in Demyansk?
Yes: Demyansk has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Demyansk?
In Demyansk, between 1940 and 2025, the highest apparent temperature reached 38.4 °C on 7 August 2010, and the lowest was -47.1 °C on 31 December 1978.
Compare Demyansk with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Demyansk