Ruza climate — normals and trends
Ruza (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.7 °C and it receives 657 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 (18.1 °C on average) and the coldest is January (-8.9 °C). Rainfall peaks in July.
Ruza averages 159 frost days, 2 hot days (≥ 30 °C) and 134 rainy days per year.
Ruza 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 144 per year over the period.
The hottest day of the period reached 37.1 °C (on 7 August 2010) and the coldest -41.7 °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
RuzaMoscow Oblast
- coords
- 55.70°, 36.19°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.7°C
Average daily high
8.2°C
Average daily low
1.0°C
Annual rainfall
657mm
Sunshine / day
6.7h
Mean relative humidity
78%
Average peak wind
17.2km/h
Seasonal range
27.0°C
Frost days (< 0 °C)
159 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
134 d/yr
Annual snowfall
131.7 cm
Average feels-like high
5.1 °C
Average feels-like low
-2.4 °C
Average peak gust
35.5 km/h
Tropical nights (≥ 20 °C)
0 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 = 0.52 · 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
37.1 °C
7 August 2010
Coldest day
-41.7 °C
17 January 1940
Wettest day
69 mm
24 August 1941
Windiest day
43.4 km/h
30 November 1974
Strongest gust
95.8 km/h
13 March 2020
Hottest feels-like
37.7 °C
7 August 2010
Coldest feels-like
-47.4 °C
17 January 1940
Snowiest day
18.7 cm
14 December 1981
Sunniest day
17.0 h
22 June 1947
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 | 1.1 °C | +7.5 °C | 40 mm | +4 mm |
| Feb | -2.8 °C | +2.1 °C | 7 mm | -27 mm |
| Mar | 7.4 °C | +6.7 °C | 34 mm | -3 mm |
| Apr | 12.5 °C | +3.1 °C | 63 mm | +22 mm |
| May | 17.0 °C | +0.2 °C | 70 mm | +5 mm |
| Jun | 19.6 °C | -1.0 °C | 120 mm | +44 mm |
| Jul | 25.5 °C | +3.1 °C | 100 mm | +15 mm |
| Aug | 20.2 °C | -0.8 °C | 113 mm | +40 mm |
| Sep | 17.4 °C | +2.4 °C | 13 mm | -48 mm |
| Oct | 8.8 °C | +1.2 °C | 77 mm | +20 mm |
| Nov | 4.5 °C | +4.1 °C | 77 mm | +29 mm |
| Dec | -0.5 °C | +3.4 °C | 44 mm | -0 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 Ruza?
Ruza has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.7 °C and it receives 657 mm of precipitation per year.
What is the hottest day ever recorded in Ruza?
The hottest day measured in Ruza between 1940 and 2025 was 7 August 2010, reaching 37.1 °C.
What is the coldest day in Ruza?
The coldest day measured in Ruza between 1940 and 2025 was 17 January 1940, at -41.7 °C.
Does it snow in Ruza?
Yes. Ruza gets on average 131.7 cm of snow per year and has around 159 frost days.
Has the climate of Ruza warmed?
Yes: Ruza warmed by +3.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ruza?
The wettest day measured in Ruza between 1940 and 2025 was 24 August 1941, with 69 mm of rain in 24 hours.
What was the windiest day in Ruza?
The windiest day measured in Ruza between 1940 and 2025 was 30 November 1974, with winds reaching 43.4 km/h.
What is the warmest month in Ruza?
The warmest month in Ruza is July (18.1 °C on average); the coldest is January (-8.9 °C).
How much does it rain in Ruza?
Ruza receives on average 657 mm of precipitation per year, spread over about 134 rainy days.
Is it sunny in Ruza?
Ruza gets on average 6.7 hours of sunshine per day, roughly 2,446 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ruza?
The heaviest 24-hour snowfall measured in Ruza between 1940 and 2025 was 14 December 1981, with 18.7 cm.
Are there tropical nights in Ruza?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Ruza.
What was the most extreme apparent temperature in Ruza?
In Ruza, between 1940 and 2025, the highest apparent temperature reached 37.7 °C on 7 August 2010, and the lowest was -47.4 °C on 17 January 1940.
Compare Ruza with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ruza