Roza climate — normals and trends
Roza (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 2.6 °C and it receives 473 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 (19.1 °C on average) and the coldest is January (-15.4 °C). Rainfall peaks in July.
Roza averages 183 frost days, 8 hot days (≥ 30 °C) and 99 rainy days per year.
Roza has warmed by +2.8 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The number of frost days there went from about 194 to 172 per year over the period.
The hottest day of the period reached 40.2 °C (on 11 July 2023) and the coldest -42.7 °C (on 13 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
RozaChelyabinsk Oblast
- coords
- 54.92°, 61.46°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
2.6°C
Average daily high
6.8°C
Average daily low
-1.8°C
Annual rainfall
473mm
Sunshine / day
8.1h
Mean relative humidity
72%
Average peak wind
18.0km/h
Seasonal range
34.5°C
Frost days (< 0 °C)
183 d/yr
Hot days (≥ 30 °C)
8 d/yr
Rainy days (≥ 1 mm)
99 d/yr
Annual snowfall
95.7 cm
Average feels-like high
3.3 °C
Average feels-like low
-5.6 °C
Average peak gust
34.4 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
11.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.47 · 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
40.2 °C
11 July 2023
Coldest day
-42.7 °C
13 January 1940
Wettest day
54 mm
29 July 2006
Windiest day
48.1 km/h
30 April 2012
Strongest gust
92.9 km/h
30 April 2012
Hottest feels-like
38.9 °C
11 July 2023
Coldest feels-like
-48.1 °C
13 January 1940
Snowiest day
29.5 cm
3 May 1941
Sunniest day
16.0 h
26 June 2025
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 | -5.5 °C | +6.6 °C | 26 mm | +7 mm |
| Feb | -4.9 °C | +4.9 °C | 5 mm | -12 mm |
| Mar | 3.5 °C | +5.6 °C | 37 mm | +16 mm |
| Apr | 14.6 °C | +5.0 °C | 50 mm | +20 mm |
| May | 19.6 °C | +1.6 °C | 34 mm | -15 mm |
| Jun | 24.0 °C | +1.4 °C | 109 mm | +48 mm |
| Jul | 22.9 °C | -0.9 °C | 89 mm | +7 mm |
| Aug | 21.8 °C | +0.1 °C | 72 mm | +11 mm |
| Sep | 16.6 °C | +0.8 °C | 39 mm | -6 mm |
| Oct | 9.1 °C | +2.4 °C | 20 mm | -18 mm |
| Nov | 2.9 °C | +5.9 °C | 36 mm | +8 mm |
| Dec | -7.5 °C | +2.0 °C | 33 mm | +10 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 Roza?
Roza has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 2.6 °C and it receives 473 mm of precipitation per year.
What is the hottest day ever recorded in Roza?
The hottest day measured in Roza between 1940 and 2025 was 11 July 2023, reaching 40.2 °C.
What is the coldest day in Roza?
The coldest day measured in Roza between 1940 and 2025 was 13 January 1940, at -42.7 °C.
Does it snow in Roza?
Yes. Roza gets on average 95.7 cm of snow per year and has around 183 frost days.
Has the climate of Roza warmed?
Yes: Roza warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Roza?
The wettest day measured in Roza between 1940 and 2025 was 29 July 2006, with 54 mm of rain in 24 hours.
What was the windiest day in Roza?
The windiest day measured in Roza between 1940 and 2025 was 30 April 2012, with winds reaching 48.1 km/h.
What is the warmest month in Roza?
The warmest month in Roza is July (19.1 °C on average); the coldest is January (-15.4 °C).
How much does it rain in Roza?
Roza receives on average 473 mm of precipitation per year, spread over about 99 rainy days.
Is it sunny in Roza?
Roza gets on average 8.1 hours of sunshine per day, roughly 2,957 hours per year over 1940-2025.
What is the biggest single-day snowfall in Roza?
The heaviest 24-hour snowfall measured in Roza between 1940 and 2025 was 3 May 1941, with 29.5 cm.
Are there tropical nights in Roza?
Yes: Roza has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Roza?
In Roza, between 1940 and 2025, the highest apparent temperature reached 38.9 °C on 11 July 2023, and the lowest was -48.1 °C on 13 January 1940.
Compare Roza with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Roza