Pervomayskiy climate — normals and trends
Pervomayskiy (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 463 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.
Pervomayskiy averages 184 frost days, 9 hot days (≥ 30 °C) and 97 rainy days per year.
Pervomayskiy 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 174 per year over the period.
The hottest day of the period reached 39.8 °C (on 11 July 2023) and the coldest -42.3 °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
PervomayskiyChelyabinsk Oblast
- coords
- 54.87°, 61.17°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
2.6°C
Average daily high
6.9°C
Average daily low
-1.9°C
Annual rainfall
463mm
Sunshine / day
8.3h
Mean relative humidity
72%
Average peak wind
17.9km/h
Seasonal range
34.5°C
Frost days (< 0 °C)
184 d/yr
Hot days (≥ 30 °C)
9 d/yr
Rainy days (≥ 1 mm)
97 d/yr
Annual snowfall
93.7 cm
Average feels-like high
3.4 °C
Average feels-like low
-5.7 °C
Average peak gust
34.0 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 = 0.46 · 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
39.8 °C
11 July 2023
Coldest day
-42.3 °C
13 January 1940
Wettest day
58 mm
29 July 2006
Windiest day
48.3 km/h
20 October 1973
Strongest gust
94.3 km/h
19 November 1990
Hottest feels-like
39.0 °C
11 July 2023
Coldest feels-like
-47.6 °C
24 January 1969
Snowiest day
22.3 cm
25 April 2014
Sunniest day
16.0 h
26 June 2025
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 | -5.5 °C | +6.5 °C | 25 mm | +7 mm |
| Feb | -5.0 °C | +4.7 °C | 5 mm | -11 mm |
| Mar | 3.6 °C | +5.7 °C | 34 mm | +13 mm |
| Apr | 14.9 °C | +5.2 °C | 50 mm | +20 mm |
| May | 19.8 °C | +1.7 °C | 39 mm | -9 mm |
| Jun | 24.0 °C | +1.3 °C | 116 mm | +57 mm |
| Jul | 22.9 °C | -0.9 °C | 86 mm | +5 mm |
| Aug | 22.0 °C | +0.2 °C | 68 mm | +9 mm |
| Sep | 16.8 °C | +0.8 °C | 41 mm | -3 mm |
| Oct | 9.4 °C | +2.6 °C | 21 mm | -17 mm |
| Nov | 3.0 °C | +5.9 °C | 35 mm | +7 mm |
| Dec | -7.4 °C | +2.0 °C | 34 mm | +12 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 Pervomayskiy?
Pervomayskiy has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 2.6 °C and it receives 463 mm of precipitation per year.
What is the hottest day ever recorded in Pervomayskiy?
The hottest day measured in Pervomayskiy between 1940 and 2025 was 11 July 2023, reaching 39.8 °C.
What is the coldest day in Pervomayskiy?
The coldest day measured in Pervomayskiy between 1940 and 2025 was 13 January 1940, at -42.3 °C.
Does it snow in Pervomayskiy?
Yes. Pervomayskiy gets on average 93.7 cm of snow per year and has around 184 frost days.
Has the climate of Pervomayskiy warmed?
Yes: Pervomayskiy warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Pervomayskiy?
The wettest day measured in Pervomayskiy between 1940 and 2025 was 29 July 2006, with 58 mm of rain in 24 hours.
What was the windiest day in Pervomayskiy?
The windiest day measured in Pervomayskiy between 1940 and 2025 was 20 October 1973, with winds reaching 48.3 km/h.
What is the warmest month in Pervomayskiy?
The warmest month in Pervomayskiy is July (19.1 °C on average); the coldest is January (-15.4 °C).
How much does it rain in Pervomayskiy?
Pervomayskiy receives on average 463 mm of precipitation per year, spread over about 97 rainy days.
Is it sunny in Pervomayskiy?
Pervomayskiy gets on average 8.3 hours of sunshine per day, roughly 3,030 hours per year over 1940-2025.
What is the biggest single-day snowfall in Pervomayskiy?
The heaviest 24-hour snowfall measured in Pervomayskiy between 1940 and 2025 was 25 April 2014, with 22.3 cm.
Are there tropical nights in Pervomayskiy?
Yes: Pervomayskiy has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Pervomayskiy?
In Pervomayskiy, between 1940 and 2025, the highest apparent temperature reached 39.0 °C on 11 July 2023, and the lowest was -47.6 °C on 24 January 1969.
Compare Pervomayskiy with another city
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Nearby cities
The climate around Pervomayskiy