Pervomayskoye climate — normals and trends
Pervomayskoye (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 1.7 °C and it receives 546 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 (19.7 °C on average) and the coldest is January (-16.9 °C). Rainfall peaks in July.
Pervomayskoye averages 191 frost days, 7 hot days (≥ 30 °C) and 121 rainy days per year.
Pervomayskoye has warmed by +2.2 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 199 to 183 per year over the period.
The hottest day of the period reached 38.5 °C (on 12 July 2014) and the coldest -48.2 °C (on 7 January 2001).
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
PervomayskoyeAltai Krai
- coords
- 53.72°, 84.02°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
1.7°C
Average daily high
6.4°C
Average daily low
-2.9°C
Annual rainfall
546mm
Sunshine / day
8.3h
Mean relative humidity
72%
Average peak wind
17.7km/h
Seasonal range
36.6°C
Frost days (< 0 °C)
191 d/yr
Hot days (≥ 30 °C)
7 d/yr
Rainy days (≥ 1 mm)
121 d/yr
Annual snowfall
145.9 cm
Average feels-like high
2.9 °C
Average feels-like low
-6.8 °C
Average peak gust
34.3 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
12.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.28 · 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
38.5 °C
12 July 2014
Coldest day
-48.2 °C
7 January 2001
Wettest day
37 mm
27 August 2014
Windiest day
54.3 km/h
17 February 2004
Strongest gust
110.2 km/h
22 April 1985
Hottest feels-like
40.3 °C
22 July 1953
Coldest feels-like
-53.1 °C
7 January 2001
Snowiest day
16.5 cm
30 November 1984
Sunniest day
16.7 h
20 June 1949
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 | -6.3 °C | +6.8 °C | 48 mm | +18 mm |
| Feb | -6.9 °C | +3.9 °C | 25 mm | +1 mm |
| Mar | 0.2 °C | +3.1 °C | 25 mm | -3 mm |
| Apr | 13.8 °C | +5.9 °C | 56 mm | +21 mm |
| May | 18.1 °C | +0.7 °C | 48 mm | -1 mm |
| Jun | 26.2 °C | +3.3 °C | 51 mm | -5 mm |
| Jul | 25.0 °C | +0.1 °C | 42 mm | -27 mm |
| Aug | 20.8 °C | -1.6 °C | 146 mm | +86 mm |
| Sep | 17.8 °C | +1.6 °C | 37 mm | -9 mm |
| Oct | 4.7 °C | -2.4 °C | 34 mm | -18 mm |
| Nov | -0.9 °C | +3.3 °C | 116 mm | +62 mm |
| Dec | -7.6 °C | +3.3 °C | 58 mm | +15 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 Pervomayskoye?
Pervomayskoye has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 1.7 °C and it receives 546 mm of precipitation per year.
What is the hottest day ever recorded in Pervomayskoye?
The hottest day measured in Pervomayskoye between 1940 and 2025 was 12 July 2014, reaching 38.5 °C.
What is the coldest day in Pervomayskoye?
The coldest day measured in Pervomayskoye between 1940 and 2025 was 7 January 2001, at -48.2 °C.
Does it snow in Pervomayskoye?
Yes. Pervomayskoye gets on average 145.9 cm of snow per year and has around 191 frost days.
Has the climate of Pervomayskoye warmed?
Yes: Pervomayskoye warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Pervomayskoye?
The wettest day measured in Pervomayskoye between 1940 and 2025 was 27 August 2014, with 37 mm of rain in 24 hours.
What was the windiest day in Pervomayskoye?
The windiest day measured in Pervomayskoye between 1940 and 2025 was 17 February 2004, with winds reaching 54.3 km/h.
What is the warmest month in Pervomayskoye?
The warmest month in Pervomayskoye is July (19.7 °C on average); the coldest is January (-16.9 °C).
How much does it rain in Pervomayskoye?
Pervomayskoye receives on average 546 mm of precipitation per year, spread over about 121 rainy days.
Is it sunny in Pervomayskoye?
Pervomayskoye 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 Pervomayskoye?
The heaviest 24-hour snowfall measured in Pervomayskoye between 1940 and 2025 was 30 November 1984, with 16.5 cm.
Are there tropical nights in Pervomayskoye?
Yes: Pervomayskoye has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Pervomayskoye?
In Pervomayskoye, between 1940 and 2025, the highest apparent temperature reached 40.3 °C on 22 July 1953, and the lowest was -53.1 °C on 7 January 2001.
Compare Pervomayskoye with another city
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Nearby cities
The climate around Pervomayskoye