Pervomaisk climate — normals and trends
Pervomaisk (Ukraine) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.2 °C and it receives 525 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 (21.6 °C on average) and the coldest is January (-3.8 °C). Rainfall peaks in June.
Pervomaisk averages 110 frost days, 17 hot days (≥ 30 °C) and 98 rainy days per year.
Pervomaisk has warmed by +2.6 °C between 1940 and 2025, or +0.30 °C per decade. This trend is statistically significant.
The number of frost days there went from about 129 to 91 per year over the period.
The hottest day of the period reached 38.2 °C (on 19 July 2007) and the coldest -34.1 °C (on 11 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
PervomaiskMykolaiv Oblast
- coords
- 48.04°, 30.85°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.2°C
Average daily high
13.4°C
Average daily low
5.1°C
Annual rainfall
525mm
Sunshine / day
7.8h
Mean relative humidity
72%
Average peak wind
15.9km/h
Seasonal range
25.4°C
Frost days (< 0 °C)
110 d/yr
Hot days (≥ 30 °C)
17 d/yr
Rainy days (≥ 1 mm)
98 d/yr
Annual snowfall
59.5 cm
Average feels-like high
11.1 °C
Average feels-like low
2.3 °C
Average peak gust
33.2 km/h
Tropical nights (≥ 20 °C)
5 d/yr
Solar radiation
12.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °C per decade · r² = 0.42 · 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
38.2 °C
19 July 2007
Coldest day
-34.1 °C
11 January 1940
Wettest day
68 mm
5 September 1985
Windiest day
48.5 km/h
28 October 1969
Strongest gust
100.8 km/h
28 October 1969
Hottest feels-like
40.0 °C
5 August 2017
Coldest feels-like
-39.4 °C
11 January 1940
Snowiest day
20.1 cm
10 April 1965
Sunniest day
15.8 h
26 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 | 5.6 °C | +6.7 °C | 17 mm | -17 mm |
| Feb | 0.9 °C | +0.3 °C | 8 mm | -26 mm |
| Mar | 13.1 °C | +7.0 °C | 19 mm | -17 mm |
| Apr | 17.0 °C | +2.4 °C | 25 mm | -19 mm |
| May | 19.3 °C | -1.5 °C | 86 mm | +34 mm |
| Jun | 26.3 °C | +1.6 °C | 21 mm | -47 mm |
| Jul | 30.9 °C | +4.2 °C | 46 mm | -10 mm |
| Aug | 28.4 °C | +1.9 °C | 13 mm | -32 mm |
| Sep | 23.7 °C | +2.5 °C | 34 mm | -8 mm |
| Oct | 13.1 °C | -0.7 °C | 90 mm | +53 mm |
| Nov | 11.0 °C | +4.8 °C | 57 mm | +17 mm |
| Dec | 3.7 °C | +2.5 °C | 25 mm | -11 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 Pervomaisk?
Pervomaisk has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 9.2 °C and it receives 525 mm of precipitation per year.
What is the hottest day ever recorded in Pervomaisk?
The hottest day measured in Pervomaisk between 1940 and 2025 was 19 July 2007, reaching 38.2 °C.
What is the coldest day in Pervomaisk?
The coldest day measured in Pervomaisk between 1940 and 2025 was 11 January 1940, at -34.1 °C.
Does it snow in Pervomaisk?
Yes. Pervomaisk gets on average 59.5 cm of snow per year and has around 110 frost days.
Has the climate of Pervomaisk warmed?
Yes: Pervomaisk warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Pervomaisk?
The wettest day measured in Pervomaisk between 1940 and 2025 was 5 September 1985, with 68 mm of rain in 24 hours.
What was the windiest day in Pervomaisk?
The windiest day measured in Pervomaisk between 1940 and 2025 was 28 October 1969, with winds reaching 48.5 km/h.
What is the warmest month in Pervomaisk?
The warmest month in Pervomaisk is July (21.6 °C on average); the coldest is January (-3.8 °C).
How much does it rain in Pervomaisk?
Pervomaisk receives on average 525 mm of precipitation per year, spread over about 98 rainy days.
Is it sunny in Pervomaisk?
Pervomaisk gets on average 7.8 hours of sunshine per day, roughly 2,847 hours per year over 1940-2025.
What is the biggest single-day snowfall in Pervomaisk?
The heaviest 24-hour snowfall measured in Pervomaisk between 1940 and 2025 was 10 April 1965, with 20.1 cm.
Are there tropical nights in Pervomaisk?
Yes: Pervomaisk has on average 5 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Pervomaisk?
In Pervomaisk, between 1940 and 2025, the highest apparent temperature reached 40.0 °C on 5 August 2017, and the lowest was -39.4 °C on 11 January 1940.
Compare Pervomaisk with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Pervomaisk