Izyum climate — normals and trends
Izyum (Ukraine) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.3 °C and it receives 527 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 (21.8 °C on average) and the coldest is January (-5.8 °C). Rainfall peaks in June.
Izyum averages 123 frost days, 20 hot days (≥ 30 °C) and 106 rainy days per year.
Izyum has warmed by +2.9 °C between 1940 and 2025, or +0.34 °C per decade. This trend is statistically significant.
The number of frost days there went from about 141 to 105 per year over the period.
The hottest day of the period reached 39.1 °C (on 17 July 2016) and the coldest -35.3 °C (on 9 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
IzyumKharkiv Oblast
- coords
- 49.21°, 37.28°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.3°C
Average daily high
12.4°C
Average daily low
4.2°C
Annual rainfall
527mm
Sunshine / day
7.7h
Mean relative humidity
72%
Average peak wind
18.5km/h
Seasonal range
27.6°C
Frost days (< 0 °C)
123 d/yr
Hot days (≥ 30 °C)
20 d/yr
Rainy days (≥ 1 mm)
106 d/yr
Annual snowfall
79.5 cm
Average feels-like high
9.4 °C
Average feels-like low
1.0 °C
Average peak gust
35.3 km/h
Tropical nights (≥ 20 °C)
8 d/yr
Solar radiation
12.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.3 °C per decade · r² = 0.43 · 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
39.1 °C
17 July 2016
Coldest day
-35.3 °C
9 January 1940
Wettest day
65 mm
4 August 2019
Windiest day
52.0 km/h
28 January 1964
Strongest gust
97.6 km/h
23 November 2008
Hottest feels-like
40.5 °C
12 August 1951
Coldest feels-like
-41.5 °C
9 January 1940
Snowiest day
16.6 cm
18 January 1970
Sunniest day
15.0 h
16 May 1940
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 | 3.6 °C | +6.8 °C | 18 mm | -25 mm |
| Feb | -1.8 °C | +0.2 °C | 20 mm | -19 mm |
| Mar | 11.9 °C | +8.1 °C | 36 mm | -3 mm |
| Apr | 17.4 °C | +3.4 °C | 16 mm | -27 mm |
| May | 21.3 °C | +0.4 °C | 81 mm | +30 mm |
| Jun | 25.2 °C | +0.3 °C | 45 mm | -11 mm |
| Jul | 31.5 °C | +4.6 °C | 29 mm | -21 mm |
| Aug | 27.1 °C | +0.7 °C | 49 mm | +10 mm |
| Sep | 23.3 °C | +2.9 °C | 4 mm | -36 mm |
| Oct | 13.2 °C | +0.9 °C | 80 mm | +40 mm |
| Nov | 9.3 °C | +4.9 °C | 33 mm | -11 mm |
| Dec | 1.2 °C | +1.8 °C | 35 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 Izyum?
Izyum has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.3 °C and it receives 527 mm of precipitation per year.
What is the hottest day ever recorded in Izyum?
The hottest day measured in Izyum between 1940 and 2025 was 17 July 2016, reaching 39.1 °C.
What is the coldest day in Izyum?
The coldest day measured in Izyum between 1940 and 2025 was 9 January 1940, at -35.3 °C.
Does it snow in Izyum?
Yes. Izyum gets on average 79.5 cm of snow per year and has around 123 frost days.
Has the climate of Izyum warmed?
Yes: Izyum warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Izyum?
The wettest day measured in Izyum between 1940 and 2025 was 4 August 2019, with 65 mm of rain in 24 hours.
What was the windiest day in Izyum?
The windiest day measured in Izyum between 1940 and 2025 was 28 January 1964, with winds reaching 52.0 km/h.
What is the warmest month in Izyum?
The warmest month in Izyum is July (21.8 °C on average); the coldest is January (-5.8 °C).
How much does it rain in Izyum?
Izyum receives on average 527 mm of precipitation per year, spread over about 106 rainy days.
Is it sunny in Izyum?
Izyum gets on average 7.7 hours of sunshine per day, roughly 2,811 hours per year over 1940-2025.
What is the biggest single-day snowfall in Izyum?
The heaviest 24-hour snowfall measured in Izyum between 1940 and 2025 was 18 January 1970, with 16.6 cm.
Are there tropical nights in Izyum?
Yes: Izyum has on average 8 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Izyum?
In Izyum, between 1940 and 2025, the highest apparent temperature reached 40.5 °C on 12 August 1951, and the lowest was -41.5 °C on 9 January 1940.
Compare Izyum with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Izyum