Ostroh climate — normals and trends
Ostroh (Ukraine) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.7 °C and it receives 688 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 (18.9 °C on average) and the coldest is January (-4.4 °C). Rainfall peaks in July.
Ostroh averages 117 frost days, 4 hot days (≥ 30 °C) and 132 rainy days per year.
Ostroh has warmed by +2.7 °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 136 to 98 per year over the period.
The hottest day of the period reached 36.1 °C (on 13 July 2024) and the coldest -36.9 °C (on 10 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
OstrohRivne Oblast
- coords
- 50.33°, 26.52°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.7°C
Average daily high
11.5°C
Average daily low
4.0°C
Annual rainfall
688mm
Sunshine / day
7.2h
Mean relative humidity
78%
Average peak wind
17.6km/h
Seasonal range
23.3°C
Frost days (< 0 °C)
117 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
132 d/yr
Annual snowfall
86.0 cm
Average feels-like high
8.9 °C
Average feels-like low
0.8 °C
Average peak gust
34.8 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
11.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.48 · 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
36.1 °C
13 July 2024
Coldest day
-36.9 °C
10 January 1940
Wettest day
69 mm
11 August 1955
Windiest day
49.5 km/h
28 October 1969
Strongest gust
98.3 km/h
23 January 1993
Hottest feels-like
38.3 °C
16 July 2024
Coldest feels-like
-42.3 °C
10 January 1940
Snowiest day
26.8 cm
13 November 2016
Sunniest day
15.6 h
20 June 2013
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 | 4.4 °C | +6.4 °C | 27 mm | -10 mm |
| Feb | 0.6 °C | +1.0 °C | 9 mm | -30 mm |
| Mar | 11.6 °C | +7.0 °C | 32 mm | -9 mm |
| Apr | 15.2 °C | +2.6 °C | 49 mm | -4 mm |
| May | 15.3 °C | -3.3 °C | 120 mm | +50 mm |
| Jun | 23.4 °C | +1.4 °C | 57 mm | -27 mm |
| Jul | 25.4 °C | +1.9 °C | 134 mm | +39 mm |
| Aug | 24.3 °C | +1.1 °C | 54 mm | -19 mm |
| Sep | 20.9 °C | +2.5 °C | 85 mm | +25 mm |
| Oct | 11.0 °C | -0.9 °C | 55 mm | +10 mm |
| Nov | 7.9 °C | +3.0 °C | 38 mm | -8 mm |
| Dec | 3.2 °C | +2.9 °C | 28 mm | -16 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 Ostroh?
Ostroh has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.7 °C and it receives 688 mm of precipitation per year.
What is the hottest day ever recorded in Ostroh?
The hottest day measured in Ostroh between 1940 and 2025 was 13 July 2024, reaching 36.1 °C.
What is the coldest day in Ostroh?
The coldest day measured in Ostroh between 1940 and 2025 was 10 January 1940, at -36.9 °C.
Does it snow in Ostroh?
Yes. Ostroh gets on average 86.0 cm of snow per year and has around 117 frost days.
Has the climate of Ostroh warmed?
Yes: Ostroh warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ostroh?
The wettest day measured in Ostroh between 1940 and 2025 was 11 August 1955, with 69 mm of rain in 24 hours.
What was the windiest day in Ostroh?
The windiest day measured in Ostroh between 1940 and 2025 was 28 October 1969, with winds reaching 49.5 km/h.
What is the warmest month in Ostroh?
The warmest month in Ostroh is July (18.9 °C on average); the coldest is January (-4.4 °C).
How much does it rain in Ostroh?
Ostroh receives on average 688 mm of precipitation per year, spread over about 132 rainy days.
Is it sunny in Ostroh?
Ostroh gets on average 7.2 hours of sunshine per day, roughly 2,628 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ostroh?
The heaviest 24-hour snowfall measured in Ostroh between 1940 and 2025 was 13 November 2016, with 26.8 cm.
Are there tropical nights in Ostroh?
Yes: Ostroh has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ostroh?
In Ostroh, between 1940 and 2025, the highest apparent temperature reached 38.3 °C on 16 July 2024, and the lowest was -42.3 °C on 10 January 1940.
Compare Ostroh with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ostroh