Zvornik climate — normals and trends
Zvornik (Bosnia and Herzegovina) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.9 °C and it receives 869 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 (21.1 °C on average) and the coldest is January (-0.7 °C). Rainfall peaks in June.
Zvornik averages 84 frost days, 21 hot days (≥ 30 °C) and 134 rainy days per year.
Zvornik has warmed by +2.4 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.
The number of frost days there went from about 103 to 65 per year over the period.
The hottest day of the period reached 40.4 °C (on 19 August 1946) and the coldest -28.5 °C (on 24 January 1942).
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
ZvornikRepublika Srpska
- coords
- 44.39°, 19.10°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.9°C
Average daily high
15.9°C
Average daily low
6.3°C
Annual rainfall
869mm
Sunshine / day
8.5h
Mean relative humidity
76%
Average peak wind
10.8km/h
Seasonal range
21.8°C
Frost days (< 0 °C)
84 d/yr
Hot days (≥ 30 °C)
21 d/yr
Rainy days (≥ 1 mm)
134 d/yr
Annual snowfall
97.2 cm
Average feels-like high
14.8 °C
Average feels-like low
4.4 °C
Average peak gust
26.6 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
13.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.49 · 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
40.4 °C
19 August 1946
Coldest day
-28.5 °C
24 January 1942
Wettest day
86 mm
29 July 1966
Windiest day
33.4 km/h
24 January 1985
Strongest gust
86.8 km/h
4 February 2020
Hottest feels-like
43.1 °C
22 June 2024
Coldest feels-like
-33.0 °C
24 January 1942
Snowiest day
30.2 cm
14 November 2004
Sunniest day
14.9 h
24 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 | 7.6 °C | +4.5 °C | 34 mm | -25 mm |
| Feb | 6.9 °C | +0.8 °C | 36 mm | -23 mm |
| Mar | 15.4 °C | +4.2 °C | 136 mm | +66 mm |
| Apr | 18.7 °C | +2.3 °C | 82 mm | -1 mm |
| May | 20.7 °C | -0.3 °C | 90 mm | -1 mm |
| Jun | 29.7 °C | +5.3 °C | 0 mm | -98 mm |
| Jul | 29.6 °C | +3.1 °C | 70 mm | -12 mm |
| Aug | 28.8 °C | +2.0 °C | 39 mm | -24 mm |
| Sep | 25.5 °C | +2.8 °C | 39 mm | -24 mm |
| Oct | 16.2 °C | -0.9 °C | 89 mm | +31 mm |
| Nov | 11.9 °C | +1.4 °C | 99 mm | +27 mm |
| Dec | 6.5 °C | +1.6 °C | 24 mm | -46 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 Zvornik?
Zvornik has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 10.9 °C and it receives 869 mm of precipitation per year.
What is the hottest day ever recorded in Zvornik?
The hottest day measured in Zvornik between 1940 and 2025 was 19 August 1946, reaching 40.4 °C.
What is the coldest day in Zvornik?
The coldest day measured in Zvornik between 1940 and 2025 was 24 January 1942, at -28.5 °C.
Does it snow in Zvornik?
Yes. Zvornik gets on average 97.2 cm of snow per year and has around 84 frost days.
Has the climate of Zvornik warmed?
Yes: Zvornik warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Zvornik?
The wettest day measured in Zvornik between 1940 and 2025 was 29 July 1966, with 86 mm of rain in 24 hours.
What was the windiest day in Zvornik?
The windiest day measured in Zvornik between 1940 and 2025 was 24 January 1985, with winds reaching 33.4 km/h.
What is the warmest month in Zvornik?
The warmest month in Zvornik is July (21.1 °C on average); the coldest is January (-0.7 °C).
How much does it rain in Zvornik?
Zvornik receives on average 869 mm of precipitation per year, spread over about 134 rainy days.
Is it sunny in Zvornik?
Zvornik gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.
What is the biggest single-day snowfall in Zvornik?
The heaviest 24-hour snowfall measured in Zvornik between 1940 and 2025 was 14 November 2004, with 30.2 cm.
Are there tropical nights in Zvornik?
Yes: Zvornik has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Zvornik?
In Zvornik, between 1940 and 2025, the highest apparent temperature reached 43.1 °C on 22 June 2024, and the lowest was -33.0 °C on 24 January 1942.
Compare Zvornik with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Zvornik