Blatnica climate — normals and trends
Blatnica (Bosnia and Herzegovina) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.4 °C and it receives 1,259 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 (19.1 °C on average) and the coldest is January (-1.4 °C). Rainfall peaks in June.
Blatnica averages 96 frost days, 9 hot days (≥ 30 °C) and 164 rainy days per year.
Blatnica 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 119 to 73 per year over the period.
The hottest day of the period reached 37.6 °C (on 19 August 1946) and the coldest -27.7 °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
BlatnicaRepublika Srpska
- coords
- 44.49°, 17.82°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.4°C
Average daily high
14.2°C
Average daily low
5.1°C
Annual rainfall
1,259mm
Sunshine / day
8.4h
Mean relative humidity
78%
Average peak wind
9.9km/h
Seasonal range
20.5°C
Frost days (< 0 °C)
96 d/yr
Hot days (≥ 30 °C)
9 d/yr
Rainy days (≥ 1 mm)
164 d/yr
Annual snowfall
177.3 cm
Average feels-like high
12.9 °C
Average feels-like low
3.1 °C
Average peak gust
29.9 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
13.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.3 °C per decade · r² = 0.58 · 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
37.6 °C
19 August 1946
Coldest day
-27.7 °C
24 January 1942
Wettest day
115 mm
24 July 1976
Windiest day
32.2 km/h
18 December 1968
Strongest gust
98.6 km/h
10 April 1973
Hottest feels-like
40.0 °C
12 July 2024
Coldest feels-like
-32.6 °C
24 January 1942
Snowiest day
37.1 cm
14 November 2004
Sunniest day
14.8 h
22 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 | 6.1 °C | +3.7 °C | 47 mm | -32 mm |
| Feb | 6.3 °C | +1.5 °C | 67 mm | -13 mm |
| Mar | 13.8 °C | +4.5 °C | 226 mm | +132 mm |
| Apr | 17.3 °C | +2.9 °C | 97 mm | -20 mm |
| May | 19.3 °C | +0.4 °C | 136 mm | -2 mm |
| Jun | 28.3 °C | +6.1 °C | 7 mm | -137 mm |
| Jul | 28.0 °C | +3.8 °C | 84 mm | -41 mm |
| Aug | 26.9 °C | +2.4 °C | 74 mm | -30 mm |
| Sep | 23.8 °C | +3.2 °C | 57 mm | -43 mm |
| Oct | 15.1 °C | -0.4 °C | 90 mm | +6 mm |
| Nov | 11.0 °C | +1.8 °C | 133 mm | +32 mm |
| Dec | 6.3 °C | +2.3 °C | 32 mm | -62 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 Blatnica?
Blatnica has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 9.4 °C and it receives 1,259 mm of precipitation per year.
What is the hottest day ever recorded in Blatnica?
The hottest day measured in Blatnica between 1940 and 2025 was 19 August 1946, reaching 37.6 °C.
What is the coldest day in Blatnica?
The coldest day measured in Blatnica between 1940 and 2025 was 24 January 1942, at -27.7 °C.
Does it snow in Blatnica?
Yes. Blatnica gets on average 177.3 cm of snow per year and has around 96 frost days.
Has the climate of Blatnica warmed?
Yes: Blatnica warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Blatnica?
The wettest day measured in Blatnica between 1940 and 2025 was 24 July 1976, with 115 mm of rain in 24 hours.
What was the windiest day in Blatnica?
The windiest day measured in Blatnica between 1940 and 2025 was 18 December 1968, with winds reaching 32.2 km/h.
What is the warmest month in Blatnica?
The warmest month in Blatnica is July (19.1 °C on average); the coldest is January (-1.4 °C).
How much does it rain in Blatnica?
Blatnica receives on average 1,259 mm of precipitation per year, spread over about 164 rainy days.
Is it sunny in Blatnica?
Blatnica gets on average 8.4 hours of sunshine per day, roughly 3,066 hours per year over 1940-2025.
What is the biggest single-day snowfall in Blatnica?
The heaviest 24-hour snowfall measured in Blatnica between 1940 and 2025 was 14 November 2004, with 37.1 cm.
Are there tropical nights in Blatnica?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Blatnica.
What was the most extreme apparent temperature in Blatnica?
In Blatnica, between 1940 and 2025, the highest apparent temperature reached 40.0 °C on 12 July 2024, and the lowest was -32.6 °C on 24 January 1942.
Compare Blatnica with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Blatnica