Zvolen climate — normals and trends
Zvolen (Slovakia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.4 °C and it receives 836 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 (17.6 °C on average) and the coldest is January (-3.9 °C). Rainfall peaks in June.
Zvolen averages 126 frost days, 2 hot days (≥ 30 °C) and 134 rainy days per year.
Zvolen has warmed by +2.7 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 145 to 107 per year over the period.
The hottest day of the period reached 35.1 °C (on 21 July 2022) and the coldest -28.2 °C (on 21 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
ZvolenBanská Bystrica Region
- coords
- 48.57°, 19.15°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.4°C
Average daily high
11.7°C
Average daily low
3.2°C
Annual rainfall
836mm
Sunshine / day
8.2h
Mean relative humidity
81%
Average peak wind
11.6km/h
Seasonal range
21.5°C
Frost days (< 0 °C)
126 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
134 d/yr
Annual snowfall
93.7 cm
Average feels-like high
9.9 °C
Average feels-like low
0.7 °C
Average peak gust
30.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
11.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.59 · 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
35.1 °C
21 July 2022
Coldest day
-28.2 °C
21 January 1940
Wettest day
59 mm
18 July 1997
Windiest day
35.6 km/h
19 March 1948
Strongest gust
102.2 km/h
1 March 1990
Hottest feels-like
36.9 °C
19 July 2007
Coldest feels-like
-34.0 °C
11 January 1940
Snowiest day
20.5 cm
30 January 2015
Sunniest day
15.2 h
5 July 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 | 2.8 °C | +3.6 °C | 39 mm | -8 mm |
| Feb | 3.3 °C | +1.6 °C | 25 mm | -24 mm |
| Mar | 11.5 °C | +4.8 °C | 92 mm | +41 mm |
| Apr | 15.5 °C | +2.6 °C | 77 mm | +7 mm |
| May | 15.8 °C | -1.7 °C | 82 mm | -17 mm |
| Jun | 24.6 °C | +3.8 °C | 24 mm | -80 mm |
| Jul | 24.2 °C | +1.5 °C | 103 mm | +12 mm |
| Aug | 25.0 °C | +2.4 °C | 91 mm | +11 mm |
| Sep | 20.2 °C | +2.0 °C | 101 mm | +38 mm |
| Oct | 11.6 °C | -0.8 °C | 63 mm | +5 mm |
| Nov | 6.1 °C | +0.6 °C | 121 mm | +53 mm |
| Dec | 3.4 °C | +2.7 °C | 15 mm | -41 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 Zvolen?
Zvolen has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.4 °C and it receives 836 mm of precipitation per year.
What is the hottest day ever recorded in Zvolen?
The hottest day measured in Zvolen between 1940 and 2025 was 21 July 2022, reaching 35.1 °C.
What is the coldest day in Zvolen?
The coldest day measured in Zvolen between 1940 and 2025 was 21 January 1940, at -28.2 °C.
Does it snow in Zvolen?
Yes. Zvolen gets on average 93.7 cm of snow per year and has around 126 frost days.
Has the climate of Zvolen warmed?
Yes: Zvolen warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Zvolen?
The wettest day measured in Zvolen between 1940 and 2025 was 18 July 1997, with 59 mm of rain in 24 hours.
What was the windiest day in Zvolen?
The windiest day measured in Zvolen between 1940 and 2025 was 19 March 1948, with winds reaching 35.6 km/h.
What is the warmest month in Zvolen?
The warmest month in Zvolen is July (17.6 °C on average); the coldest is January (-3.9 °C).
How much does it rain in Zvolen?
Zvolen receives on average 836 mm of precipitation per year, spread over about 134 rainy days.
Is it sunny in Zvolen?
Zvolen gets on average 8.2 hours of sunshine per day, roughly 2,993 hours per year over 1940-2025.
What is the biggest single-day snowfall in Zvolen?
The heaviest 24-hour snowfall measured in Zvolen between 1940 and 2025 was 30 January 2015, with 20.5 cm.
Are there tropical nights in Zvolen?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Zvolen.
What was the most extreme apparent temperature in Zvolen?
In Zvolen, between 1940 and 2025, the highest apparent temperature reached 36.9 °C on 19 July 2007, and the lowest was -34.0 °C on 11 January 1940.
Compare Zvolen with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Zvolen