Bytča climate — normals and trends
Bytča (Slovakia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.0 °C and it receives 922 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 (16.9 °C on average) and the coldest is January (-4.0 °C). Rainfall peaks in July.
Bytča averages 125 frost days, 1 hot days (≥ 30 °C) and 157 rainy days per year.
Bytča has warmed by +2.8 °C between 1940 and 2025, or +0.33 °C per decade. This trend is statistically significant.
The number of frost days there went from about 147 to 103 per year over the period.
The hottest day of the period reached 34.7 °C (on 8 August 2013) and the coldest -31.2 °C (on 11 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
BytčaŽilina Region
- coords
- 49.22°, 18.56°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.0°C
Average daily high
10.8°C
Average daily low
3.2°C
Annual rainfall
922mm
Sunshine / day
7.7h
Mean relative humidity
81%
Average peak wind
14.5km/h
Seasonal range
20.9°C
Frost days (< 0 °C)
125 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
157 d/yr
Annual snowfall
139.9 cm
Average feels-like high
8.5 °C
Average feels-like low
0.4 °C
Average peak gust
35.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
11.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.61 · 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
34.7 °C
8 August 2013
Coldest day
-31.2 °C
11 January 1940
Wettest day
67 mm
6 July 1997
Windiest day
37.9 km/h
15 May 2014
Strongest gust
100.4 km/h
19 January 2007
Hottest feels-like
35.9 °C
15 August 1952
Coldest feels-like
-36.0 °C
11 January 1940
Snowiest day
21.3 cm
6 December 1992
Sunniest day
15.5 h
2 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 | 2.7 °C | +4.0 °C | 49 mm | -10 mm |
| Feb | 2.8 °C | +1.9 °C | 20 mm | -39 mm |
| Mar | 10.5 °C | +4.9 °C | 67 mm | +6 mm |
| Apr | 14.4 °C | +2.7 °C | 36 mm | -33 mm |
| May | 14.7 °C | -1.8 °C | 90 mm | -6 mm |
| Jun | 22.7 °C | +2.9 °C | 74 mm | -31 mm |
| Jul | 22.5 °C | +1.0 °C | 164 mm | +50 mm |
| Aug | 23.0 °C | +1.6 °C | 83 mm | -12 mm |
| Sep | 18.6 °C | +1.5 °C | 119 mm | +43 mm |
| Oct | 10.4 °C | -1.2 °C | 78 mm | +20 mm |
| Nov | 5.8 °C | +0.8 °C | 94 mm | +27 mm |
| Dec | 2.7 °C | +2.4 °C | 17 mm | -49 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 Bytča?
Bytča has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.0 °C and it receives 922 mm of precipitation per year.
What is the hottest day ever recorded in Bytča?
The hottest day measured in Bytča between 1940 and 2025 was 8 August 2013, reaching 34.7 °C.
What is the coldest day in Bytča?
The coldest day measured in Bytča between 1940 and 2025 was 11 January 1940, at -31.2 °C.
Does it snow in Bytča?
Yes. Bytča gets on average 139.9 cm of snow per year and has around 125 frost days.
Has the climate of Bytča warmed?
Yes: Bytča warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bytča?
The wettest day measured in Bytča between 1940 and 2025 was 6 July 1997, with 67 mm of rain in 24 hours.
What was the windiest day in Bytča?
The windiest day measured in Bytča between 1940 and 2025 was 15 May 2014, with winds reaching 37.9 km/h.
What is the warmest month in Bytča?
The warmest month in Bytča is July (16.9 °C on average); the coldest is January (-4.0 °C).
How much does it rain in Bytča?
Bytča receives on average 922 mm of precipitation per year, spread over about 157 rainy days.
Is it sunny in Bytča?
Bytča 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 Bytča?
The heaviest 24-hour snowfall measured in Bytča between 1940 and 2025 was 6 December 1992, with 21.3 cm.
Are there tropical nights in Bytča?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Bytča.
What was the most extreme apparent temperature in Bytča?
In Bytča, between 1940 and 2025, the highest apparent temperature reached 35.9 °C on 15 August 1952, and the lowest was -36.0 °C on 11 January 1940.
Compare Bytča with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bytča