Trstená climate — normals and trends
Trstená (Slovakia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 5.2 °C and it receives 975 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 (15.1 °C on average) and the coldest is January (-5.6 °C). Rainfall peaks in July.
Trstená averages 155 frost days, 0 hot days (≥ 30 °C) and 168 rainy days per year.
Trstená 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 174 to 136 per year over the period.
The hottest day of the period reached 31.5 °C (on 8 August 2013) and the coldest -30.7 °C (on 8 January 2017).
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
TrstenáŽilina Region
- coords
- 49.36°, 19.61°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
5.2°C
Average daily high
9.1°C
Average daily low
1.4°C
Annual rainfall
975mm
Sunshine / day
7.7h
Mean relative humidity
83%
Average peak wind
11.6km/h
Seasonal range
20.7°C
Frost days (< 0 °C)
155 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
168 d/yr
Annual snowfall
200.4 cm
Average feels-like high
6.7 °C
Average feels-like low
-1.4 °C
Average peak gust
33.8 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
+2.7 °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
31.5 °C
8 August 2013
Coldest day
-30.7 °C
8 January 2017
Wettest day
54 mm
5 October 1963
Windiest day
35.5 km/h
22 December 1947
Strongest gust
109.8 km/h
27 January 2008
Hottest feels-like
33.4 °C
8 July 1957
Coldest feels-like
-36.5 °C
8 January 2017
Snowiest day
23.6 cm
30 May 1966
Sunniest day
15.3 h
2 July 2025
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 1.7 °C | +4.4 °C | 56 mm | -8 mm |
| Feb | 1.8 °C | +2.5 °C | 25 mm | -36 mm |
| Mar | 9.1 °C | +5.7 °C | 53 mm | -12 mm |
| Apr | 12.5 °C | +3.2 °C | 59 mm | -14 mm |
| May | 12.7 °C | -2.0 °C | 123 mm | +21 mm |
| Jun | 20.8 °C | +2.9 °C | 60 mm | -55 mm |
| Jul | 20.5 °C | +0.9 °C | 163 mm | +43 mm |
| Aug | 21.4 °C | +1.8 °C | 71 mm | -28 mm |
| Sep | 17.4 °C | +1.9 °C | 89 mm | +10 mm |
| Oct | 8.7 °C | -1.5 °C | 99 mm | +35 mm |
| Nov | 5.1 °C | +1.5 °C | 101 mm | +33 mm |
| Dec | 2.2 °C | +3.5 °C | 17 mm | -51 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 Trstená?
Trstená has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 5.2 °C and it receives 975 mm of precipitation per year.
What is the hottest day ever recorded in Trstená?
The hottest day measured in Trstená between 1940 and 2025 was 8 August 2013, reaching 31.5 °C.
What is the coldest day in Trstená?
The coldest day measured in Trstená between 1940 and 2025 was 8 January 2017, at -30.7 °C.
Does it snow in Trstená?
Yes. Trstená gets on average 200.4 cm of snow per year and has around 155 frost days.
Has the climate of Trstená warmed?
Yes: Trstená warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Trstená?
The wettest day measured in Trstená between 1940 and 2025 was 5 October 1963, with 54 mm of rain in 24 hours.
What was the windiest day in Trstená?
The windiest day measured in Trstená between 1940 and 2025 was 22 December 1947, with winds reaching 35.5 km/h.
What is the warmest month in Trstená?
The warmest month in Trstená is July (15.1 °C on average); the coldest is January (-5.6 °C).
How much does it rain in Trstená?
Trstená receives on average 975 mm of precipitation per year, spread over about 168 rainy days.
Is it sunny in Trstená?
Trstená 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 Trstená?
The heaviest 24-hour snowfall measured in Trstená between 1940 and 2025 was 30 May 1966, with 23.6 cm.
Are there tropical nights in Trstená?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Trstená.
What was the most extreme apparent temperature in Trstená?
In Trstená, between 1940 and 2025, the highest apparent temperature reached 33.4 °C on 8 July 1957, and the lowest was -36.5 °C on 8 January 2017.
Compare Trstená with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Trstená