Ilava climate — normals and trends
Ilava (Slovakia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.9 °C and it receives 780 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 (18.0 °C on average) and the coldest is January (-3.2 °C). Rainfall peaks in July.
Ilava averages 113 frost days, 3 hot days (≥ 30 °C) and 138 rainy days per year.
Ilava 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 135 to 91 per year over the period.
The hottest day of the period reached 35.9 °C (on 8 August 2013) and the coldest -30.7 °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
IlavaTrenčín Region
- coords
- 49.00°, 18.24°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.9°C
Average daily high
11.9°C
Average daily low
3.9°C
Annual rainfall
780mm
Sunshine / day
7.8h
Mean relative humidity
79%
Average peak wind
14.2km/h
Seasonal range
21.2°C
Frost days (< 0 °C)
113 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
138 d/yr
Annual snowfall
94.9 cm
Average feels-like high
9.7 °C
Average feels-like low
1.3 °C
Average peak gust
34.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
11.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.60 · 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
35.9 °C
8 August 2013
Coldest day
-30.7 °C
11 January 1940
Wettest day
56 mm
17 July 2001
Windiest day
38.5 km/h
15 May 2014
Strongest gust
101.5 km/h
29 October 2017
Hottest feels-like
36.9 °C
15 August 1952
Coldest feels-like
-35.9 °C
11 January 1940
Snowiest day
19.1 cm
3 April 1970
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 | 3.0 °C | +3.5 °C | 38 mm | -12 mm |
| Feb | 3.5 °C | +1.6 °C | 17 mm | -32 mm |
| Mar | 11.5 °C | +4.6 °C | 71 mm | +18 mm |
| Apr | 15.6 °C | +2.8 °C | 36 mm | -23 mm |
| May | 16.0 °C | -1.6 °C | 72 mm | -8 mm |
| Jun | 24.2 °C | +3.3 °C | 60 mm | -28 mm |
| Jul | 23.9 °C | +1.1 °C | 132 mm | +41 mm |
| Aug | 24.6 °C | +1.9 °C | 76 mm | -1 mm |
| Sep | 19.8 °C | +1.5 °C | 105 mm | +41 mm |
| Oct | 11.6 °C | -0.9 °C | 67 mm | +16 mm |
| Nov | 6.3 °C | +0.5 °C | 87 mm | +26 mm |
| Dec | 3.1 °C | +2.0 °C | 15 mm | -43 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 Ilava?
Ilava has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.9 °C and it receives 780 mm of precipitation per year.
What is the hottest day ever recorded in Ilava?
The hottest day measured in Ilava between 1940 and 2025 was 8 August 2013, reaching 35.9 °C.
What is the coldest day in Ilava?
The coldest day measured in Ilava between 1940 and 2025 was 11 January 1940, at -30.7 °C.
Does it snow in Ilava?
Yes. Ilava gets on average 94.9 cm of snow per year and has around 113 frost days.
Has the climate of Ilava warmed?
Yes: Ilava warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ilava?
The wettest day measured in Ilava between 1940 and 2025 was 17 July 2001, with 56 mm of rain in 24 hours.
What was the windiest day in Ilava?
The windiest day measured in Ilava between 1940 and 2025 was 15 May 2014, with winds reaching 38.5 km/h.
What is the warmest month in Ilava?
The warmest month in Ilava is July (18.0 °C on average); the coldest is January (-3.2 °C).
How much does it rain in Ilava?
Ilava receives on average 780 mm of precipitation per year, spread over about 138 rainy days.
Is it sunny in Ilava?
Ilava gets on average 7.8 hours of sunshine per day, roughly 2,847 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ilava?
The heaviest 24-hour snowfall measured in Ilava between 1940 and 2025 was 3 April 1970, with 19.1 cm.
Are there tropical nights in Ilava?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Ilava.
What was the most extreme apparent temperature in Ilava?
In Ilava, between 1940 and 2025, the highest apparent temperature reached 36.9 °C on 15 August 1952, and the lowest was -35.9 °C on 11 January 1940.
Compare Ilava with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ilava