Rajec climate — normals and trends
Rajec (Slovakia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.9 °C and it receives 860 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 (-4.1 °C). Rainfall peaks in July.
Rajec averages 131 frost days, 1 hot days (≥ 30 °C) and 147 rainy days per year.
Rajec has warmed by +2.9 °C between 1940 and 2025, or +0.35 °C per decade. This trend is statistically significant.
The number of frost days there went from about 153 to 109 per year over the period.
The hottest day of the period reached 34.4 °C (on 21 July 2022) and the coldest -32.2 °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
RajecŽilina Region
- coords
- 49.09°, 18.64°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.9°C
Average daily high
10.9°C
Average daily low
2.8°C
Annual rainfall
860mm
Sunshine / day
7.7h
Mean relative humidity
80%
Average peak wind
12.7km/h
Seasonal range
21.0°C
Frost days (< 0 °C)
131 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
147 d/yr
Annual snowfall
129.1 cm
Average feels-like high
8.8 °C
Average feels-like low
0.1 °C
Average peak gust
36.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
11.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.4 °C per decade · r² = 0.66 · 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
34.4 °C
21 July 2022
Coldest day
-32.2 °C
11 January 1940
Wettest day
59 mm
13 September 1998
Windiest day
33.2 km/h
19 November 2004
Strongest gust
108.4 km/h
19 January 2007
Hottest feels-like
35.7 °C
15 August 1952
Coldest feels-like
-36.9 °C
11 January 1940
Snowiest day
19.0 cm
19 December 1981
Sunniest day
15.4 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 | 2.6 °C | +3.8 °C | 44 mm | -13 mm |
| Feb | 2.9 °C | +1.9 °C | 21 mm | -36 mm |
| Mar | 10.8 °C | +5.1 °C | 68 mm | +10 mm |
| Apr | 14.6 °C | +2.8 °C | 43 mm | -22 mm |
| May | 14.9 °C | -1.8 °C | 87 mm | -2 mm |
| Jun | 23.1 °C | +3.2 °C | 52 mm | -44 mm |
| Jul | 22.9 °C | +1.2 °C | 142 mm | +44 mm |
| Aug | 23.7 °C | +2.1 °C | 78 mm | -4 mm |
| Sep | 19.1 °C | +1.8 °C | 100 mm | +31 mm |
| Oct | 10.6 °C | -1.1 °C | 77 mm | +19 mm |
| Nov | 5.9 °C | +0.9 °C | 96 mm | +29 mm |
| Dec | 2.9 °C | +2.7 °C | 12 mm | -54 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 Rajec?
Rajec has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.9 °C and it receives 860 mm of precipitation per year.
What is the hottest day ever recorded in Rajec?
The hottest day measured in Rajec between 1940 and 2025 was 21 July 2022, reaching 34.4 °C.
What is the coldest day in Rajec?
The coldest day measured in Rajec between 1940 and 2025 was 11 January 1940, at -32.2 °C.
Does it snow in Rajec?
Yes. Rajec gets on average 129.1 cm of snow per year and has around 131 frost days.
Has the climate of Rajec warmed?
Yes: Rajec warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Rajec?
The wettest day measured in Rajec between 1940 and 2025 was 13 September 1998, with 59 mm of rain in 24 hours.
What was the windiest day in Rajec?
The windiest day measured in Rajec between 1940 and 2025 was 19 November 2004, with winds reaching 33.2 km/h.
What is the warmest month in Rajec?
The warmest month in Rajec is July (16.9 °C on average); the coldest is January (-4.1 °C).
How much does it rain in Rajec?
Rajec receives on average 860 mm of precipitation per year, spread over about 147 rainy days.
Is it sunny in Rajec?
Rajec 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 Rajec?
The heaviest 24-hour snowfall measured in Rajec between 1940 and 2025 was 19 December 1981, with 19.0 cm.
Are there tropical nights in Rajec?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Rajec.
What was the most extreme apparent temperature in Rajec?
In Rajec, between 1940 and 2025, the highest apparent temperature reached 35.7 °C on 15 August 1952, and the lowest was -36.9 °C on 11 January 1940.
Compare Rajec with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Rajec