Gratkorn climate — normals and trends
Gratkorn (Austria) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.8 °C and it receives 879 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 (16.6 °C on average) and the coldest is January (-3.9 °C). Rainfall peaks in July.
Gratkorn averages 137 frost days, 1 hot days (≥ 30 °C) and 144 rainy days per year.
Gratkorn 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 159 to 115 per year over the period.
The hottest day of the period reached 34.4 °C (on 3 August 2013) and the coldest -29.0 °C (on 7 January 1985).
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
GratkornStyria
- coords
- 47.13°, 15.35°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.8°C
Average daily high
11.3°C
Average daily low
2.6°C
Annual rainfall
879mm
Sunshine / day
8.2h
Mean relative humidity
79%
Average peak wind
9.7km/h
Seasonal range
20.5°C
Frost days (< 0 °C)
137 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
144 d/yr
Annual snowfall
109.3 cm
Average feels-like high
9.5 °C
Average feels-like low
0.1 °C
Average peak gust
32.2 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
12.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.57 · 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
3 August 2013
Coldest day
-29.0 °C
7 January 1985
Wettest day
65 mm
5 July 2022
Windiest day
33.4 km/h
16 March 1962
Strongest gust
104.4 km/h
17 February 1962
Hottest feels-like
36.6 °C
5 July 1957
Coldest feels-like
-33.8 °C
7 January 1985
Snowiest day
19.8 cm
4 March 1970
Sunniest day
15.5 h
22 June 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 | 4.2 °C | +4.4 °C | 24 mm | -12 mm |
| Feb | 3.6 °C | +1.4 °C | 24 mm | -14 mm |
| Mar | 10.6 °C | +3.9 °C | 98 mm | +45 mm |
| Apr | 14.8 °C | +2.9 °C | 76 mm | +10 mm |
| May | 16.1 °C | -0.3 °C | 107 mm | +4 mm |
| Jun | 24.9 °C | +5.0 °C | 67 mm | -47 mm |
| Jul | 22.6 °C | +0.9 °C | 120 mm | +5 mm |
| Aug | 23.3 °C | +2.0 °C | 89 mm | -15 mm |
| Sep | 18.9 °C | +1.4 °C | 143 mm | +63 mm |
| Oct | 12.2 °C | +0.1 °C | 49 mm | -14 mm |
| Nov | 6.8 °C | +1.3 °C | 58 mm | -2 mm |
| Dec | 3.2 °C | +2.3 °C | 28 mm | -19 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 Gratkorn?
Gratkorn has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.8 °C and it receives 879 mm of precipitation per year.
What is the hottest day ever recorded in Gratkorn?
The hottest day measured in Gratkorn between 1940 and 2025 was 3 August 2013, reaching 34.4 °C.
What is the coldest day in Gratkorn?
The coldest day measured in Gratkorn between 1940 and 2025 was 7 January 1985, at -29.0 °C.
Does it snow in Gratkorn?
Yes. Gratkorn gets on average 109.3 cm of snow per year and has around 137 frost days.
Has the climate of Gratkorn warmed?
Yes: Gratkorn warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Gratkorn?
The wettest day measured in Gratkorn between 1940 and 2025 was 5 July 2022, with 65 mm of rain in 24 hours.
What was the windiest day in Gratkorn?
The windiest day measured in Gratkorn between 1940 and 2025 was 16 March 1962, with winds reaching 33.4 km/h.
What is the warmest month in Gratkorn?
The warmest month in Gratkorn is July (16.6 °C on average); the coldest is January (-3.9 °C).
How much does it rain in Gratkorn?
Gratkorn receives on average 879 mm of precipitation per year, spread over about 144 rainy days.
Is it sunny in Gratkorn?
Gratkorn 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 Gratkorn?
The heaviest 24-hour snowfall measured in Gratkorn between 1940 and 2025 was 4 March 1970, with 19.8 cm.
Are there tropical nights in Gratkorn?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Gratkorn.
What was the most extreme apparent temperature in Gratkorn?
In Gratkorn, between 1940 and 2025, the highest apparent temperature reached 36.6 °C on 5 July 1957, and the lowest was -33.8 °C on 7 January 1985.
Compare Gratkorn with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Gratkorn