Dornbirn climate — normals and trends
Dornbirn (Austria) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.8 °C and it receives 1,555 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 (17.1 °C on average) and the coldest is January (-1.9 °C). Rainfall peaks in June.
Dornbirn averages 106 frost days, 2 hot days (≥ 30 °C) and 175 rainy days per year.
Dornbirn has warmed by +2.9 °C between 1940 and 2025, or +0.34 °C per decade. This trend is statistically significant.
The number of frost days there went from about 138 to 74 per year over the period.
The hottest day of the period reached 33.2 °C (on 28 July 2013) and the coldest -28.9 °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
DornbirnVorarlberg
- coords
- 47.41°, 9.74°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.8°C
Average daily high
11.8°C
Average daily low
4.1°C
Annual rainfall
1,555mm
Sunshine / day
8.2h
Mean relative humidity
78%
Average peak wind
9.4km/h
Seasonal range
19.0°C
Frost days (< 0 °C)
106 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
175 d/yr
Annual snowfall
214.4 cm
Average feels-like high
10.2 °C
Average feels-like low
1.7 °C
Average peak gust
28.7 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
12.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.3 °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
33.2 °C
28 July 2013
Coldest day
-28.9 °C
7 January 1985
Wettest day
83 mm
20 July 1976
Windiest day
33.7 km/h
26 December 1999
Strongest gust
125.6 km/h
27 February 1990
Hottest feels-like
37.9 °C
6 July 1957
Coldest feels-like
-33.7 °C
7 January 1985
Snowiest day
28.6 cm
11 January 1954
Sunniest day
15.0 h
29 June 2019
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 | 4.4 °C | +2.9 °C | 96 mm | -10 mm |
| Feb | 5.9 °C | +2.5 °C | 32 mm | -68 mm |
| Mar | 10.8 °C | +3.3 °C | 82 mm | -25 mm |
| Apr | 15.5 °C | +3.7 °C | 52 mm | -68 mm |
| May | 16.7 °C | +0.4 °C | 136 mm | -21 mm |
| Jun | 24.7 °C | +5.2 °C | 96 mm | -81 mm |
| Jul | 21.1 °C | -0.3 °C | 248 mm | +73 mm |
| Aug | 23.0 °C | +2.0 °C | 186 mm | +21 mm |
| Sep | 18.0 °C | +0.3 °C | 177 mm | +54 mm |
| Oct | 12.8 °C | -0.1 °C | 99 mm | -1 mm |
| Nov | 8.2 °C | +1.7 °C | 101 mm | -13 mm |
| Dec | 5.3 °C | +2.9 °C | 32 mm | -80 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 Dornbirn?
Dornbirn has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.8 °C and it receives 1,555 mm of precipitation per year.
What is the hottest day ever recorded in Dornbirn?
The hottest day measured in Dornbirn between 1940 and 2025 was 28 July 2013, reaching 33.2 °C.
What is the coldest day in Dornbirn?
The coldest day measured in Dornbirn between 1940 and 2025 was 7 January 1985, at -28.9 °C.
Does it snow in Dornbirn?
Yes. Dornbirn gets on average 214.4 cm of snow per year and has around 106 frost days.
Has the climate of Dornbirn warmed?
Yes: Dornbirn warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dornbirn?
The wettest day measured in Dornbirn between 1940 and 2025 was 20 July 1976, with 83 mm of rain in 24 hours.
What was the windiest day in Dornbirn?
The windiest day measured in Dornbirn between 1940 and 2025 was 26 December 1999, with winds reaching 33.7 km/h.
What is the warmest month in Dornbirn?
The warmest month in Dornbirn is July (17.1 °C on average); the coldest is January (-1.9 °C).
How much does it rain in Dornbirn?
Dornbirn receives on average 1,555 mm of precipitation per year, spread over about 175 rainy days.
Is it sunny in Dornbirn?
Dornbirn 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 Dornbirn?
The heaviest 24-hour snowfall measured in Dornbirn between 1940 and 2025 was 11 January 1954, with 28.6 cm.
Are there tropical nights in Dornbirn?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Dornbirn.
What was the most extreme apparent temperature in Dornbirn?
In Dornbirn, between 1940 and 2025, the highest apparent temperature reached 37.9 °C on 6 July 1957, and the lowest was -33.7 °C on 7 January 1985.
Compare Dornbirn with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dornbirn