Dornheim climate — normals and trends
Dornheim (Germany) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.8 °C and it receives 693 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 (18.9 °C on average) and the coldest is January (0.7 °C). Rainfall peaks in May.
Dornheim averages 65 frost days, 7 hot days (≥ 30 °C) and 137 rainy days per year.
Dornheim has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 80 to 50 per year over the period.
The hottest day of the period reached 39.3 °C (on 25 July 2019) and the coldest -24.5 °C (on 19 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
DornheimHesse
- coords
- 49.88°, 8.48°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.8°C
Average daily high
13.5°C
Average daily low
6.3°C
Annual rainfall
693mm
Sunshine / day
7.8h
Mean relative humidity
76%
Average peak wind
15.1km/h
Seasonal range
18.2°C
Frost days (< 0 °C)
65 d/yr
Hot days (≥ 30 °C)
7 d/yr
Rainy days (≥ 1 mm)
137 d/yr
Annual snowfall
31.8 cm
Average feels-like high
11.2 °C
Average feels-like low
3.8 °C
Average peak gust
34.3 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
11.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.42 · 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
39.3 °C
25 July 2019
Coldest day
-24.5 °C
19 January 1940
Wettest day
47 mm
7 October 1982
Windiest day
48.4 km/h
18 January 2007
Strongest gust
122.0 km/h
18 January 2007
Hottest feels-like
40.6 °C
6 July 1957
Coldest feels-like
-29.8 °C
19 January 1940
Snowiest day
11.1 cm
11 January 1982
Sunniest day
15.1 h
13 June 1996
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 | 5.5 °C | +2.6 °C | 92 mm | +38 mm |
| Feb | 5.5 °C | +0.8 °C | 31 mm | -18 mm |
| Mar | 13.0 °C | +3.7 °C | 11 mm | -43 mm |
| Apr | 17.1 °C | +3.4 °C | 32 mm | -21 mm |
| May | 21.0 °C | +2.9 °C | 42 mm | -25 mm |
| Jun | 26.3 °C | +4.8 °C | 47 mm | -16 mm |
| Jul | 26.0 °C | +2.5 °C | 77 mm | +15 mm |
| Aug | 27.2 °C | +3.9 °C | 41 mm | -22 mm |
| Sep | 19.7 °C | +0.3 °C | 129 mm | +74 mm |
| Oct | 13.8 °C | +0.2 °C | 69 mm | +15 mm |
| Nov | 8.3 °C | +0.9 °C | 44 mm | -16 mm |
| Dec | 5.9 °C | +1.9 °C | 25 mm | -36 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 Dornheim?
Dornheim has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.8 °C and it receives 693 mm of precipitation per year.
What is the hottest day ever recorded in Dornheim?
The hottest day measured in Dornheim between 1940 and 2025 was 25 July 2019, reaching 39.3 °C.
What is the coldest day in Dornheim?
The coldest day measured in Dornheim between 1940 and 2025 was 19 January 1940, at -24.5 °C.
Does it snow in Dornheim?
Yes. Dornheim gets on average 31.8 cm of snow per year and has around 65 frost days.
Has the climate of Dornheim warmed?
Yes: Dornheim warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dornheim?
The wettest day measured in Dornheim between 1940 and 2025 was 7 October 1982, with 47 mm of rain in 24 hours.
What was the windiest day in Dornheim?
The windiest day measured in Dornheim between 1940 and 2025 was 18 January 2007, with winds reaching 48.4 km/h.
What is the warmest month in Dornheim?
The warmest month in Dornheim is July (18.9 °C on average); the coldest is January (0.7 °C).
How much does it rain in Dornheim?
Dornheim receives on average 693 mm of precipitation per year, spread over about 137 rainy days.
Is it sunny in Dornheim?
Dornheim 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 Dornheim?
The heaviest 24-hour snowfall measured in Dornheim between 1940 and 2025 was 11 January 1982, with 11.1 cm.
Are there tropical nights in Dornheim?
Yes: Dornheim has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Dornheim?
In Dornheim, between 1940 and 2025, the highest apparent temperature reached 40.6 °C on 6 July 1957, and the lowest was -29.8 °C on 19 January 1940.
Compare Dornheim with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dornheim