Aldenhoven climate — normals and trends
Aldenhoven (Germany) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.1 °C and it receives 729 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 (18.1 °C on average) and the coldest is January (2.2 °C). Rainfall peaks in July.
Aldenhoven averages 51 frost days, 4 hot days (≥ 30 °C) and 146 rainy days per year.
Aldenhoven has warmed by +2.1 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The number of frost days there went from about 66 to 36 per year over the period.
The hottest day of the period reached 41.1 °C (on 25 July 2019) and the coldest -23.0 °C (on 27 January 1942).
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
AldenhovenNorth Rhine-Westphalia
- coords
- 50.90°, 6.28°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.1°C
Average daily high
13.6°C
Average daily low
6.8°C
Annual rainfall
729mm
Sunshine / day
7.6h
Mean relative humidity
78%
Average peak wind
18.5km/h
Seasonal range
15.9°C
Frost days (< 0 °C)
51 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
146 d/yr
Annual snowfall
24.4 cm
Average feels-like high
11.1 °C
Average feels-like low
4.0 °C
Average peak gust
37.7 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.2 °C per decade · r² = 0.45 · 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
41.1 °C
25 July 2019
Coldest day
-23.0 °C
27 January 1942
Wettest day
56 mm
14 July 2021
Windiest day
56.0 km/h
13 November 1972
Strongest gust
127.4 km/h
18 January 2007
Hottest feels-like
40.0 °C
25 July 2019
Coldest feels-like
-28.3 °C
27 January 1942
Snowiest day
13.0 cm
24 January 1942
Sunniest day
15.5 h
1 July 2018
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 | 5.2 °C | +0.8 °C | 131 mm | +70 mm |
| Feb | 7.0 °C | +1.4 °C | 32 mm | -23 mm |
| Mar | 13.3 °C | +3.8 °C | 13 mm | -46 mm |
| Apr | 16.7 °C | +3.3 °C | 71 mm | +17 mm |
| May | 19.9 °C | +2.3 °C | 44 mm | -18 mm |
| Jun | 24.6 °C | +4.1 °C | 60 mm | -6 mm |
| Jul | 24.9 °C | +2.6 °C | 81 mm | +12 mm |
| Aug | 25.4 °C | +3.2 °C | 27 mm | -36 mm |
| Sep | 20.1 °C | +1.2 °C | 78 mm | +23 mm |
| Oct | 14.1 °C | -0.1 °C | 78 mm | +22 mm |
| Nov | 10.7 °C | +2.1 °C | 61 mm | -3 mm |
| Dec | 8.2 °C | +2.7 °C | 33 mm | -32 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 Aldenhoven?
Aldenhoven has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.1 °C and it receives 729 mm of precipitation per year.
What is the hottest day ever recorded in Aldenhoven?
The hottest day measured in Aldenhoven between 1940 and 2025 was 25 July 2019, reaching 41.1 °C.
What is the coldest day in Aldenhoven?
The coldest day measured in Aldenhoven between 1940 and 2025 was 27 January 1942, at -23.0 °C.
Does it snow in Aldenhoven?
Yes. Aldenhoven gets on average 24.4 cm of snow per year and has around 51 frost days.
Has the climate of Aldenhoven warmed?
Yes: Aldenhoven warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Aldenhoven?
The wettest day measured in Aldenhoven between 1940 and 2025 was 14 July 2021, with 56 mm of rain in 24 hours.
What was the windiest day in Aldenhoven?
The windiest day measured in Aldenhoven between 1940 and 2025 was 13 November 1972, with winds reaching 56.0 km/h.
What is the warmest month in Aldenhoven?
The warmest month in Aldenhoven is July (18.1 °C on average); the coldest is January (2.2 °C).
How much does it rain in Aldenhoven?
Aldenhoven receives on average 729 mm of precipitation per year, spread over about 146 rainy days.
Is it sunny in Aldenhoven?
Aldenhoven gets on average 7.6 hours of sunshine per day, roughly 2,774 hours per year over 1940-2025.
What is the biggest single-day snowfall in Aldenhoven?
The heaviest 24-hour snowfall measured in Aldenhoven between 1940 and 2025 was 24 January 1942, with 13.0 cm.
Are there tropical nights in Aldenhoven?
Yes: Aldenhoven has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Aldenhoven?
In Aldenhoven, between 1940 and 2025, the highest apparent temperature reached 40.0 °C on 25 July 2019, and the lowest was -28.3 °C on 27 January 1942.
Compare Aldenhoven with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Aldenhoven