Sonsbeck climate — normals and trends
Sonsbeck (Germany) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.2 °C and it receives 781 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 (18.2 °C on average) and the coldest is January (2.3 °C). Rainfall peaks in July.
Sonsbeck averages 47 frost days, 4 hot days (≥ 30 °C) and 148 rainy days per year.
Sonsbeck 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 62 to 32 per year over the period.
The hottest day of the period reached 39.4 °C (on 25 July 2019) and the coldest -23.7 °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
SonsbeckNorth Rhine-Westphalia
- coords
- 51.61°, 6.38°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.2°C
Average daily high
13.6°C
Average daily low
7.0°C
Annual rainfall
781mm
Sunshine / day
7.4h
Mean relative humidity
79%
Average peak wind
18.0km/h
Seasonal range
15.9°C
Frost days (< 0 °C)
47 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
148 d/yr
Annual snowfall
21.8 cm
Average feels-like high
11.2 °C
Average feels-like low
4.2 °C
Average peak gust
36.7 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.45 · 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
39.4 °C
25 July 2019
Coldest day
-23.7 °C
27 January 1942
Wettest day
54 mm
22 June 2023
Windiest day
55.5 km/h
13 November 1972
Strongest gust
123.5 km/h
18 January 2007
Hottest feels-like
40.6 °C
25 July 2019
Coldest feels-like
-29.1 °C
27 January 1942
Snowiest day
14.9 cm
7 February 2021
Sunniest day
15.6 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 | 5.4 °C | +1.0 °C | 132 mm | +67 mm |
| Feb | 7.1 °C | +1.5 °C | 35 mm | -22 mm |
| Mar | 13.3 °C | +3.9 °C | 10 mm | -51 mm |
| Apr | 17.1 °C | +3.6 °C | 62 mm | +9 mm |
| May | 20.3 °C | +2.6 °C | 39 mm | -26 mm |
| Jun | 24.3 °C | +3.7 °C | 64 mm | -7 mm |
| Jul | 24.7 °C | +2.4 °C | 85 mm | +9 mm |
| Aug | 25.3 °C | +3.2 °C | 36 mm | -36 mm |
| Sep | 20.2 °C | +1.3 °C | 91 mm | +29 mm |
| Oct | 14.3 °C | +0.1 °C | 89 mm | +27 mm |
| Nov | 10.5 °C | +1.8 °C | 66 mm | -2 mm |
| Dec | 8.1 °C | +2.6 °C | 33 mm | -39 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 Sonsbeck?
Sonsbeck has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.2 °C and it receives 781 mm of precipitation per year.
What is the hottest day ever recorded in Sonsbeck?
The hottest day measured in Sonsbeck between 1940 and 2025 was 25 July 2019, reaching 39.4 °C.
What is the coldest day in Sonsbeck?
The coldest day measured in Sonsbeck between 1940 and 2025 was 27 January 1942, at -23.7 °C.
Does it snow in Sonsbeck?
Yes. Sonsbeck gets on average 21.8 cm of snow per year and has around 47 frost days.
Has the climate of Sonsbeck warmed?
Yes: Sonsbeck warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sonsbeck?
The wettest day measured in Sonsbeck between 1940 and 2025 was 22 June 2023, with 54 mm of rain in 24 hours.
What was the windiest day in Sonsbeck?
The windiest day measured in Sonsbeck between 1940 and 2025 was 13 November 1972, with winds reaching 55.5 km/h.
What is the warmest month in Sonsbeck?
The warmest month in Sonsbeck is July (18.2 °C on average); the coldest is January (2.3 °C).
How much does it rain in Sonsbeck?
Sonsbeck receives on average 781 mm of precipitation per year, spread over about 148 rainy days.
Is it sunny in Sonsbeck?
Sonsbeck gets on average 7.4 hours of sunshine per day, roughly 2,701 hours per year over 1940-2025.
What is the biggest single-day snowfall in Sonsbeck?
The heaviest 24-hour snowfall measured in Sonsbeck between 1940 and 2025 was 7 February 2021, with 14.9 cm.
Are there tropical nights in Sonsbeck?
Yes: Sonsbeck has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sonsbeck?
In Sonsbeck, between 1940 and 2025, the highest apparent temperature reached 40.6 °C on 25 July 2019, and the lowest was -29.1 °C on 27 January 1942.
Compare Sonsbeck with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sonsbeck