Bad Wünnenberg climate — normals and trends
Bad Wünnenberg (Germany) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.3 °C and it receives 904 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 (16.5 °C on average) and the coldest is January (-0.1 °C). Rainfall peaks in July.
Bad Wünnenberg averages 76 frost days, 2 hot days (≥ 30 °C) and 166 rainy days per year.
Bad Wünnenberg has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 94 to 58 per year over the period.
The hottest day of the period reached 35.6 °C (on 25 July 2019) and the coldest -24.0 °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
Bad WünnenbergNorth Rhine-Westphalia
- coords
- 51.52°, 8.70°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.3°C
Average daily high
11.6°C
Average daily low
5.1°C
Annual rainfall
904mm
Sunshine / day
7.2h
Mean relative humidity
81%
Average peak wind
18.7km/h
Seasonal range
16.6°C
Frost days (< 0 °C)
76 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
166 d/yr
Annual snowfall
67.6 cm
Average feels-like high
8.9 °C
Average feels-like low
1.9 °C
Average peak gust
38.7 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.44 · 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
35.6 °C
25 July 2019
Coldest day
-24.0 °C
27 January 1942
Wettest day
51 mm
27 September 1956
Windiest day
58.3 km/h
18 January 2018
Strongest gust
129.2 km/h
18 January 2007
Hottest feels-like
38.6 °C
14 August 2025
Coldest feels-like
-29.4 °C
27 January 1942
Snowiest day
16.7 cm
7 February 2021
Sunniest day
15.6 h
20 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 | 3.9 °C | +2.0 °C | 117 mm | +48 mm |
| Feb | 4.6 °C | +1.5 °C | 34 mm | -28 mm |
| Mar | 11.5 °C | +4.4 °C | 17 mm | -52 mm |
| Apr | 15.4 °C | +3.8 °C | 85 mm | +16 mm |
| May | 18.3 °C | +2.4 °C | 46 mm | -37 mm |
| Jun | 22.8 °C | +3.9 °C | 73 mm | -16 mm |
| Jul | 22.8 °C | +2.1 °C | 86 mm | -8 mm |
| Aug | 24.0 °C | +3.4 °C | 41 mm | -49 mm |
| Sep | 18.9 °C | +1.8 °C | 69 mm | -3 mm |
| Oct | 11.8 °C | -0.4 °C | 83 mm | +19 mm |
| Nov | 8.1 °C | +1.6 °C | 55 mm | -16 mm |
| Dec | 5.9 °C | +2.7 °C | 33 mm | -41 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 Bad Wünnenberg?
Bad Wünnenberg has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.3 °C and it receives 904 mm of precipitation per year.
What is the hottest day ever recorded in Bad Wünnenberg?
The hottest day measured in Bad Wünnenberg between 1940 and 2025 was 25 July 2019, reaching 35.6 °C.
What is the coldest day in Bad Wünnenberg?
The coldest day measured in Bad Wünnenberg between 1940 and 2025 was 27 January 1942, at -24.0 °C.
Does it snow in Bad Wünnenberg?
Yes. Bad Wünnenberg gets on average 67.6 cm of snow per year and has around 76 frost days.
Has the climate of Bad Wünnenberg warmed?
Yes: Bad Wünnenberg warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bad Wünnenberg?
The wettest day measured in Bad Wünnenberg between 1940 and 2025 was 27 September 1956, with 51 mm of rain in 24 hours.
What was the windiest day in Bad Wünnenberg?
The windiest day measured in Bad Wünnenberg between 1940 and 2025 was 18 January 2018, with winds reaching 58.3 km/h.
What is the warmest month in Bad Wünnenberg?
The warmest month in Bad Wünnenberg is July (16.5 °C on average); the coldest is January (-0.1 °C).
How much does it rain in Bad Wünnenberg?
Bad Wünnenberg receives on average 904 mm of precipitation per year, spread over about 166 rainy days.
Is it sunny in Bad Wünnenberg?
Bad Wünnenberg gets on average 7.2 hours of sunshine per day, roughly 2,628 hours per year over 1940-2025.
What is the biggest single-day snowfall in Bad Wünnenberg?
The heaviest 24-hour snowfall measured in Bad Wünnenberg between 1940 and 2025 was 7 February 2021, with 16.7 cm.
Are there tropical nights in Bad Wünnenberg?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Bad Wünnenberg.
What was the most extreme apparent temperature in Bad Wünnenberg?
In Bad Wünnenberg, between 1940 and 2025, the highest apparent temperature reached 38.6 °C on 14 August 2025, and the lowest was -29.4 °C on 27 January 1942.
Compare Bad Wünnenberg with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bad Wünnenberg