Nieheim climate — normals and trends
Nieheim (Germany) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.6 °C and it receives 888 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 (17.0 °C on average) and the coldest is January (0.2 °C). Rainfall peaks in July.
Nieheim averages 70 frost days, 3 hot days (≥ 30 °C) and 164 rainy days per year.
Nieheim 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 88 to 52 per year over the period.
The hottest day of the period reached 36.4 °C (on 25 July 2019) and the coldest -27.4 °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
NieheimNorth Rhine-Westphalia
- coords
- 51.80°, 9.11°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.6°C
Average daily high
12.0°C
Average daily low
5.4°C
Annual rainfall
888mm
Sunshine / day
7.2h
Mean relative humidity
80%
Average peak wind
17.8km/h
Seasonal range
16.8°C
Frost days (< 0 °C)
70 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
164 d/yr
Annual snowfall
61.8 cm
Average feels-like high
9.4 °C
Average feels-like low
2.4 °C
Average peak gust
38.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.43 · 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
36.4 °C
25 July 2019
Coldest day
-27.4 °C
27 January 1942
Wettest day
52 mm
3 October 1993
Windiest day
56.2 km/h
13 November 1972
Strongest gust
130.7 km/h
18 January 2007
Hottest feels-like
38.8 °C
14 August 2025
Coldest feels-like
-32.7 °C
27 January 1942
Snowiest day
18.6 cm
7 February 2021
Sunniest day
15.7 h
20 June 2025
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 4.2 °C | +2.0 °C | 116 mm | +43 mm |
| Feb | 4.9 °C | +1.4 °C | 30 mm | -34 mm |
| Mar | 11.9 °C | +4.4 °C | 13 mm | -56 mm |
| Apr | 15.9 °C | +3.9 °C | 58 mm | -9 mm |
| May | 18.8 °C | +2.4 °C | 44 mm | -32 mm |
| Jun | 23.1 °C | +3.7 °C | 75 mm | -8 mm |
| Jul | 23.1 °C | +1.9 °C | 85 mm | -1 mm |
| Aug | 24.3 °C | +3.2 °C | 43 mm | -40 mm |
| Sep | 19.4 °C | +1.8 °C | 64 mm | -6 mm |
| Oct | 12.3 °C | -0.3 °C | 90 mm | +25 mm |
| Nov | 8.5 °C | +1.7 °C | 57 mm | -16 mm |
| Dec | 6.2 °C | +2.7 °C | 33 mm | -46 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 Nieheim?
Nieheim has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 8.6 °C and it receives 888 mm of precipitation per year.
What is the hottest day ever recorded in Nieheim?
The hottest day measured in Nieheim between 1940 and 2025 was 25 July 2019, reaching 36.4 °C.
What is the coldest day in Nieheim?
The coldest day measured in Nieheim between 1940 and 2025 was 27 January 1942, at -27.4 °C.
Does it snow in Nieheim?
Yes. Nieheim gets on average 61.8 cm of snow per year and has around 70 frost days.
Has the climate of Nieheim warmed?
Yes: Nieheim warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nieheim?
The wettest day measured in Nieheim between 1940 and 2025 was 3 October 1993, with 52 mm of rain in 24 hours.
What was the windiest day in Nieheim?
The windiest day measured in Nieheim between 1940 and 2025 was 13 November 1972, with winds reaching 56.2 km/h.
What is the warmest month in Nieheim?
The warmest month in Nieheim is July (17.0 °C on average); the coldest is January (0.2 °C).
How much does it rain in Nieheim?
Nieheim receives on average 888 mm of precipitation per year, spread over about 164 rainy days.
Is it sunny in Nieheim?
Nieheim 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 Nieheim?
The heaviest 24-hour snowfall measured in Nieheim between 1940 and 2025 was 7 February 2021, with 18.6 cm.
Are there tropical nights in Nieheim?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Nieheim.
What was the most extreme apparent temperature in Nieheim?
In Nieheim, between 1940 and 2025, the highest apparent temperature reached 38.8 °C on 14 August 2025, and the lowest was -32.7 °C on 27 January 1942.
Compare Nieheim with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nieheim