Grimmen climate — normals and trends
Grimmen (Germany) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.5 °C and it receives 670 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 (17.5 °C on average) and the coldest is January (-0.2 °C). Rainfall peaks in July.
Grimmen averages 79 frost days, 2 hot days (≥ 30 °C) and 137 rainy days per year.
Grimmen 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 100 to 58 per year over the period.
The hottest day of the period reached 35.8 °C (on 8 August 2018) and the coldest -27.8 °C (on 16 February 1956).
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
GrimmenMecklenburg-Vorpommern
- coords
- 54.11°, 13.04°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.5°C
Average daily high
11.8°C
Average daily low
5.3°C
Annual rainfall
670mm
Sunshine / day
7.8h
Mean relative humidity
81%
Average peak wind
18.5km/h
Seasonal range
17.7°C
Frost days (< 0 °C)
79 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
137 d/yr
Annual snowfall
43.8 cm
Average feels-like high
9.2 °C
Average feels-like low
2.2 °C
Average peak gust
37.9 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.6 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
35.8 °C
8 August 2018
Coldest day
-27.8 °C
16 February 1956
Wettest day
56 mm
28 June 1991
Windiest day
54.9 km/h
14 January 1993
Strongest gust
112.3 km/h
14 January 1993
Hottest feels-like
37.2 °C
1 August 1994
Coldest feels-like
-32.7 °C
16 February 1956
Snowiest day
26.3 cm
10 April 1970
Sunniest day
16.1 h
29 June 2019
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 | +2.4 °C | 58 mm | +10 mm |
| Feb | 4.3 °C | +1.5 °C | 23 mm | -17 mm |
| Mar | 10.6 °C | +4.0 °C | 13 mm | -32 mm |
| Apr | 15.5 °C | +4.0 °C | 17 mm | -34 mm |
| May | 16.9 °C | +0.6 °C | 52 mm | -10 mm |
| Jun | 21.8 °C | +2.1 °C | 72 mm | -0 mm |
| Jul | 23.0 °C | +1.4 °C | 172 mm | +91 mm |
| Aug | 22.8 °C | +1.4 °C | 52 mm | -22 mm |
| Sep | 19.8 °C | +2.0 °C | 69 mm | +14 mm |
| Oct | 12.9 °C | +0.4 °C | 77 mm | +31 mm |
| Nov | 7.8 °C | +1.1 °C | 42 mm | -5 mm |
| Dec | 5.7 °C | +2.4 °C | 18 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 Grimmen?
Grimmen has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.5 °C and it receives 670 mm of precipitation per year.
What is the hottest day ever recorded in Grimmen?
The hottest day measured in Grimmen between 1940 and 2025 was 8 August 2018, reaching 35.8 °C.
What is the coldest day in Grimmen?
The coldest day measured in Grimmen between 1940 and 2025 was 16 February 1956, at -27.8 °C.
Does it snow in Grimmen?
Yes. Grimmen gets on average 43.8 cm of snow per year and has around 79 frost days.
Has the climate of Grimmen warmed?
Yes: Grimmen warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Grimmen?
The wettest day measured in Grimmen between 1940 and 2025 was 28 June 1991, with 56 mm of rain in 24 hours.
What was the windiest day in Grimmen?
The windiest day measured in Grimmen between 1940 and 2025 was 14 January 1993, with winds reaching 54.9 km/h.
What is the warmest month in Grimmen?
The warmest month in Grimmen is July (17.5 °C on average); the coldest is January (-0.2 °C).
How much does it rain in Grimmen?
Grimmen receives on average 670 mm of precipitation per year, spread over about 137 rainy days.
Is it sunny in Grimmen?
Grimmen 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 Grimmen?
The heaviest 24-hour snowfall measured in Grimmen between 1940 and 2025 was 10 April 1970, with 26.3 cm.
Are there tropical nights in Grimmen?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Grimmen.
What was the most extreme apparent temperature in Grimmen?
In Grimmen, between 1940 and 2025, the highest apparent temperature reached 37.2 °C on 1 August 1994, and the lowest was -32.7 °C on 16 February 1956.
Compare Grimmen with another city
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Nearby cities
The climate around Grimmen