Ommen climate — normals and trends
Ommen (The Netherlands) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.7 °C and it receives 763 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 (17.4 °C on average) and the coldest is January (2.0 °C). Rainfall peaks in July.
Ommen averages 55 frost days, 4 hot days (≥ 30 °C) and 148 rainy days per year.
Ommen 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 69 to 41 per year over the period.
The hottest day of the period reached 39.6 °C (on 25 July 2019) and the coldest -25.4 °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
OmmenOverijssel
- coords
- 52.52°, 6.42°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.7°C
Average daily high
13.1°C
Average daily low
6.3°C
Annual rainfall
763mm
Sunshine / day
7.5h
Mean relative humidity
81%
Average peak wind
19.5km/h
Seasonal range
15.4°C
Frost days (< 0 °C)
55 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
148 d/yr
Annual snowfall
20.9 cm
Average feels-like high
10.4 °C
Average feels-like low
3.4 °C
Average peak gust
38.5 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
+2.1 °C
since 1940
+0.2 °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
39.6 °C
25 July 2019
Coldest day
-25.4 °C
27 January 1942
Wettest day
55 mm
8 August 1970
Windiest day
61.9 km/h
25 January 1990
Strongest gust
126.0 km/h
25 January 1990
Hottest feels-like
41.5 °C
25 July 2019
Coldest feels-like
-30.8 °C
27 January 1942
Snowiest day
14.0 cm
14 February 1979
Sunniest day
16.1 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 | 5.3 °C | +1.3 °C | 77 mm | +15 mm |
| Feb | 6.2 °C | +1.1 °C | 30 mm | -22 mm |
| Mar | 12.7 °C | +4.0 °C | 10 mm | -47 mm |
| Apr | 16.8 °C | +3.9 °C | 51 mm | -2 mm |
| May | 19.8 °C | +2.6 °C | 42 mm | -23 mm |
| Jun | 22.9 °C | +3.0 °C | 85 mm | +16 mm |
| Jul | 23.3 °C | +1.8 °C | 106 mm | +24 mm |
| Aug | 23.9 °C | +2.5 °C | 42 mm | -32 mm |
| Sep | 19.3 °C | +0.9 °C | 84 mm | +22 mm |
| Oct | 14.2 °C | +0.4 °C | 107 mm | +47 mm |
| Nov | 9.7 °C | +1.3 °C | 59 mm | -4 mm |
| Dec | 7.7 °C | +2.4 °C | 28 mm | -38 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 Ommen?
Ommen has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.7 °C and it receives 763 mm of precipitation per year.
What is the hottest day ever recorded in Ommen?
The hottest day measured in Ommen between 1940 and 2025 was 25 July 2019, reaching 39.6 °C.
What is the coldest day in Ommen?
The coldest day measured in Ommen between 1940 and 2025 was 27 January 1942, at -25.4 °C.
Does it snow in Ommen?
Yes. Ommen gets on average 20.9 cm of snow per year and has around 55 frost days.
Has the climate of Ommen warmed?
Yes: Ommen warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ommen?
The wettest day measured in Ommen between 1940 and 2025 was 8 August 1970, with 55 mm of rain in 24 hours.
What was the windiest day in Ommen?
The windiest day measured in Ommen between 1940 and 2025 was 25 January 1990, with winds reaching 61.9 km/h.
What is the warmest month in Ommen?
The warmest month in Ommen is July (17.4 °C on average); the coldest is January (2.0 °C).
How much does it rain in Ommen?
Ommen receives on average 763 mm of precipitation per year, spread over about 148 rainy days.
Is it sunny in Ommen?
Ommen gets on average 7.5 hours of sunshine per day, roughly 2,738 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ommen?
The heaviest 24-hour snowfall measured in Ommen between 1940 and 2025 was 14 February 1979, with 14.0 cm.
Are there tropical nights in Ommen?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Ommen.
What was the most extreme apparent temperature in Ommen?
In Ommen, between 1940 and 2025, the highest apparent temperature reached 41.5 °C on 25 July 2019, and the lowest was -30.8 °C on 27 January 1942.
Compare Ommen with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ommen