Grivegnée climate — normals and trends
Grivegnée (Belgium) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.4 °C and it receives 883 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 (17.2 °C on average) and the coldest is January (1.6 °C). Rainfall peaks in December.
Grivegnée averages 58 frost days, 3 hot days (≥ 30 °C) and 161 rainy days per year.
Grivegnée has warmed by +2.0 °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 74 to 42 per year over the period.
The hottest day of the period reached 38.5 °C (on 25 July 2019) and the coldest -22.2 °C (on 13 January 1968).
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
GrivegnéeWallonia
- coords
- 50.62°, 5.61°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.4°C
Average daily high
12.7°C
Average daily low
6.1°C
Annual rainfall
883mm
Sunshine / day
7.5h
Mean relative humidity
81%
Average peak wind
19.9km/h
Seasonal range
15.6°C
Frost days (< 0 °C)
58 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
161 d/yr
Annual snowfall
39.5 cm
Average feels-like high
10.1 °C
Average feels-like low
3.0 °C
Average peak gust
38.5 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °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
38.5 °C
25 July 2019
Coldest day
-22.2 °C
13 January 1968
Wettest day
65 mm
22 October 1986
Windiest day
58.6 km/h
24 November 1984
Strongest gust
129.2 km/h
24 November 1984
Hottest feels-like
40.0 °C
25 July 2019
Coldest feels-like
-27.9 °C
13 January 1968
Snowiest day
13.2 cm
13 December 1952
Sunniest day
15.6 h
1 July 2018
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 | 4.6 °C | +0.9 °C | 168 mm | +91 mm |
| Feb | 6.4 °C | +1.4 °C | 42 mm | -28 mm |
| Mar | 12.6 °C | +3.8 °C | 13 mm | -59 mm |
| Apr | 16.3 °C | +3.8 °C | 49 mm | -17 mm |
| May | 18.8 °C | +2.3 °C | 57 mm | -17 mm |
| Jun | 23.4 °C | +4.0 °C | 66 mm | -10 mm |
| Jul | 23.1 °C | +1.8 °C | 126 mm | +44 mm |
| Aug | 23.4 °C | +2.4 °C | 31 mm | -44 mm |
| Sep | 18.6 °C | +0.6 °C | 105 mm | +40 mm |
| Oct | 13.3 °C | -0.2 °C | 94 mm | +26 mm |
| Nov | 9.7 °C | +1.8 °C | 65 mm | -12 mm |
| Dec | 7.8 °C | +3.0 °C | 29 mm | -54 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 Grivegnée?
Grivegnée has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.4 °C and it receives 883 mm of precipitation per year.
What is the hottest day ever recorded in Grivegnée?
The hottest day measured in Grivegnée between 1940 and 2025 was 25 July 2019, reaching 38.5 °C.
What is the coldest day in Grivegnée?
The coldest day measured in Grivegnée between 1940 and 2025 was 13 January 1968, at -22.2 °C.
Does it snow in Grivegnée?
Yes. Grivegnée gets on average 39.5 cm of snow per year and has around 58 frost days.
Has the climate of Grivegnée warmed?
Yes: Grivegnée warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Grivegnée?
The wettest day measured in Grivegnée between 1940 and 2025 was 22 October 1986, with 65 mm of rain in 24 hours.
What was the windiest day in Grivegnée?
The windiest day measured in Grivegnée between 1940 and 2025 was 24 November 1984, with winds reaching 58.6 km/h.
What is the warmest month in Grivegnée?
The warmest month in Grivegnée is July (17.2 °C on average); the coldest is January (1.6 °C).
How much does it rain in Grivegnée?
Grivegnée receives on average 883 mm of precipitation per year, spread over about 161 rainy days.
Is it sunny in Grivegnée?
Grivegnée 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 Grivegnée?
The heaviest 24-hour snowfall measured in Grivegnée between 1940 and 2025 was 13 December 1952, with 13.2 cm.
Are there tropical nights in Grivegnée?
Yes: Grivegnée has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Grivegnée?
In Grivegnée, between 1940 and 2025, the highest apparent temperature reached 40.0 °C on 25 July 2019, and the lowest was -27.9 °C on 13 January 1968.
Compare Grivegnée with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Grivegnée