Florennes climate — normals and trends
Florennes (Belgium) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.5 °C and it receives 818 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 (1.9 °C). Rainfall peaks in July.
Florennes averages 56 frost days, 2 hot days (≥ 30 °C) and 152 rainy days per year.
Florennes has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The number of frost days there went from about 72 to 40 per year over the period.
The hottest day of the period reached 36.5 °C (on 19 July 2022) and the coldest -23.4 °C (on 22 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
FlorennesWallonia
- coords
- 50.25°, 4.61°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.5°C
Average daily high
12.8°C
Average daily low
6.2°C
Annual rainfall
818mm
Sunshine / day
7.4h
Mean relative humidity
82%
Average peak wind
19.8km/h
Seasonal range
15.3°C
Frost days (< 0 °C)
56 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
152 d/yr
Annual snowfall
29.1 cm
Average feels-like high
10.3 °C
Average feels-like low
3.2 °C
Average peak gust
38.7 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.41 · 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
36.5 °C
19 July 2022
Coldest day
-23.4 °C
22 January 1942
Wettest day
82 mm
22 June 2023
Windiest day
56.7 km/h
24 November 1984
Strongest gust
126.0 km/h
24 November 1984
Hottest feels-like
38.7 °C
25 July 2019
Coldest feels-like
-29.1 °C
22 January 1942
Snowiest day
13.6 cm
20 November 1988
Sunniest day
15.7 h
2 July 2006
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 | 4.8 °C | +0.8 °C | 175 mm | +108 mm |
| Feb | 6.5 °C | +1.2 °C | 48 mm | -13 mm |
| Mar | 12.7 °C | +3.6 °C | 17 mm | -49 mm |
| Apr | 16.7 °C | +4.1 °C | 31 mm | -31 mm |
| May | 18.7 °C | +2.2 °C | 57 mm | -17 mm |
| Jun | 23.4 °C | +4.0 °C | 77 mm | +2 mm |
| Jul | 23.2 °C | +1.9 °C | 90 mm | +14 mm |
| Aug | 23.6 °C | +2.5 °C | 36 mm | -34 mm |
| Sep | 18.8 °C | +0.7 °C | 85 mm | +25 mm |
| Oct | 13.8 °C | +0.2 °C | 79 mm | +15 mm |
| Nov | 9.7 °C | +1.6 °C | 70 mm | +0 mm |
| Dec | 7.7 °C | +2.7 °C | 32 mm | -40 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 Florennes?
Florennes has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.5 °C and it receives 818 mm of precipitation per year.
What is the hottest day ever recorded in Florennes?
The hottest day measured in Florennes between 1940 and 2025 was 19 July 2022, reaching 36.5 °C.
What is the coldest day in Florennes?
The coldest day measured in Florennes between 1940 and 2025 was 22 January 1942, at -23.4 °C.
Does it snow in Florennes?
Yes. Florennes gets on average 29.1 cm of snow per year and has around 56 frost days.
Has the climate of Florennes warmed?
Yes: Florennes warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Florennes?
The wettest day measured in Florennes between 1940 and 2025 was 22 June 2023, with 82 mm of rain in 24 hours.
What was the windiest day in Florennes?
The windiest day measured in Florennes between 1940 and 2025 was 24 November 1984, with winds reaching 56.7 km/h.
What is the warmest month in Florennes?
The warmest month in Florennes is July (17.2 °C on average); the coldest is January (1.9 °C).
How much does it rain in Florennes?
Florennes receives on average 818 mm of precipitation per year, spread over about 152 rainy days.
Is it sunny in Florennes?
Florennes gets on average 7.4 hours of sunshine per day, roughly 2,701 hours per year over 1940-2025.
What is the biggest single-day snowfall in Florennes?
The heaviest 24-hour snowfall measured in Florennes between 1940 and 2025 was 20 November 1988, with 13.6 cm.
Are there tropical nights in Florennes?
Yes: Florennes has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Florennes?
In Florennes, between 1940 and 2025, the highest apparent temperature reached 38.7 °C on 25 July 2019, and the lowest was -29.1 °C on 22 January 1942.
Compare Florennes with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Florennes