Châlons-en-Champagne climate — normals and trends
Châlons-en-Champagne (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.5 °C and it receives 748 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 (18.8 °C on average) and the coldest is January (2.6 °C). Rainfall peaks in December.
Châlons-en-Champagne averages 51 frost days, 6 hot days (≥ 30 °C) and 137 rainy days per year.
Châlons-en-Champagne 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 64 to 38 per year over the period.
The hottest day of the period reached 41.8 °C (on 25 July 2019) and the coldest -21.8 °C (on 16 January 1985).
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
Châlons-en-ChampagneGrand Est
- coords
- 48.95°, 4.37°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.5°C
Average daily high
14.3°C
Average daily low
6.9°C
Annual rainfall
748mm
Sunshine / day
7.8h
Mean relative humidity
79%
Average peak wind
17.7km/h
Seasonal range
16.2°C
Frost days (< 0 °C)
51 d/yr
Hot days (≥ 30 °C)
6 d/yr
Rainy days (≥ 1 mm)
137 d/yr
Annual snowfall
17.8 cm
Average feels-like high
12.1 °C
Average feels-like low
4.3 °C
Average peak gust
35.8 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
11.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.40 · 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
41.8 °C
25 July 2019
Coldest day
-21.8 °C
16 January 1985
Wettest day
50 mm
7 August 1965
Windiest day
64.5 km/h
26 December 1999
Strongest gust
133.9 km/h
26 December 1999
Hottest feels-like
40.9 °C
2 July 2025
Coldest feels-like
-26.8 °C
16 January 1985
Snowiest day
13.8 cm
9 January 1968
Sunniest day
15.5 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 | 6.5 °C | +1.6 °C | 117 mm | +56 mm |
| Feb | 7.1 °C | +0.6 °C | 44 mm | -13 mm |
| Mar | 13.9 °C | +3.4 °C | 14 mm | -43 mm |
| Apr | 18.1 °C | +4.0 °C | 40 mm | -18 mm |
| May | 20.6 °C | +2.6 °C | 32 mm | -37 mm |
| Jun | 26.4 °C | +5.1 °C | 65 mm | +2 mm |
| Jul | 24.7 °C | +1.3 °C | 126 mm | +66 mm |
| Aug | 25.5 °C | +2.3 °C | 53 mm | -6 mm |
| Sep | 20.0 °C | +0.1 °C | 105 mm | +48 mm |
| Oct | 15.4 °C | +0.6 °C | 69 mm | +4 mm |
| Nov | 10.7 °C | +1.7 °C | 60 mm | -8 mm |
| Dec | 8.4 °C | +2.6 °C | 35 mm | -37 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 Châlons-en-Champagne?
Châlons-en-Champagne has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.5 °C and it receives 748 mm of precipitation per year.
What is the hottest day ever recorded in Châlons-en-Champagne?
The hottest day measured in Châlons-en-Champagne between 1940 and 2025 was 25 July 2019, reaching 41.8 °C.
What is the coldest day in Châlons-en-Champagne?
The coldest day measured in Châlons-en-Champagne between 1940 and 2025 was 16 January 1985, at -21.8 °C.
Does it snow in Châlons-en-Champagne?
Yes. Châlons-en-Champagne gets on average 17.8 cm of snow per year and has around 51 frost days.
Has the climate of Châlons-en-Champagne warmed?
Yes: Châlons-en-Champagne warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Châlons-en-Champagne?
The wettest day measured in Châlons-en-Champagne between 1940 and 2025 was 7 August 1965, with 50 mm of rain in 24 hours.
What was the windiest day in Châlons-en-Champagne?
The windiest day measured in Châlons-en-Champagne between 1940 and 2025 was 26 December 1999, with winds reaching 64.5 km/h.
What is the warmest month in Châlons-en-Champagne?
The warmest month in Châlons-en-Champagne is July (18.8 °C on average); the coldest is January (2.6 °C).
How much does it rain in Châlons-en-Champagne?
Châlons-en-Champagne receives on average 748 mm of precipitation per year, spread over about 137 rainy days.
Is it sunny in Châlons-en-Champagne?
Châlons-en-Champagne 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 Châlons-en-Champagne?
The heaviest 24-hour snowfall measured in Châlons-en-Champagne between 1940 and 2025 was 9 January 1968, with 13.8 cm.
Are there tropical nights in Châlons-en-Champagne?
Yes: Châlons-en-Champagne has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Châlons-en-Champagne?
In Châlons-en-Champagne, between 1940 and 2025, the highest apparent temperature reached 40.9 °C on 2 July 2025, and the lowest was -26.8 °C on 16 January 1985.
Compare Châlons-en-Champagne with another city
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Nearby cities
The climate around Châlons-en-Champagne