Chaumont climate — normals and trends
Chaumont (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.9 °C and it receives 996 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 (18.5 °C on average) and the coldest is January (1.5 °C). Rainfall peaks in May.
Chaumont averages 60 frost days, 5 hot days (≥ 30 °C) and 154 rainy days per year.
Chaumont has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The number of frost days there went from about 71 to 49 per year over the period.
The hottest day of the period reached 39.6 °C (on 25 July 2019) and the coldest -20.7 °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
ChaumontGrand Est
- coords
- 48.11°, 5.14°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.9°C
Average daily high
13.6°C
Average daily low
6.4°C
Annual rainfall
996mm
Sunshine / day
8.0h
Mean relative humidity
79%
Average peak wind
16.8km/h
Seasonal range
17.0°C
Frost days (< 0 °C)
60 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
154 d/yr
Annual snowfall
38.6 cm
Average feels-like high
11.5 °C
Average feels-like low
3.7 °C
Average peak gust
35.5 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
11.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.38 · 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
-20.7 °C
16 January 1985
Wettest day
68 mm
16 September 1986
Windiest day
59.0 km/h
26 December 1999
Strongest gust
140.0 km/h
26 December 1999
Hottest feels-like
39.8 °C
24 July 2019
Coldest feels-like
-27.2 °C
10 February 1956
Snowiest day
16.1 cm
28 November 1947
Sunniest day
15.2 h
2 July 2011
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 | 6.0 °C | +2.2 °C | 119 mm | +32 mm |
| Feb | 7.5 °C | +1.8 °C | 59 mm | -20 mm |
| Mar | 12.6 °C | +2.7 °C | 50 mm | -27 mm |
| Apr | 17.0 °C | +3.5 °C | 64 mm | -13 mm |
| May | 19.5 °C | +2.0 °C | 46 mm | -49 mm |
| Jun | 26.0 °C | +5.0 °C | 66 mm | -18 mm |
| Jul | 24.3 °C | +1.1 °C | 83 mm | +12 mm |
| Aug | 25.8 °C | +3.0 °C | 111 mm | +32 mm |
| Sep | 18.8 °C | -0.5 °C | 168 mm | +87 mm |
| Oct | 14.6 °C | +0.4 °C | 100 mm | +19 mm |
| Nov | 10.0 °C | +2.0 °C | 84 mm | -8 mm |
| Dec | 7.1 °C | +2.4 °C | 53 mm | -41 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 Chaumont?
Chaumont has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.9 °C and it receives 996 mm of precipitation per year.
What is the hottest day ever recorded in Chaumont?
The hottest day measured in Chaumont between 1940 and 2025 was 25 July 2019, reaching 39.6 °C.
What is the coldest day in Chaumont?
The coldest day measured in Chaumont between 1940 and 2025 was 16 January 1985, at -20.7 °C.
Does it snow in Chaumont?
Yes. Chaumont gets on average 38.6 cm of snow per year and has around 60 frost days.
Has the climate of Chaumont warmed?
Yes: Chaumont warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Chaumont?
The wettest day measured in Chaumont between 1940 and 2025 was 16 September 1986, with 68 mm of rain in 24 hours.
What was the windiest day in Chaumont?
The windiest day measured in Chaumont between 1940 and 2025 was 26 December 1999, with winds reaching 59.0 km/h.
What is the warmest month in Chaumont?
The warmest month in Chaumont is July (18.5 °C on average); the coldest is January (1.5 °C).
How much does it rain in Chaumont?
Chaumont receives on average 996 mm of precipitation per year, spread over about 154 rainy days.
Is it sunny in Chaumont?
Chaumont gets on average 8.0 hours of sunshine per day, roughly 2,920 hours per year over 1940-2025.
What is the biggest single-day snowfall in Chaumont?
The heaviest 24-hour snowfall measured in Chaumont between 1940 and 2025 was 28 November 1947, with 16.1 cm.
Are there tropical nights in Chaumont?
Yes: Chaumont has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Chaumont?
In Chaumont, between 1940 and 2025, the highest apparent temperature reached 39.8 °C on 24 July 2019, and the lowest was -27.2 °C on 10 February 1956.
Compare Chaumont with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Chaumont