Bar-le-Duc climate — normals and trends
Bar-le-Duc (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.1 °C and it receives 940 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 (1.8 °C). Rainfall peaks in December.
Bar-le-Duc averages 55 frost days, 5 hot days (≥ 30 °C) and 150 rainy days per year.
Bar-le-Duc has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The number of frost days there went from about 68 to 42 per year over the period.
The hottest day of the period reached 39.8 °C (on 25 July 2019) and the coldest -19.5 °C (on 8 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
Bar-le-DucGrand Est
- coords
- 48.77°, 5.16°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.1°C
Average daily high
13.7°C
Average daily low
6.7°C
Annual rainfall
940mm
Sunshine / day
7.6h
Mean relative humidity
79%
Average peak wind
18.5km/h
Seasonal range
16.7°C
Frost days (< 0 °C)
55 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
150 d/yr
Annual snowfall
31.5 cm
Average feels-like high
11.4 °C
Average feels-like low
3.8 °C
Average peak gust
37.1 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
11.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.37 · 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
39.8 °C
25 July 2019
Coldest day
-19.5 °C
8 January 1985
Wettest day
57 mm
18 June 1966
Windiest day
66.0 km/h
26 December 1999
Strongest gust
144.0 km/h
26 December 1999
Hottest feels-like
39.5 °C
24 July 2019
Coldest feels-like
-25.9 °C
10 February 1956
Snowiest day
14.4 cm
9 January 1968
Sunniest day
15.3 h
3 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 | 6.1 °C | +2.1 °C | 129 mm | +40 mm |
| Feb | 7.0 °C | +1.3 °C | 46 mm | -33 mm |
| Mar | 13.3 °C | +3.5 °C | 25 mm | -51 mm |
| Apr | 17.2 °C | +3.6 °C | 51 mm | -18 mm |
| May | 19.9 °C | +2.3 °C | 31 mm | -49 mm |
| Jun | 25.9 °C | +5.1 °C | 51 mm | -22 mm |
| Jul | 24.0 °C | +1.0 °C | 99 mm | +32 mm |
| Aug | 25.9 °C | +3.2 °C | 64 mm | -5 mm |
| Sep | 19.4 °C | +0.1 °C | 168 mm | +97 mm |
| Oct | 14.7 °C | +0.5 °C | 116 mm | +40 mm |
| Nov | 10.4 °C | +2.2 °C | 77 mm | -13 mm |
| Dec | 7.8 °C | +2.8 °C | 50 mm | -49 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 Bar-le-Duc?
Bar-le-Duc has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.1 °C and it receives 940 mm of precipitation per year.
What is the hottest day ever recorded in Bar-le-Duc?
The hottest day measured in Bar-le-Duc between 1940 and 2025 was 25 July 2019, reaching 39.8 °C.
What is the coldest day in Bar-le-Duc?
The coldest day measured in Bar-le-Duc between 1940 and 2025 was 8 January 1985, at -19.5 °C.
Does it snow in Bar-le-Duc?
Yes. Bar-le-Duc gets on average 31.5 cm of snow per year and has around 55 frost days.
Has the climate of Bar-le-Duc warmed?
Yes: Bar-le-Duc warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bar-le-Duc?
The wettest day measured in Bar-le-Duc between 1940 and 2025 was 18 June 1966, with 57 mm of rain in 24 hours.
What was the windiest day in Bar-le-Duc?
The windiest day measured in Bar-le-Duc between 1940 and 2025 was 26 December 1999, with winds reaching 66.0 km/h.
What is the warmest month in Bar-le-Duc?
The warmest month in Bar-le-Duc is July (18.5 °C on average); the coldest is January (1.8 °C).
How much does it rain in Bar-le-Duc?
Bar-le-Duc receives on average 940 mm of precipitation per year, spread over about 150 rainy days.
Is it sunny in Bar-le-Duc?
Bar-le-Duc gets on average 7.6 hours of sunshine per day, roughly 2,774 hours per year over 1940-2025.
What is the biggest single-day snowfall in Bar-le-Duc?
The heaviest 24-hour snowfall measured in Bar-le-Duc between 1940 and 2025 was 9 January 1968, with 14.4 cm.
Are there tropical nights in Bar-le-Duc?
Yes: Bar-le-Duc has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bar-le-Duc?
In Bar-le-Duc, between 1940 and 2025, the highest apparent temperature reached 39.5 °C on 24 July 2019, and the lowest was -25.9 °C on 10 February 1956.
Compare Bar-le-Duc with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bar-le-Duc