Nancy climate — normals and trends
Nancy (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.1 °C and it receives 841 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 (18.9 °C on average) and the coldest is January (1.5 °C). Rainfall peaks in May.
Nancy averages 61 frost days, 8 hot days (≥ 30 °C) and 147 rainy days per year.
Nancy 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 74 to 48 per year over the period.
The hottest day of the period reached 39.8 °C (on 25 July 2019) and the coldest -19.4 °C (on 11 January 1945).
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
NancyGrand Est
- coords
- 48.68°, 6.18°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.1°C
Average daily high
13.9°C
Average daily low
6.5°C
Annual rainfall
841mm
Sunshine / day
7.6h
Mean relative humidity
78%
Average peak wind
18.2km/h
Seasonal range
17.4°C
Frost days (< 0 °C)
61 d/yr
Hot days (≥ 30 °C)
8 d/yr
Rainy days (≥ 1 mm)
147 d/yr
Annual snowfall
29.5 cm
Average feels-like high
11.5 °C
Average feels-like low
3.7 °C
Average peak gust
35.8 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
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.39 · 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
-19.4 °C
11 January 1945
Wettest day
70 mm
16 September 1986
Windiest day
69.2 km/h
26 December 1999
Strongest gust
136.1 km/h
26 December 1999
Hottest feels-like
39.6 °C
2 July 2025
Coldest feels-like
-26.6 °C
10 February 1956
Snowiest day
14.4 cm
28 December 1985
Sunniest day
15.2 h
29 June 2019
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 | +2.4 °C | 108 mm | +38 mm |
| Feb | 6.8 °C | +1.1 °C | 50 mm | -14 mm |
| Mar | 13.1 °C | +3.2 °C | 30 mm | -36 mm |
| Apr | 17.2 °C | +3.4 °C | 64 mm | 0 mm |
| May | 20.3 °C | +2.3 °C | 41 mm | -38 mm |
| Jun | 26.4 °C | +5.0 °C | 53 mm | -22 mm |
| Jul | 24.8 °C | +1.1 °C | 90 mm | +24 mm |
| Aug | 26.4 °C | +3.0 °C | 83 mm | +12 mm |
| Sep | 19.4 °C | -0.3 °C | 177 mm | +109 mm |
| Oct | 14.6 °C | +0.3 °C | 79 mm | +12 mm |
| Nov | 10.0 °C | +1.9 °C | 63 mm | -12 mm |
| Dec | 7.5 °C | +2.7 °C | 34 mm | -44 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 Nancy?
Nancy has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.1 °C and it receives 841 mm of precipitation per year.
What is the hottest day ever recorded in Nancy?
The hottest day measured in Nancy between 1940 and 2025 was 25 July 2019, reaching 39.8 °C.
What is the coldest day in Nancy?
The coldest day measured in Nancy between 1940 and 2025 was 11 January 1945, at -19.4 °C.
Does it snow in Nancy?
Yes. Nancy gets on average 29.5 cm of snow per year and has around 61 frost days.
Has the climate of Nancy warmed?
Yes: Nancy warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nancy?
The wettest day measured in Nancy between 1940 and 2025 was 16 September 1986, with 70 mm of rain in 24 hours.
What was the windiest day in Nancy?
The windiest day measured in Nancy between 1940 and 2025 was 26 December 1999, with winds reaching 69.2 km/h.
What is the warmest month in Nancy?
The warmest month in Nancy is July (18.9 °C on average); the coldest is January (1.5 °C).
How much does it rain in Nancy?
Nancy receives on average 841 mm of precipitation per year, spread over about 147 rainy days.
Is it sunny in Nancy?
Nancy 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 Nancy?
The heaviest 24-hour snowfall measured in Nancy between 1940 and 2025 was 28 December 1985, with 14.4 cm.
Are there tropical nights in Nancy?
Yes: Nancy has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Nancy?
In Nancy, between 1940 and 2025, the highest apparent temperature reached 39.6 °C on 2 July 2025, and the lowest was -26.6 °C on 10 February 1956.
Compare Nancy with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nancy