Granville climate — normals and trends
Granville (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.5 °C and it receives 1,102 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 August (17.4 °C on average) and the coldest is January (6.1 °C). Rainfall peaks in December.
Granville averages 7 frost days, 0 hot days (≥ 30 °C) and 165 rainy days per year.
Granville has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The number of frost days there went from about 12 to 2 per year over the period.
The hottest day of the period reached 33.7 °C (on 5 August 2003) and the coldest -9.2 °C (on 17 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
GranvilleNormandy
- coords
- 48.84°, -1.60°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.5°C
Average daily high
13.3°C
Average daily low
9.8°C
Annual rainfall
1,102mm
Sunshine / day
8.6h
Mean relative humidity
81%
Average peak wind
25.7km/h
Seasonal range
11.3°C
Frost days (< 0 °C)
7 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
165 d/yr
Annual snowfall
6.1 cm
Average feels-like high
10.9 °C
Average feels-like low
6.3 °C
Average peak gust
39.5 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
12.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.31 · 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
33.7 °C
5 August 2003
Coldest day
-9.2 °C
17 January 1985
Wettest day
61 mm
13 November 2010
Windiest day
77.6 km/h
9 October 1964
Strongest gust
123.1 km/h
21 October 2021
Hottest feels-like
36.5 °C
5 August 2003
Coldest feels-like
-17.5 °C
19 January 1963
Snowiest day
9.5 cm
21 January 1945
Sunniest day
15.9 h
19 June 1940
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 | 7.7 °C | +0.1 °C | 214 mm | +100 mm |
| Feb | 8.5 °C | +0.6 °C | 61 mm | -30 mm |
| Mar | 11.1 °C | +1.4 °C | 28 mm | -53 mm |
| Apr | 14.8 °C | +3.2 °C | 46 mm | -21 mm |
| May | 16.4 °C | +1.9 °C | 31 mm | -42 mm |
| Jun | 20.1 °C | +3.0 °C | 50 mm | -11 mm |
| Jul | 20.2 °C | +1.2 °C | 159 mm | +93 mm |
| Aug | 21.4 °C | +2.0 °C | 52 mm | -23 mm |
| Sep | 18.4 °C | +0.3 °C | 75 mm | -17 mm |
| Oct | 15.7 °C | +0.5 °C | 156 mm | +38 mm |
| Nov | 12.6 °C | +1.5 °C | 102 mm | -31 mm |
| Dec | 9.5 °C | +0.8 °C | 105 mm | -29 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 Granville?
Granville has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.5 °C and it receives 1,102 mm of precipitation per year.
What is the hottest day ever recorded in Granville?
The hottest day measured in Granville between 1940 and 2025 was 5 August 2003, reaching 33.7 °C.
What is the coldest day in Granville?
The coldest day measured in Granville between 1940 and 2025 was 17 January 1985, at -9.2 °C.
Does it snow in Granville?
Yes. Granville gets on average 6.1 cm of snow per year and has around 7 frost days.
Has the climate of Granville warmed?
Yes: Granville warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Granville?
The wettest day measured in Granville between 1940 and 2025 was 13 November 2010, with 61 mm of rain in 24 hours.
What was the windiest day in Granville?
The windiest day measured in Granville between 1940 and 2025 was 9 October 1964, with winds reaching 77.6 km/h.
What is the warmest month in Granville?
The warmest month in Granville is August (17.4 °C on average); the coldest is January (6.1 °C).
How much does it rain in Granville?
Granville receives on average 1,102 mm of precipitation per year, spread over about 165 rainy days.
Is it sunny in Granville?
Granville gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.
What is the biggest single-day snowfall in Granville?
The heaviest 24-hour snowfall measured in Granville between 1940 and 2025 was 21 January 1945, with 9.5 cm.
Are there tropical nights in Granville?
Yes: Granville has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Granville?
In Granville, between 1940 and 2025, the highest apparent temperature reached 36.5 °C on 5 August 2003, and the lowest was -17.5 °C on 19 January 1963.
Compare Granville with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Granville