Mayenne climate — normals and trends
Mayenne (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.8 °C and it receives 750 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 (18.0 °C on average) and the coldest is January (3.9 °C). Rainfall peaks in November.
Mayenne averages 37 frost days, 3 hot days (≥ 30 °C) and 128 rainy days per year.
Mayenne has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The number of frost days there went from about 48 to 26 per year over the period.
The hottest day of the period reached 38.3 °C (on 18 July 2022) and the coldest -19.0 °C (on 21 January 1942).
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
MayennePays de la Loire Region
- coords
- 48.30°, -0.61°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.8°C
Average daily high
14.5°C
Average daily low
7.3°C
Annual rainfall
750mm
Sunshine / day
8.1h
Mean relative humidity
80%
Average peak wind
17.4km/h
Seasonal range
14.1°C
Frost days (< 0 °C)
37 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
128 d/yr
Annual snowfall
10.6 cm
Average feels-like high
12.4 °C
Average feels-like low
4.8 °C
Average peak gust
37.4 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
11.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.36 · 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
38.3 °C
18 July 2022
Coldest day
-19.0 °C
21 January 1942
Wettest day
44 mm
24 October 1966
Windiest day
60.9 km/h
26 December 1999
Strongest gust
133.6 km/h
26 December 1999
Hottest feels-like
39.8 °C
30 July 2024
Coldest feels-like
-23.6 °C
21 January 1942
Snowiest day
15.3 cm
4 January 1979
Sunniest day
15.9 h
21 June 1941
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 | 6.9 °C | +0.5 °C | 192 mm | +121 mm |
| Feb | 8.3 °C | +0.6 °C | 62 mm | +1 mm |
| Mar | 12.9 °C | +2.0 °C | 23 mm | -40 mm |
| Apr | 17.9 °C | +4.1 °C | 46 mm | -13 mm |
| May | 20.0 °C | +2.8 °C | 29 mm | -43 mm |
| Jun | 25.5 °C | +4.9 °C | 52 mm | -5 mm |
| Jul | 24.6 °C | +2.0 °C | 72 mm | +22 mm |
| Aug | 25.2 °C | +2.9 °C | 42 mm | -9 mm |
| Sep | 19.6 °C | 0.0 °C | 44 mm | -11 mm |
| Oct | 16.1 °C | +0.8 °C | 65 mm | -4 mm |
| Nov | 12.2 °C | +2.1 °C | 68 mm | -4 mm |
| Dec | 9.0 °C | +1.8 °C | 64 mm | -8 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 Mayenne?
Mayenne has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.8 °C and it receives 750 mm of precipitation per year.
What is the hottest day ever recorded in Mayenne?
The hottest day measured in Mayenne between 1940 and 2025 was 18 July 2022, reaching 38.3 °C.
What is the coldest day in Mayenne?
The coldest day measured in Mayenne between 1940 and 2025 was 21 January 1942, at -19.0 °C.
Does it snow in Mayenne?
Yes. Mayenne gets on average 10.6 cm of snow per year and has around 37 frost days.
Has the climate of Mayenne warmed?
Yes: Mayenne warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mayenne?
The wettest day measured in Mayenne between 1940 and 2025 was 24 October 1966, with 44 mm of rain in 24 hours.
What was the windiest day in Mayenne?
The windiest day measured in Mayenne between 1940 and 2025 was 26 December 1999, with winds reaching 60.9 km/h.
What is the warmest month in Mayenne?
The warmest month in Mayenne is July (18.0 °C on average); the coldest is January (3.9 °C).
How much does it rain in Mayenne?
Mayenne receives on average 750 mm of precipitation per year, spread over about 128 rainy days.
Is it sunny in Mayenne?
Mayenne gets on average 8.1 hours of sunshine per day, roughly 2,957 hours per year over 1940-2025.
What is the biggest single-day snowfall in Mayenne?
The heaviest 24-hour snowfall measured in Mayenne between 1940 and 2025 was 4 January 1979, with 15.3 cm.
Are there tropical nights in Mayenne?
Yes: Mayenne has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mayenne?
In Mayenne, between 1940 and 2025, the highest apparent temperature reached 39.8 °C on 30 July 2024, and the lowest was -23.6 °C on 21 January 1942.
Compare Mayenne with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mayenne