La Chapelle-Saint-Mesmin climate — normals and trends
La Chapelle-Saint-Mesmin (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.2 °C and it receives 650 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 (19.3 °C on average) and the coldest is January (3.6 °C). Rainfall peaks in May.
La Chapelle-Saint-Mesmin averages 43 frost days, 8 hot days (≥ 30 °C) and 124 rainy days per year.
La Chapelle-Saint-Mesmin 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 54 to 32 per year over the period.
The hottest day of the period reached 41.6 °C (on 25 July 2019) and the coldest -21.2 °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
La Chapelle-Saint-MesminCentre-Val de Loire
- coords
- 47.89°, 1.83°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.2°C
Average daily high
15.2°C
Average daily low
7.4°C
Annual rainfall
650mm
Sunshine / day
7.9h
Mean relative humidity
78%
Average peak wind
19.2km/h
Seasonal range
15.7°C
Frost days (< 0 °C)
43 d/yr
Hot days (≥ 30 °C)
8 d/yr
Rainy days (≥ 1 mm)
124 d/yr
Annual snowfall
12.0 cm
Average feels-like high
12.9 °C
Average feels-like low
4.7 °C
Average peak gust
36.4 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
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.40 · 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
41.6 °C
25 July 2019
Coldest day
-21.2 °C
17 January 1985
Wettest day
60 mm
7 August 1965
Windiest day
66.0 km/h
3 February 1990
Strongest gust
131.8 km/h
26 December 1999
Hottest feels-like
40.6 °C
30 July 2024
Coldest feels-like
-26.4 °C
17 January 1985
Snowiest day
14.1 cm
25 April 1941
Sunniest day
15.8 h
24 June 2025
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 | 6.8 °C | +0.7 °C | 113 mm | +58 mm |
| Feb | 8.7 °C | +0.9 °C | 57 mm | +6 mm |
| Mar | 13.5 °C | +2.0 °C | 46 mm | -7 mm |
| Apr | 18.3 °C | +3.7 °C | 51 mm | -2 mm |
| May | 20.7 °C | +2.5 °C | 33 mm | -32 mm |
| Jun | 27.5 °C | +5.8 °C | 16 mm | -36 mm |
| Jul | 26.2 °C | +2.0 °C | 57 mm | +10 mm |
| Aug | 26.4 °C | +2.4 °C | 63 mm | +16 mm |
| Sep | 20.2 °C | -0.8 °C | 61 mm | +12 mm |
| Oct | 16.6 °C | +0.6 °C | 56 mm | -4 mm |
| Nov | 11.6 °C | +1.4 °C | 62 mm | +2 mm |
| Dec | 9.0 °C | +2.0 °C | 50 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 La Chapelle-Saint-Mesmin?
La Chapelle-Saint-Mesmin has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.2 °C and it receives 650 mm of precipitation per year.
What is the hottest day ever recorded in La Chapelle-Saint-Mesmin?
The hottest day measured in La Chapelle-Saint-Mesmin between 1940 and 2025 was 25 July 2019, reaching 41.6 °C.
What is the coldest day in La Chapelle-Saint-Mesmin?
The coldest day measured in La Chapelle-Saint-Mesmin between 1940 and 2025 was 17 January 1985, at -21.2 °C.
Does it snow in La Chapelle-Saint-Mesmin?
Yes. La Chapelle-Saint-Mesmin gets on average 12.0 cm of snow per year and has around 43 frost days.
Has the climate of La Chapelle-Saint-Mesmin warmed?
Yes: La Chapelle-Saint-Mesmin warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in La Chapelle-Saint-Mesmin?
The wettest day measured in La Chapelle-Saint-Mesmin between 1940 and 2025 was 7 August 1965, with 60 mm of rain in 24 hours.
What was the windiest day in La Chapelle-Saint-Mesmin?
The windiest day measured in La Chapelle-Saint-Mesmin between 1940 and 2025 was 3 February 1990, with winds reaching 66.0 km/h.
What is the warmest month in La Chapelle-Saint-Mesmin?
The warmest month in La Chapelle-Saint-Mesmin is July (19.3 °C on average); the coldest is January (3.6 °C).
How much does it rain in La Chapelle-Saint-Mesmin?
La Chapelle-Saint-Mesmin receives on average 650 mm of precipitation per year, spread over about 124 rainy days.
Is it sunny in La Chapelle-Saint-Mesmin?
La Chapelle-Saint-Mesmin gets on average 7.9 hours of sunshine per day, roughly 2,884 hours per year over 1940-2025.
What is the biggest single-day snowfall in La Chapelle-Saint-Mesmin?
The heaviest 24-hour snowfall measured in La Chapelle-Saint-Mesmin between 1940 and 2025 was 25 April 1941, with 14.1 cm.
Are there tropical nights in La Chapelle-Saint-Mesmin?
Yes: La Chapelle-Saint-Mesmin has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in La Chapelle-Saint-Mesmin?
In La Chapelle-Saint-Mesmin, between 1940 and 2025, the highest apparent temperature reached 40.6 °C on 30 July 2024, and the lowest was -26.4 °C on 17 January 1985.
Compare La Chapelle-Saint-Mesmin with another city
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Nearby cities
The climate around La Chapelle-Saint-Mesmin