Beynost climate — normals and trends
Beynost (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.7 °C and it receives 987 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 (21.0 °C on average) and the coldest is January (2.7 °C). Rainfall peaks in November.
Beynost averages 50 frost days, 17 hot days (≥ 30 °C) and 137 rainy days per year.
Beynost has warmed by +2.6 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 68 to 32 per year over the period.
The hottest day of the period reached 40.2 °C (on 24 August 2023) and the coldest -22.6 °C (on 5 February 1963).
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
BeynostRhône-Alpes
- coords
- 45.84°, 5.00°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.7°C
Average daily high
16.0°C
Average daily low
7.7°C
Annual rainfall
987mm
Sunshine / day
8.9h
Mean relative humidity
75%
Average peak wind
15.1km/h
Seasonal range
18.3°C
Frost days (< 0 °C)
50 d/yr
Hot days (≥ 30 °C)
17 d/yr
Rainy days (≥ 1 mm)
137 d/yr
Annual snowfall
24.7 cm
Average feels-like high
14.3 °C
Average feels-like low
5.7 °C
Average peak gust
32.9 km/h
Tropical nights (≥ 20 °C)
5 d/yr
Solar radiation
13.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °C per decade · r² = 0.62 · 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
40.2 °C
24 August 2023
Coldest day
-22.6 °C
5 February 1963
Wettest day
77 mm
8 May 1985
Windiest day
46.3 km/h
1 January 1949
Strongest gust
97.6 km/h
20 December 2019
Hottest feels-like
41.9 °C
27 June 2019
Coldest feels-like
-26.9 °C
5 February 1963
Snowiest day
24.4 cm
7 January 1994
Sunniest day
15.0 h
26 May 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 | 8.1 °C | +2.3 °C | 115 mm | +40 mm |
| Feb | 9.8 °C | +1.8 °C | 50 mm | -20 mm |
| Mar | 13.7 °C | +1.5 °C | 67 mm | -5 mm |
| Apr | 18.9 °C | +3.2 °C | 88 mm | +9 mm |
| May | 21.4 °C | +1.7 °C | 83 mm | -10 mm |
| Jun | 29.4 °C | +5.7 °C | 76 mm | -5 mm |
| Jul | 27.8 °C | +1.6 °C | 53 mm | -15 mm |
| Aug | 29.8 °C | +4.0 °C | 61 mm | -24 mm |
| Sep | 21.5 °C | -0.5 °C | 158 mm | +67 mm |
| Oct | 16.1 °C | -0.4 °C | 107 mm | +15 mm |
| Nov | 11.8 °C | +1.6 °C | 136 mm | +38 mm |
| Dec | 8.6 °C | +2.1 °C | 60 mm | -21 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 Beynost?
Beynost has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.7 °C and it receives 987 mm of precipitation per year.
What is the hottest day ever recorded in Beynost?
The hottest day measured in Beynost between 1940 and 2025 was 24 August 2023, reaching 40.2 °C.
What is the coldest day in Beynost?
The coldest day measured in Beynost between 1940 and 2025 was 5 February 1963, at -22.6 °C.
Does it snow in Beynost?
Yes. Beynost gets on average 24.7 cm of snow per year and has around 50 frost days.
Has the climate of Beynost warmed?
Yes: Beynost warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Beynost?
The wettest day measured in Beynost between 1940 and 2025 was 8 May 1985, with 77 mm of rain in 24 hours.
What was the windiest day in Beynost?
The windiest day measured in Beynost between 1940 and 2025 was 1 January 1949, with winds reaching 46.3 km/h.
What is the warmest month in Beynost?
The warmest month in Beynost is July (21.0 °C on average); the coldest is January (2.7 °C).
How much does it rain in Beynost?
Beynost receives on average 987 mm of precipitation per year, spread over about 137 rainy days.
Is it sunny in Beynost?
Beynost gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
What is the biggest single-day snowfall in Beynost?
The heaviest 24-hour snowfall measured in Beynost between 1940 and 2025 was 7 January 1994, with 24.4 cm.
Are there tropical nights in Beynost?
Yes: Beynost has on average 5 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Beynost?
In Beynost, between 1940 and 2025, the highest apparent temperature reached 41.9 °C on 27 June 2019, and the lowest was -26.9 °C on 5 February 1963.
Compare Beynost with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Beynost