Montbrison climate — normals and trends
Montbrison (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.1 °C and it receives 948 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 (17.9 °C on average) and the coldest is January (0.9 °C). Rainfall peaks in May.
Montbrison averages 80 frost days, 5 hot days (≥ 30 °C) and 156 rainy days per year.
Montbrison has warmed by +2.4 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The number of frost days there went from about 98 to 62 per year over the period.
The hottest day of the period reached 36.7 °C (on 31 July 2020) and the coldest -23.6 °C (on 16 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
MontbrisonRhône-Alpes
- coords
- 45.61°, 4.07°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.1°C
Average daily high
13.4°C
Average daily low
5.2°C
Annual rainfall
948mm
Sunshine / day
8.7h
Mean relative humidity
77%
Average peak wind
14.1km/h
Seasonal range
17.0°C
Frost days (< 0 °C)
80 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
156 d/yr
Annual snowfall
79.5 cm
Average feels-like high
11.3 °C
Average feels-like low
2.7 °C
Average peak gust
36.8 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
13.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.57 · 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
36.7 °C
31 July 2020
Coldest day
-23.6 °C
16 January 1985
Wettest day
82 mm
23 September 1993
Windiest day
45.0 km/h
7 November 1982
Strongest gust
125.3 km/h
8 November 1982
Hottest feels-like
38.3 °C
27 June 2019
Coldest feels-like
-28.6 °C
7 January 1985
Snowiest day
26.3 cm
7 January 1994
Sunniest day
15.1 h
20 June 2000
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 6.9 °C | +2.8 °C | 72 mm | +8 mm |
| Feb | 8.5 °C | +2.8 °C | 58 mm | -4 mm |
| Mar | 10.0 °C | +0.6 °C | 100 mm | +32 mm |
| Apr | 15.3 °C | +2.8 °C | 82 mm | -4 mm |
| May | 18.0 °C | +1.5 °C | 91 mm | -14 mm |
| Jun | 26.3 °C | +5.9 °C | 77 mm | -10 mm |
| Jul | 24.3 °C | +1.3 °C | 50 mm | -23 mm |
| Aug | 26.5 °C | +3.8 °C | 86 mm | +2 mm |
| Sep | 18.9 °C | -0.3 °C | 132 mm | +47 mm |
| Oct | 14.5 °C | +0.3 °C | 66 mm | -16 mm |
| Nov | 9.4 °C | +1.2 °C | 97 mm | +16 mm |
| Dec | 7.9 °C | +3.0 °C | 64 mm | -7 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 Montbrison?
Montbrison has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.1 °C and it receives 948 mm of precipitation per year.
What is the hottest day ever recorded in Montbrison?
The hottest day measured in Montbrison between 1940 and 2025 was 31 July 2020, reaching 36.7 °C.
What is the coldest day in Montbrison?
The coldest day measured in Montbrison between 1940 and 2025 was 16 January 1985, at -23.6 °C.
Does it snow in Montbrison?
Yes. Montbrison gets on average 79.5 cm of snow per year and has around 80 frost days.
Has the climate of Montbrison warmed?
Yes: Montbrison warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Montbrison?
The wettest day measured in Montbrison between 1940 and 2025 was 23 September 1993, with 82 mm of rain in 24 hours.
What was the windiest day in Montbrison?
The windiest day measured in Montbrison between 1940 and 2025 was 7 November 1982, with winds reaching 45.0 km/h.
What is the warmest month in Montbrison?
The warmest month in Montbrison is July (17.9 °C on average); the coldest is January (0.9 °C).
How much does it rain in Montbrison?
Montbrison receives on average 948 mm of precipitation per year, spread over about 156 rainy days.
Is it sunny in Montbrison?
Montbrison gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
What is the biggest single-day snowfall in Montbrison?
The heaviest 24-hour snowfall measured in Montbrison between 1940 and 2025 was 7 January 1994, with 26.3 cm.
Are there tropical nights in Montbrison?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Montbrison.
What was the most extreme apparent temperature in Montbrison?
In Montbrison, between 1940 and 2025, the highest apparent temperature reached 38.3 °C on 27 June 2019, and the lowest was -28.6 °C on 7 January 1985.
Compare Montbrison with another city
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Nearby cities
The climate around Montbrison