Blain climate — normals and trends
Blain (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.8 °C and it receives 671 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 (18.8 °C on average) and the coldest is January (5.3 °C). Rainfall peaks in December.
Blain averages 30 frost days, 5 hot days (≥ 30 °C) and 118 rainy days per year.
Blain has warmed by +1.4 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The number of frost days there went from about 39 to 21 per year over the period.
The hottest day of the period reached 42.2 °C (on 18 July 2022) and the coldest -12.5 °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
BlainPays de la Loire Region
- coords
- 47.48°, -1.76°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.8°C
Average daily high
15.7°C
Average daily low
8.1°C
Annual rainfall
671mm
Sunshine / day
8.4h
Mean relative humidity
80%
Average peak wind
19.2km/h
Seasonal range
13.5°C
Frost days (< 0 °C)
30 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
118 d/yr
Annual snowfall
3.6 cm
Average feels-like high
13.7 °C
Average feels-like low
5.7 °C
Average peak gust
37.4 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
12.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.33 · 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
42.2 °C
18 July 2022
Coldest day
-12.5 °C
17 January 1985
Wettest day
53 mm
9 October 2024
Windiest day
68.1 km/h
11 March 1963
Strongest gust
125.6 km/h
26 December 1999
Hottest feels-like
41.4 °C
10 August 2003
Coldest feels-like
-18.7 °C
17 January 1985
Snowiest day
8.2 cm
8 March 1958
Sunniest day
15.7 h
22 June 2018
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 | 8.5 °C | +0.5 °C | 182 mm | +117 mm |
| Feb | 9.8 °C | +0.7 °C | 50 mm | -5 mm |
| Mar | 13.9 °C | +1.9 °C | 32 mm | -25 mm |
| Apr | 18.3 °C | +3.6 °C | 73 mm | +19 mm |
| May | 20.8 °C | +2.8 °C | 33 mm | -31 mm |
| Jun | 26.5 °C | +5.1 °C | 31 mm | -16 mm |
| Jul | 25.8 °C | +2.3 °C | 86 mm | +47 mm |
| Aug | 26.7 °C | +3.3 °C | 24 mm | -17 mm |
| Sep | 20.6 °C | -0.3 °C | 38 mm | -9 mm |
| Oct | 17.9 °C | +1.3 °C | 47 mm | -19 mm |
| Nov | 13.9 °C | +2.2 °C | 66 mm | -0 mm |
| Dec | 10.1 °C | +1.3 °C | 78 mm | +9 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 Blain?
Blain has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.8 °C and it receives 671 mm of precipitation per year.
What is the hottest day ever recorded in Blain?
The hottest day measured in Blain between 1940 and 2025 was 18 July 2022, reaching 42.2 °C.
What is the coldest day in Blain?
The coldest day measured in Blain between 1940 and 2025 was 17 January 1985, at -12.5 °C.
Does it snow in Blain?
Yes. Blain gets on average 3.6 cm of snow per year and has around 30 frost days.
Has the climate of Blain warmed?
Yes: Blain warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Blain?
The wettest day measured in Blain between 1940 and 2025 was 9 October 2024, with 53 mm of rain in 24 hours.
What was the windiest day in Blain?
The windiest day measured in Blain between 1940 and 2025 was 11 March 1963, with winds reaching 68.1 km/h.
What is the warmest month in Blain?
The warmest month in Blain is July (18.8 °C on average); the coldest is January (5.3 °C).
How much does it rain in Blain?
Blain receives on average 671 mm of precipitation per year, spread over about 118 rainy days.
Is it sunny in Blain?
Blain gets on average 8.4 hours of sunshine per day, roughly 3,066 hours per year over 1940-2025.
What is the biggest single-day snowfall in Blain?
The heaviest 24-hour snowfall measured in Blain between 1940 and 2025 was 8 March 1958, with 8.2 cm.
Are there tropical nights in Blain?
Yes: Blain has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Blain?
In Blain, between 1940 and 2025, the highest apparent temperature reached 41.4 °C on 10 August 2003, and the lowest was -18.7 °C on 17 January 1985.
Compare Blain with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Blain