Blanzy climate — normals and trends
Blanzy (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.0 °C and it receives 871 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 (20.1 °C on average) and the coldest is January (2.5 °C). Rainfall peaks in November.
Blanzy averages 51 frost days, 12 hot days (≥ 30 °C) and 137 rainy days per year.
Blanzy has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 61 to 41 per year over the period.
The hottest day of the period reached 40.0 °C (on 7 August 2003) and the coldest -21.3 °C (on 9 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
BlanzyBourgogne
- coords
- 46.70°, 4.39°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.0°C
Average daily high
15.0°C
Average daily low
7.3°C
Annual rainfall
871mm
Sunshine / day
8.3h
Mean relative humidity
76%
Average peak wind
14.8km/h
Seasonal range
17.6°C
Frost days (< 0 °C)
51 d/yr
Hot days (≥ 30 °C)
12 d/yr
Rainy days (≥ 1 mm)
137 d/yr
Annual snowfall
23.7 cm
Average feels-like high
13.2 °C
Average feels-like low
5.0 °C
Average peak gust
33.6 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
12.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.43 · 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
40.0 °C
7 August 2003
Coldest day
-21.3 °C
9 January 1985
Wettest day
75 mm
12 November 1996
Windiest day
46.6 km/h
26 December 1999
Strongest gust
121.7 km/h
26 December 1999
Hottest feels-like
41.5 °C
27 June 2019
Coldest feels-like
-26.1 °C
10 February 1956
Snowiest day
20.2 cm
7 January 1994
Sunniest day
15.1 h
3 July 1947
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 | 6.6 °C | +1.5 °C | 97 mm | +24 mm |
| Feb | 8.8 °C | +1.7 °C | 53 mm | -14 mm |
| Mar | 13.0 °C | +1.8 °C | 60 mm | -6 mm |
| Apr | 17.4 °C | +2.7 °C | 76 mm | +4 mm |
| May | 20.2 °C | +1.5 °C | 55 mm | -31 mm |
| Jun | 27.5 °C | +5.0 °C | 48 mm | -21 mm |
| Jul | 25.8 °C | +0.7 °C | 55 mm | +1 mm |
| Aug | 27.6 °C | +2.9 °C | 80 mm | +13 mm |
| Sep | 19.8 °C | -1.1 °C | 114 mm | +37 mm |
| Oct | 15.2 °C | -0.3 °C | 102 mm | +23 mm |
| Nov | 10.7 °C | +1.5 °C | 104 mm | +18 mm |
| Dec | 7.7 °C | +1.9 °C | 71 mm | -6 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 Blanzy?
Blanzy has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.0 °C and it receives 871 mm of precipitation per year.
What is the hottest day ever recorded in Blanzy?
The hottest day measured in Blanzy between 1940 and 2025 was 7 August 2003, reaching 40.0 °C.
What is the coldest day in Blanzy?
The coldest day measured in Blanzy between 1940 and 2025 was 9 January 1985, at -21.3 °C.
Does it snow in Blanzy?
Yes. Blanzy gets on average 23.7 cm of snow per year and has around 51 frost days.
Has the climate of Blanzy warmed?
Yes: Blanzy warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Blanzy?
The wettest day measured in Blanzy between 1940 and 2025 was 12 November 1996, with 75 mm of rain in 24 hours.
What was the windiest day in Blanzy?
The windiest day measured in Blanzy between 1940 and 2025 was 26 December 1999, with winds reaching 46.6 km/h.
What is the warmest month in Blanzy?
The warmest month in Blanzy is July (20.1 °C on average); the coldest is January (2.5 °C).
How much does it rain in Blanzy?
Blanzy receives on average 871 mm of precipitation per year, spread over about 137 rainy days.
Is it sunny in Blanzy?
Blanzy gets on average 8.3 hours of sunshine per day, roughly 3,030 hours per year over 1940-2025.
What is the biggest single-day snowfall in Blanzy?
The heaviest 24-hour snowfall measured in Blanzy between 1940 and 2025 was 7 January 1994, with 20.2 cm.
Are there tropical nights in Blanzy?
Yes: Blanzy has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Blanzy?
In Blanzy, between 1940 and 2025, the highest apparent temperature reached 41.5 °C on 27 June 2019, and the lowest was -26.1 °C on 10 February 1956.
Compare Blanzy with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Blanzy