Vierzon climate — normals and trends
Vierzon (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.6 °C and it receives 747 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 (20.0 °C on average) and the coldest is January (3.8 °C). Rainfall peaks in May.
Vierzon averages 43 frost days, 12 hot days (≥ 30 °C) and 132 rainy days per year.
Vierzon has warmed by +1.8 °C between 1940 and 2025, or +0.22 °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 41.2 °C (on 25 July 2019) and the coldest -19.7 °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
VierzonCentre-Val de Loire
- coords
- 47.22°, 2.07°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.6°C
Average daily high
15.8°C
Average daily low
7.7°C
Annual rainfall
747mm
Sunshine / day
7.9h
Mean relative humidity
77%
Average peak wind
17.1km/h
Seasonal range
16.2°C
Frost days (< 0 °C)
43 d/yr
Hot days (≥ 30 °C)
12 d/yr
Rainy days (≥ 1 mm)
132 d/yr
Annual snowfall
11.2 cm
Average feels-like high
13.8 °C
Average feels-like low
5.2 °C
Average peak gust
35.4 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
12.1 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
41.2 °C
25 July 2019
Coldest day
-19.7 °C
17 January 1985
Wettest day
47 mm
13 July 2021
Windiest day
56.9 km/h
26 December 1999
Strongest gust
130.0 km/h
26 December 1999
Hottest feels-like
41.6 °C
27 June 2019
Coldest feels-like
-25.1 °C
17 January 1985
Snowiest day
13.0 cm
4 March 2006
Sunniest day
15.6 h
25 June 1952
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 | 7.9 °C | +1.4 °C | 121 mm | +55 mm |
| Feb | 10.1 °C | +1.8 °C | 48 mm | -13 mm |
| Mar | 13.9 °C | +1.8 °C | 66 mm | +6 mm |
| Apr | 18.7 °C | +3.4 °C | 58 mm | -2 mm |
| May | 21.3 °C | +2.3 °C | 33 mm | -42 mm |
| Jun | 28.6 °C | +5.9 °C | 21 mm | -37 mm |
| Jul | 26.9 °C | +1.9 °C | 64 mm | +13 mm |
| Aug | 28.1 °C | +3.3 °C | 53 mm | +2 mm |
| Sep | 20.9 °C | -0.8 °C | 66 mm | +8 mm |
| Oct | 17.2 °C | +0.6 °C | 80 mm | +11 mm |
| Nov | 12.2 °C | +1.6 °C | 77 mm | +8 mm |
| Dec | 9.4 °C | +2.1 °C | 65 mm | -5 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 Vierzon?
Vierzon has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.6 °C and it receives 747 mm of precipitation per year.
What is the hottest day ever recorded in Vierzon?
The hottest day measured in Vierzon between 1940 and 2025 was 25 July 2019, reaching 41.2 °C.
What is the coldest day in Vierzon?
The coldest day measured in Vierzon between 1940 and 2025 was 17 January 1985, at -19.7 °C.
Does it snow in Vierzon?
Yes. Vierzon gets on average 11.2 cm of snow per year and has around 43 frost days.
Has the climate of Vierzon warmed?
Yes: Vierzon warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Vierzon?
The wettest day measured in Vierzon between 1940 and 2025 was 13 July 2021, with 47 mm of rain in 24 hours.
What was the windiest day in Vierzon?
The windiest day measured in Vierzon between 1940 and 2025 was 26 December 1999, with winds reaching 56.9 km/h.
What is the warmest month in Vierzon?
The warmest month in Vierzon is July (20.0 °C on average); the coldest is January (3.8 °C).
How much does it rain in Vierzon?
Vierzon receives on average 747 mm of precipitation per year, spread over about 132 rainy days.
Is it sunny in Vierzon?
Vierzon 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 Vierzon?
The heaviest 24-hour snowfall measured in Vierzon between 1940 and 2025 was 4 March 2006, with 13.0 cm.
Are there tropical nights in Vierzon?
Yes: Vierzon has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Vierzon?
In Vierzon, between 1940 and 2025, the highest apparent temperature reached 41.6 °C on 27 June 2019, and the lowest was -25.1 °C on 17 January 1985.
Compare Vierzon with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Vierzon