Avallon climate — normals and trends
Avallon (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.5 °C and it receives 922 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 (18.9 °C on average) and the coldest is January (2.4 °C). Rainfall peaks in May.
Avallon averages 54 frost days, 8 hot days (≥ 30 °C) and 152 rainy days per year.
Avallon has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The number of frost days there went from about 64 to 44 per year over the period.
The hottest day of the period reached 39.8 °C (on 25 July 2019) and the coldest -20.9 °C (on 22 January 1942).
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
AvallonBourgogne
- coords
- 47.49°, 3.91°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.5°C
Average daily high
14.4°C
Average daily low
6.8°C
Annual rainfall
922mm
Sunshine / day
7.9h
Mean relative humidity
78%
Average peak wind
16.4km/h
Seasonal range
16.5°C
Frost days (< 0 °C)
54 d/yr
Hot days (≥ 30 °C)
8 d/yr
Rainy days (≥ 1 mm)
152 d/yr
Annual snowfall
30.9 cm
Average feels-like high
12.3 °C
Average feels-like low
4.2 °C
Average peak gust
35.3 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
12.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.38 · 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
39.8 °C
25 July 2019
Coldest day
-20.9 °C
22 January 1942
Wettest day
54 mm
26 September 1956
Windiest day
55.2 km/h
26 December 1999
Strongest gust
135.7 km/h
26 December 1999
Hottest feels-like
41.4 °C
27 June 2019
Coldest feels-like
-26.3 °C
10 February 1956
Snowiest day
18.2 cm
28 November 1947
Sunniest day
15.2 h
4 July 2025
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 | 6.9 °C | +2.0 °C | 98 mm | +16 mm |
| Feb | 8.4 °C | +1.8 °C | 58 mm | -17 mm |
| Mar | 12.9 °C | +2.3 °C | 59 mm | -13 mm |
| Apr | 17.5 °C | +3.5 °C | 52 mm | -23 mm |
| May | 19.8 °C | +2.0 °C | 48 mm | -41 mm |
| Jun | 26.9 °C | +5.5 °C | 30 mm | -45 mm |
| Jul | 25.3 °C | +1.6 °C | 63 mm | -1 mm |
| Aug | 26.4 °C | +3.0 °C | 111 mm | +42 mm |
| Sep | 19.3 °C | -0.7 °C | 115 mm | +42 mm |
| Oct | 15.3 °C | +0.2 °C | 87 mm | +9 mm |
| Nov | 10.7 °C | +1.7 °C | 100 mm | +15 mm |
| Dec | 8.3 °C | +2.6 °C | 64 mm | -23 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 Avallon?
Avallon has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.5 °C and it receives 922 mm of precipitation per year.
What is the hottest day ever recorded in Avallon?
The hottest day measured in Avallon between 1940 and 2025 was 25 July 2019, reaching 39.8 °C.
What is the coldest day in Avallon?
The coldest day measured in Avallon between 1940 and 2025 was 22 January 1942, at -20.9 °C.
Does it snow in Avallon?
Yes. Avallon gets on average 30.9 cm of snow per year and has around 54 frost days.
Has the climate of Avallon warmed?
Yes: Avallon warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Avallon?
The wettest day measured in Avallon between 1940 and 2025 was 26 September 1956, with 54 mm of rain in 24 hours.
What was the windiest day in Avallon?
The windiest day measured in Avallon between 1940 and 2025 was 26 December 1999, with winds reaching 55.2 km/h.
What is the warmest month in Avallon?
The warmest month in Avallon is July (18.9 °C on average); the coldest is January (2.4 °C).
How much does it rain in Avallon?
Avallon receives on average 922 mm of precipitation per year, spread over about 152 rainy days.
Is it sunny in Avallon?
Avallon 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 Avallon?
The heaviest 24-hour snowfall measured in Avallon between 1940 and 2025 was 28 November 1947, with 18.2 cm.
Are there tropical nights in Avallon?
Yes: Avallon has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Avallon?
In Avallon, between 1940 and 2025, the highest apparent temperature reached 41.4 °C on 27 June 2019, and the lowest was -26.3 °C on 10 February 1956.
Compare Avallon with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Avallon