Les Coteaux climate — normals and trends
Les Coteaux (Canada) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.9 °C and it receives 1,004 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 (21.3 °C on average) and the coldest is January (-9.1 °C). Rainfall peaks in April.
Les Coteaux averages 144 frost days, 12 hot days (≥ 30 °C) and 138 rainy days per year.
Les Coteaux has warmed by +1.6 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The number of frost days there went from about 153 to 135 per year over the period.
The hottest day of the period reached 36.6 °C (on 4 August 1955) and the coldest -36.7 °C (on 15 January 1957).
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
Les CoteauxQuebec
- coords
- 45.28°, -74.23°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.9°C
Average daily high
11.5°C
Average daily low
2.2°C
Annual rainfall
1,004mm
Sunshine / day
8.3h
Mean relative humidity
73%
Average peak wind
17.3km/h
Seasonal range
30.4°C
Frost days (< 0 °C)
144 d/yr
Hot days (≥ 30 °C)
12 d/yr
Rainy days (≥ 1 mm)
138 d/yr
Annual snowfall
148.2 cm
Average feels-like high
9.1 °C
Average feels-like low
-0.9 °C
Average peak gust
36.8 km/h
Tropical nights (≥ 20 °C)
9 d/yr
Solar radiation
13.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.31 · 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
36.6 °C
4 August 1955
Coldest day
-36.7 °C
15 January 1957
Wettest day
97 mm
9 August 2024
Windiest day
49.7 km/h
25 February 1956
Strongest gust
102.6 km/h
21 October 1995
Hottest feels-like
41.1 °C
1 July 2018
Coldest feels-like
-42.2 °C
15 January 1957
Snowiest day
32.3 cm
3 April 1975
Sunniest day
15.5 h
21 June 1995
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 | -4.7 °C | +0.2 °C | 51 mm | -17 mm |
| Feb | -4.3 °C | -1.1 °C | 86 mm | +21 mm |
| Mar | 5.4 °C | +2.7 °C | 91 mm | +16 mm |
| Apr | 12.1 °C | +1.1 °C | 106 mm | +13 mm |
| May | 18.9 °C | 0.0 °C | 105 mm | +17 mm |
| Jun | 25.7 °C | +1.8 °C | 64 mm | -25 mm |
| Jul | 28.1 °C | +1.8 °C | 74 mm | -13 mm |
| Aug | 27.0 °C | +2.0 °C | 41 mm | -46 mm |
| Sep | 23.3 °C | +2.8 °C | 46 mm | -41 mm |
| Oct | 16.3 °C | +2.8 °C | 157 mm | +66 mm |
| Nov | 3.7 °C | -2.1 °C | 97 mm | +9 mm |
| Dec | -3.0 °C | -1.3 °C | 78 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 Les Coteaux?
Les Coteaux has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.9 °C and it receives 1,004 mm of precipitation per year.
What is the hottest day ever recorded in Les Coteaux?
The hottest day measured in Les Coteaux between 1940 and 2025 was 4 August 1955, reaching 36.6 °C.
What is the coldest day in Les Coteaux?
The coldest day measured in Les Coteaux between 1940 and 2025 was 15 January 1957, at -36.7 °C.
Does it snow in Les Coteaux?
Yes. Les Coteaux gets on average 148.2 cm of snow per year and has around 144 frost days.
Has the climate of Les Coteaux warmed?
Yes: Les Coteaux warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Les Coteaux?
The wettest day measured in Les Coteaux between 1940 and 2025 was 9 August 2024, with 97 mm of rain in 24 hours.
What was the windiest day in Les Coteaux?
The windiest day measured in Les Coteaux between 1940 and 2025 was 25 February 1956, with winds reaching 49.7 km/h.
What is the warmest month in Les Coteaux?
The warmest month in Les Coteaux is July (21.3 °C on average); the coldest is January (-9.1 °C).
How much does it rain in Les Coteaux?
Les Coteaux receives on average 1,004 mm of precipitation per year, spread over about 138 rainy days.
Is it sunny in Les Coteaux?
Les Coteaux 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 Les Coteaux?
The heaviest 24-hour snowfall measured in Les Coteaux between 1940 and 2025 was 3 April 1975, with 32.3 cm.
Are there tropical nights in Les Coteaux?
Yes: Les Coteaux has on average 9 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Les Coteaux?
In Les Coteaux, between 1940 and 2025, the highest apparent temperature reached 41.1 °C on 1 July 2018, and the lowest was -42.2 °C on 15 January 1957.
Compare Les Coteaux with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Les Coteaux