Baie-Comeau climate — normals and trends
Baie-Comeau (Canada) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 2.2 °C and it receives 1,015 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 (16.3 °C on average) and the coldest is January (-13.4 °C). Rainfall peaks in September.
Baie-Comeau averages 174 frost days, 0 hot days (≥ 30 °C) and 137 rainy days per year.
Baie-Comeau has warmed by +2.3 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 188 to 160 per year over the period.
The hottest day of the period reached 28.5 °C (on 18 June 2020) and the coldest -34.9 °C (on 18 January 1982).
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
Baie-ComeauQuebec
- coords
- 49.22°, -68.15°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
2.2°C
Average daily high
5.1°C
Average daily low
-0.8°C
Annual rainfall
1,015mm
Sunshine / day
8.4h
Mean relative humidity
76%
Average peak wind
19.4km/h
Seasonal range
29.7°C
Frost days (< 0 °C)
174 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
137 d/yr
Annual snowfall
242.4 cm
Average feels-like high
1.8 °C
Average feels-like low
-4.9 °C
Average peak gust
38.0 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
12.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.44 · 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
28.5 °C
18 June 2020
Coldest day
-34.9 °C
18 January 1982
Wettest day
80 mm
3 November 1966
Windiest day
58.4 km/h
23 December 2022
Strongest gust
126.4 km/h
23 December 2022
Hottest feels-like
30.0 °C
2 August 1975
Coldest feels-like
-43.7 °C
18 January 1982
Snowiest day
28.4 cm
17 March 2007
Sunniest day
15.5 h
26 June 1941
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -7.1 °C | +2.8 °C | 54 mm | -15 mm |
| Feb | -7.5 °C | +0.7 °C | 72 mm | +13 mm |
| Mar | -2.0 °C | +0.6 °C | 98 mm | +25 mm |
| Apr | 3.8 °C | +0.6 °C | 121 mm | +41 mm |
| May | 11.7 °C | +2.3 °C | 117 mm | +34 mm |
| Jun | 18.1 °C | +2.4 °C | 91 mm | +3 mm |
| Jul | 20.7 °C | +1.6 °C | 125 mm | +25 mm |
| Aug | 20.0 °C | +1.6 °C | 51 mm | -40 mm |
| Sep | 16.1 °C | +2.2 °C | 45 mm | -55 mm |
| Oct | 10.5 °C | +2.9 °C | 66 mm | -30 mm |
| Nov | 2.4 °C | +1.5 °C | 90 mm | -3 mm |
| Dec | -6.5 °C | -0.1 °C | 92 mm | +8 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 Baie-Comeau?
Baie-Comeau has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 2.2 °C and it receives 1,015 mm of precipitation per year.
What is the hottest day ever recorded in Baie-Comeau?
The hottest day measured in Baie-Comeau between 1940 and 2025 was 18 June 2020, reaching 28.5 °C.
What is the coldest day in Baie-Comeau?
The coldest day measured in Baie-Comeau between 1940 and 2025 was 18 January 1982, at -34.9 °C.
Does it snow in Baie-Comeau?
Yes. Baie-Comeau gets on average 242.4 cm of snow per year and has around 174 frost days.
Has the climate of Baie-Comeau warmed?
Yes: Baie-Comeau warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Baie-Comeau?
The wettest day measured in Baie-Comeau between 1940 and 2025 was 3 November 1966, with 80 mm of rain in 24 hours.
What was the windiest day in Baie-Comeau?
The windiest day measured in Baie-Comeau between 1940 and 2025 was 23 December 2022, with winds reaching 58.4 km/h.
What is the warmest month in Baie-Comeau?
The warmest month in Baie-Comeau is July (16.3 °C on average); the coldest is January (-13.4 °C).
How much does it rain in Baie-Comeau?
Baie-Comeau receives on average 1,015 mm of precipitation per year, spread over about 137 rainy days.
Is it sunny in Baie-Comeau?
Baie-Comeau 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 Baie-Comeau?
The heaviest 24-hour snowfall measured in Baie-Comeau between 1940 and 2025 was 17 March 2007, with 28.4 cm.
Are there tropical nights in Baie-Comeau?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Baie-Comeau.
What was the most extreme apparent temperature in Baie-Comeau?
In Baie-Comeau, between 1940 and 2025, the highest apparent temperature reached 30.0 °C on 2 August 1975, and the lowest was -43.7 °C on 18 January 1982.
Compare Baie-Comeau with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Baie-Comeau