Photo: Studio Livernois · Public domain

Climate in Cacouna · ECCC 1991–2020 normals

Cacouna sits near the bottom of Canadian towns for July heat

Midwinter brings lows of about −15.5°C. The gap between a January night and a July afternoon is 38°C. Precipitation is plentiful here, more than falls on 83% of Canadian towns. For walks and days out, the stretch from June to August brings highs of 20–23°C.

July afternoons: cooler than 96% of Canadian towns

January nights: colder than 73% of Canadian towns

Rain and snow a year: wetter than 83% of Canadian towns

The nearest ECCC normals location to Cacouna is Rivière-du-Loup/St-Antonin, 11 km south, and every figure on this page is its.

July high

22.5°C

Typical Canadian town 25.5°C

January low

−15.5°C

Typical Canadian town −13.5°C

Rain & snow a year

1,124 mm

Typical Canadian town 883 mm

Snowfall a year

281 cm

Typical Canadian town 141 cm

Frost days

176

a year at 0°C or below

A year in Cacouna at a glance

Each month’s typical high and low, in °C.

Jan−7°C−16°CColdest nights

Feb−6°C−14°C

Mar−1°C−9°C

Apr6°C−2°C

May14°C4°C

Jun20°C9°C

Jul23°C13°CWarmest

Aug22°C12°C

Sep17°C8°C

Oct10°C2°CWettest

Nov now3°C−3°C

Dec−4°C−10°CSnowiest

What stands out about Cacouna’s climate

Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.

Cooler than 96% of Canadian townsJuly afternoons average 22.5°C, the warmest of the year.Snowier than 91% of Canadian townsAbout 281 cm of snow falls in a year, most of it in December.Wetter than 83% of Canadian townsAbout 1,124 mm of rain and melted snow a year; October is the wettest month and January the driest.

A normal year

What a year in Cacouna feels like

Each season’s and each month’s usual high and low, 1991–2020.

Winter

−6°C / −13°C

217 mm, with 181 cm of snow

Spring

6°C / −2°C

268 mm, with 74 cm of snow

Summer

21°C / 11°C

326 mm of rain and snow, the wettest season

Autumn

10°C / 2°C

312 mm, with 27 cm of snow

−20°

−10°

0°

10°

20°

30°

−7°C−16°C

−6°C−14°C

−1°C−9°C

6°C−2°C

14°C4°C

20°C9°C

23°C13°C

22°C12°C

17°C8°C

10°C2°C

3°C−3°C

−4°C−10°C

JanFebMarAprMayJunJulAugSepOctNovDec

Best months to be outsideJunJulAugHighs of 17–27°C and nights of 8°C or more

Frost & warm days

About 176 frosts and 74 warm days a year

From October to May frost is routine, and in January it comes on almost every night. On about 17 nights a year the air falls below −20°C.

176

Frost days a year (0°C or below)

More frosts than 61% of Canadian towns

103

Days that stay below 0°C

Nights a year below −20°C

Days a year above 20°C

Days a year above 30°C

Frost days by month

Average days at 0°C or below

JFMAMJJASOND

Days above 20°C by month

Average days

JFMAMJJASOND

Rain & snow

1,124 mm of precipitation in a typical year

October is the wettest month and January the driest. About 137 days a year bring 1 mm or more.

1,124 mm

Rain and snow a year

Wetter than 83% of Canadian towns

860 mm

Of it as rain alone (77%)

124 mm

October, the wettest month

63 mm

January, the driest month

Rain and snow by month

Millimetres

124 mm

JFMAMJJASOND

Rain alone by month

Millimetres

118 mm

JFMAMJJASOND

Precipitation and snowfall: Grandes-Bergeronnes, 38 km away (Rivière-du-Loup/St-Antonin records no complete year of either).

Snow

281 cm of snow in a typical year

Expect snow from October to May, with about 66 cm in December, the snowiest month.

281 cm

Snowfall a year

Snowier than 91% of Canadian towns

Days a year with 0.2 cm of snow or more

Snowfall by month

Centimetres

66 cm

JFMAMJJASOND

Heating

Heating a home in Cacouna

88% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.

5,236 heating degree days (below 18°C)a year, 1991–2020

1,516 growing degree days (above 5°C)a year, 1991–2020

Think of it as a year’s worth of daily shortfalls below 18°C, added up. By this count, homes here need more heating than 81% of Canadian towns.

Living here

Living with Cacouna’s climate

Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.

Get outside

For long days outdoors, Jun, Jul and Aug bring highs of 17–27°C and lows of 8°C or more.

Parks & trails →

Wind chill

Plan for about 49 days a year with a wind chill below −20.

Humidex

A humidex above 30 marks about 16 days in a normal year.

Storms and extremes

For the weather that does damage, from ice storms to floods, see Cacouna’s hazards page.

Flood & hazards →

Weather station

ECCC’s normals location: Rivière-du-Loup/St-Antonin

Rivière-du-Loup/St-Antonin is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.

Distance from the town	11 km south
Station altitude	147 m
Completeness	at least 20 years
WMO standard normals	No
Precipitation from	Grandes-Bergeronnes, 38 km
Coldest reading, 1991–2020	−31.3°C
Hottest reading, 1991–2020	34.2°C
Average wind	9.8 km/h on average, most often from the north
Next-nearest location	Grandes-Bergeronnes, 38 km

Compared with other towns

How Cacouna compares

Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Quebec.

July afternoons22.5°C

CacounaMedian Canadian town

18°C20°C22°C24°C26°C28°C

Cooler than 96% of Canadian towns

January nights−15.5°C

CacounaMedian Canadian town

−30°C−25°C−20°C−15°C−10°C−5°C

Colder than 73% of Canadian towns

Rain and snow a year1,124 mm

CacounaMedian Canadian town

05001,0001,5002,000

Wetter than 83% of Canadian towns

Snowfall a year281 cm

CacounaMedian Canadian town

100200300400

Snowier than 91% of Canadian towns

Next door

Nearby towns’ climate

Places around Cacouna whose figures come from another normals location. Distances here run 32–48 km: that is how far the nearest places with figures are from Cacouna.

Town	July high	January low	Rain & snow
Cacouna Rivière-du-Loup/St-Antonin	22.5°C	−15.5°C	1,124 mm
Notre-Dame-des-Neiges 32 km · Grandes-Bergeronnes	22.3°C about the same	−16.6°C 1.1°C colder	1,124 mm
Saint-Pascal 48 km · La Pocatière	24.2°C 1.7°C warmer	−15.3°C about the same	906 mm

Month by month

Cacouna weather by month

Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.

Month	High	Low	Mean	Rain & snow	Snow
January	−7.3°C	−15.5°C	−11.4°C	63 mm	51 cm
February	−6.1°C	−14.4°C	−10.2°C	68 mm	64 cm
March	−0.8°C	−9.0°C	−4.9°C	74 mm	52 cm
April	6.0°C	−1.9°C	2.1°C	98 mm	21 cm
May	14.2°C	4.2°C	9.3°C	96 mm	1 cm
June	19.7°C	9.4°C	14.5°C	101 mm	0 cm
July	22.5°C	12.8°C	17.7°C	113 mm	0 cm
August	21.8°C	12.2°C	17.0°C	111 mm	0 cm
September	17.2°C	7.9°C	12.5°C	110 mm	0 cm
October	9.6°C	2.2°C	5.9°C	124 mm	5 cm
November	2.8°C	−3.3°C	−0.3°C	78 mm	22 cm
December	−3.7°C	−10.4°C	−7.1°C	86 mm	66 cm
Year	8.0°C	−0.5°C	3.8°C	1,124 mm	281 cm

Year to year

March has run from −25.8°C to 21.1°C in thirty years

Year to year, February varies most (a standard deviation of 2.8°C around −10.2°C) and August least (1.0°C).

−40°

−30°

−20°

−10°

0°

10°

20°

30°

40°

JanFebMarAprMayJunJulAugSepOctNovDec

Record low to record high, 1991–2020Normal

Sources

Where Cacouna’s numbers come from

Averages over 30 years, not a forecast.

Normals: the 1991–2020 Canadian Climate Normals at Rivière-du-Loup/St-Antonin, the closest ECCC location with twelve months of temperature normals.
Other locations: where a location publishes no full year of precipitation or snowfall, the nearest one that does supplies it, named beside those figures.
Comparisons: Canada’s towns and neighbourhoods of 2,500+ (no city totals, no reserves), each through its own nearest location.
Not on this page: a sunshine figure (ECCC published none for 1991–2020) and any lapse-rate correction for height, as the town has no elevation here.

Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada

Questions about Cacouna’s climate

How warm does Cacouna get in summer?

The year’s warmest days come in July, with highs averaging 22.5°C.

How cold does Cacouna get in winter?

Of all twelve months, January has the coldest nights, about −15.5°C.

How much rain and snow does Cacouna get?

Rain and snow add up to about 1,124 mm of water a year; October brings the most (124 mm), January the least (63 mm).

Are these figures for Cacouna itself?

Not exactly. Cacouna lacks a normals station, so Rivière-du-Loup/St-Antonin supplies the figures.

Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Cacouna →

Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).