Photo: Minoumi · Public domain

Climate in Chambly · ECCC 1991–2020 normals

Precipitation in Chambly tops that of 74% of Canadian towns: 1,041 mm a year

Peak summer warmth arrives in July, with afternoons near 26.6°C. Summer afternoons here are warmer than in 70% of Canadian towns. Temperatures cover 40°C across the year, low to high. Frost comes on about 149 days a year, so leave time to clear the car.

July afternoons: warmer than 70% of Canadian towns

January nights: colder than 56% of Canadian towns

Rain and snow a year: wetter than 74% of Canadian towns

No ECCC station in Chambly has 1991–2020 normals; the page reads L'Acadie, 17 km south, instead.

July high

26.6°C

Typical Canadian town 25.5°C

January low

−13.6°C

Typical Canadian town −13.5°C

Rain & snow a year

1,041 mm

Typical Canadian town 883 mm

Snowfall a year

217 cm

Typical Canadian town 141 cm

Frost days

149

a year at 0°C or below

A year in Chambly at a glance

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

Jan−4°C−14°CColdest nightsSnowiest

Feb−3°C−13°C

Mar3°C−7°C

Apr11°C1°C

May20°C8°C

Jun24°C13°C

Jul27°C16°CWarmest

Aug25°C14°C

Sep21°C10°C

Oct14°C4°CWettest

Nov now6°C−2°C

Dec−1°C−9°C

What stands out about Chambly’s climate

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

Snowier than 80% of Canadian townsAbout 217 cm of snow falls in a year, most of it in January.Wetter than 74% of Canadian townsAbout 1,041 mm of rain and melted snow a year; October is the wettest month and February the driest.

A normal year

What a year in Chambly feels like

Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.

Winter

−3°C / −12°C

243 mm, with 147 cm of snow

Spring

11°C / 1°C

253 mm, with 52 cm of snow

Summer

25°C / 14°C

268 mm of rain and snow

Autumn

14°C / 4°C

277 mm, with 17 cm of snow: the wettest season

−20°

−10°

0°

10°

20°

30°

40°

−4°C−14°C

−3°C−13°C

3°C−7°C

11°C1°C

20°C8°C

24°C13°C

27°C16°C

25°C14°C

21°C10°C

14°C4°C

6°C−2°C

−1°C−9°C

JanFebMarAprMayJunJulAugSepOctNovDec

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

Frost & warm days

Frost on 149 days, 20°C on 124

From October to April frost is routine, and in January it comes on almost every night. On about 15 nights a year the air falls below −20°C.

149

Frost days a year (0°C or below)

Fewer frosts than 58% of Canadian towns

Days that stay below 0°C

Nights a year below −20°C

124

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

About 1,041 mm of rain and snow a year

October brings the most rain and snow; February, the least. On about 122 days a year, 1 mm or more falls.

1,041 mm

Rain and snow a year

Wetter than 74% of Canadian towns

818 mm

Of it as rain alone (79%)

103 mm

October, the wettest month

66 mm

February, the driest month

Rain and snow by month

Millimetres

103 mm

JFMAMJJASOND

Rain alone by month

Millimetres

102 mm

JFMAMJJASOND

ECCC’s L'Acadie normals leave out precipitation and snow; both come from Montréal Trudeau (Airport) here, 36 km away.

Snow

Snowfall: about 217 cm in a normal year

The snow season runs October to April; January brings the most, about 52 cm.

217 cm

Snowfall a year

Snowier than 80% of Canadian towns

Days a year with 0.2 cm of snow or more

Snowfall by month

Centimetres

52 cm

JFMAMJJASOND

Heating

Heating a home in Chambly

93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.

4,304 heating degree days (below 18°C)a year, 1991–2020

2,197 growing degree days (above 5°C)a year, 1991–2020

Each day the mean sits under 18°C adds its shortfall; a year’s total is its heating degree days.

Living here

Living with Chambly’s climate

What the normals mean for a garden, a day outside and the depth of winter.

Get outside

Afternoons of 17–27°C and nights of at least 8°C arrive in Jun, Jul, Aug and Sep.

Parks & trails →

Wind chill

Wind chill falls below −20 on about 36 days a year: cover skin and dress in layers.

Humidex

Plan shade and water for about 50 days a year above 30 on the humidex.

Storms and extremes

Thirty years of averages say little about one bad storm; Chambly’s hazards page does.

Flood & hazards →

Weather station

ECCC’s normals location: L'Acadie

Every temperature, frost, snow and degree-day figure on this page is the 1991–2020 normal ECCC publishes for L'Acadie.

Distance from the town	17 km south
Station altitude	44 m
Completeness	at least 20 years
WMO standard normals	No
Precipitation from	Montréal Trudeau (Airport), 36 km
Coldest reading, 1991–2020	−32.5°C
Hottest reading, 1991–2020	36.1°C
Average wind	11.4 km/h on average, most often from the west
Next-nearest location	Montréal Trudeau (Airport), 36 km

Compared with other towns

How Chambly 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 afternoons26.6°C

ChamblyMedian Canadian town

18°C20°C22°C24°C26°C28°C

Warmer than 70% of Canadian towns

January nights−13.6°C

ChamblyMedian Canadian town

−30°C−25°C−20°C−15°C−10°C−5°C

Colder than 56% of Canadian towns

Rain and snow a year1,041 mm

ChamblyMedian Canadian town

05001,0001,5002,000

Wetter than 74% of Canadian towns

Snowfall a year217 cm

ChamblyMedian Canadian town

100200300400

Snowier than 80% of Canadian towns

Next door

Nearby towns’ climate

The nearest places on a normals location of their own: those that share Chambly’s would only repeat its figures. Distances here run 15–17 km: that is how far the nearest places with figures are from Chambly.

Town	July high	January low	Rain & snow
Chambly L'Acadie	26.6°C	−13.6°C	1,041 mm
Longueuil 15 km · Montréal Trudeau (Airport)	26.7°C about the same	−13.5°C about the same	1,041 mm
Beloeil 17 km · Fleury	26.0°C 0.6°C cooler	−14.8°C 1.2°C colder	1,109 mm
Sainte-Julie 17 km · L'Assomption	26.6°C about the same	−16.0°C 2.4°C colder	1,041 mm

Month by month

Chambly weather by month

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

Month	High	Low	Mean	Rain & snow	Snow
January	−4.3°C	−13.6°C	−9.0°C	86 mm	52 cm
February	−2.9°C	−12.7°C	−7.8°C	66 mm	47 cm
March	2.6°C	−6.7°C	−2.1°C	77 mm	37 cm
April	11.1°C	0.7°C	5.9°C	90 mm	15 cm
May	19.5°C	7.8°C	13.7°C	86 mm	0 cm
June	24.2°C	13.2°C	18.7°C	84 mm	0 cm
July	26.6°C	15.5°C	21.1°C	91 mm	0 cm
August	25.3°C	13.9°C	19.6°C	94 mm	0 cm
September	21.4°C	9.7°C	15.6°C	89 mm	0 cm
October	13.6°C	4.1°C	8.9°C	103 mm	1 cm
November	6.1°C	−1.7°C	2.2°C	84 mm	16 cm
December	−0.7°C	−8.6°C	−4.7°C	92 mm	48 cm
Year	11.9°C	1.8°C	6.8°C	1,041 mm	217 cm

Year to year

January strays furthest from its normal year to year, by 2.9°C; August the least

Each bar spans a month’s coldest and warmest readings over thirty years; March’s run from −28.7°C in 2003 to 25.4°C in 2012.

−40°

−30°

−20°

−10°

0°

10°

20°

30°

40°

JanFebMarAprMayJunJulAugSepOctNovDec

Record low to record high, 1991–2020Normal

Sources

Where Chambly’s numbers come from

Averages over 30 years, not a forecast.

Normals: the 1991–2020 Canadian Climate Normals at L'Acadie, the closest ECCC location with twelve months of temperature normals.
Other locations: precipitation and snowfall come from the nearest location that publishes all twelve months of them, as named above.
Comparisons: the towns and neighbourhoods of 2,500+ across Canada, each on its nearest normals location, without the city totals or the reserves.
Not on this page: hours of sunshine, missing from the 1991–2020 normals, and a height correction: the town has no elevation on file.

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

Questions about Chambly’s climate

How warm does Chambly get in summer?

At its warmest, in July, the normal high is 26.6°C.

How cold does Chambly get in winter?

Midwinter means January, when a typical night reaches −13.6°C.

How much rain and snow does Chambly get?

Rain and snow add up to about 1,041 mm of water a year; October brings the most (103 mm), February the least (66 mm).

Are these figures for Chambly itself?

Not quite: they come from L'Acadie, the closest ECCC normals location to Chambly.

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

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).