Photo: un bouchervillois · Public domain

Climate in Boucherville · ECCC 1991–2020 normals

Boucherville has colder winter nights than 75% of Canadian towns

Midsummer highs settle at about 26.6°C. Winter and summer sit 43°C apart. By precipitation alone, it ranks wetter than 74% of Canadian towns. From June to September, highs of 21–27°C make it easy to spend the day outdoors.

July afternoons: warmer than 70% of Canadian towns

January nights: colder than 75% of Canadian towns

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

The nearest ECCC normals location to Boucherville is L'Assomption, 24 km north, and every figure on this page is its.

July high

26.6°C

Typical Canadian town 25.5°C

January low

−16.0°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

161

a year at 0°C or below

A year in Boucherville at a glance

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

Jan−6°C−16°CColdest nightsSnowiest

Feb−4°C−15°C

Mar2°C−8°C

Apr11°C0°C

May19°C7°C

Jun24°C12°C

Jul27°C15°CWarmest

Aug26°C14°C

Sep21°C9°C

Oct13°C3°CWettest

Nov now5°C−3°C

Dec−2°C−10°C

What stands out about Boucherville’s climate

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

A wider year than 82% of Canadian townsFrom January nights to July afternoons, the year spans 42.6°C.Snowier than 80% of Canadian townsAbout 217 cm of snow falls in a year, most of it in January.Colder than 75% of Canadian townsJanuary nights average −16.0°C, the coldest of the year.

A normal year

What a year in Boucherville feels like

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

Winter

−4°C / −14°C

243 mm, with 147 cm of snow

Spring

11°C / 0°C

253 mm, with 52 cm of snow

Summer

25°C / 14°C

268 mm of rain and snow

Autumn

13°C / 3°C

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

−20°

−10°

0°

10°

20°

30°

40°

−6°C−16°C

−4°C−15°C

2°C−8°C

11°C0°C

19°C7°C

24°C12°C

27°C15°C

26°C14°C

21°C9°C

13°C3°C

5°C−3°C

−2°C−10°C

JanFebMarAprMayJunJulAugSepOctNovDec

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

Frost & warm days

Frost on 161 days, 20°C on 119

The frost season runs October to May, and January freezes nearly every night. On about 24 nights a year the air falls below −20°C.

161

Frost days a year (0°C or below)

More frosts than 52% of Canadian towns

Days that stay below 0°C

Nights a year below −20°C

119

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

Rain and melted snow: about 1,041 mm a year

October is the wettest month and February the driest. About 122 days a year bring 1 mm or more.

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'Assomption normals leave out precipitation and snow; both come from Montréal Trudeau (Airport) here, 28 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 Boucherville

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

4,592 heating degree days (below 18°C)a year, 1991–2020

2,093 growing degree days (above 5°C)a year, 1991–2020

A heating degree day is one degree of shortfall below 18°C for one day, summed over the year.

Living here

Living with Boucherville’s climate

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

Get outside

Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to Jun, Jul, Aug and Sep.

Parks & trails →

Wind chill

The wind chill passes −20 on about 44 days in a normal year.

Humidex

Plan shade and water for about 49 days a year above 30 on the humidex.

Storms and extremes

What averages leave out, the floods and ice storms, is on Boucherville’s hazards page.

Flood & hazards →

Weather station

ECCC’s normals location: L'Assomption

The page’s figures are ECCC’s 1991–2020 normals for L'Assomption, one of its 450 normals locations.

Distance from the town	24 km north
Station altitude	21 m
Completeness	meets the WMO “3 and 5” rule
WMO standard normals	No
Precipitation from	Montréal Trudeau (Airport), 28 km
Coldest reading, 1991–2020	−40.0°C
Hottest reading, 1991–2020	36.2°C
Average wind	10.0 km/h on average, most often from the south-west
Next-nearest location	Montréal Trudeau (Airport), 28 km

Compared with other towns

How Boucherville compares

Placed among 2,611 Canadian towns and neighbourhoods of 2,500+, each on its nearest normals location; each dot is another location used in Quebec.

July afternoons26.6°C

BouchervilleMedian Canadian town

18°C20°C22°C24°C26°C28°C

Warmer than 70% of Canadian towns

January nights−16.0°C

BouchervilleMedian Canadian town

−30°C−25°C−20°C−15°C−10°C−5°C

Colder than 75% of Canadian towns

Rain and snow a year1,041 mm

BouchervilleMedian Canadian town

05001,0001,5002,000

Wetter than 74% of Canadian towns

Snowfall a year217 cm

BouchervilleMedian Canadian town

100200300400

Snowier than 80% of Canadian towns

Next door

Nearby towns’ climate

Nearby places read from a different ECCC location (places on Boucherville’s own would show the same figures).

Town	July high	January low	Rain & snow
Boucherville L'Assomption	26.6°C	−16.0°C	1,041 mm
Fatima 5.1 km · Montréal Trudeau (Airport)	26.7°C about the same	−13.5°C 2.5°C milder	1,041 mm
Montréal-Est 6.1 km · L'Assomption	26.6°C about the same	−16.0°C about the same	1,041 mm

Month by month

Boucherville weather by month

Month by month, 1991–2020: the usual high, low and mean, the rain and snow, and the snowfall.

Month	High	Low	Mean	Rain & snow	Snow
January	−5.9°C	−16.0°C	−10.9°C	86 mm	52 cm
February	−4.0°C	−14.8°C	−9.4°C	66 mm	47 cm
March	1.8°C	−8.3°C	−3.2°C	77 mm	37 cm
April	10.8°C	0.1°C	5.5°C	90 mm	15 cm
May	19.2°C	7.2°C	13.2°C	86 mm	0 cm
June	24.3°C	12.4°C	18.4°C	84 mm	0 cm
July	26.6°C	14.8°C	20.7°C	91 mm	0 cm
August	25.5°C	13.7°C	19.6°C	94 mm	0 cm
September	21.1°C	9.2°C	15.2°C	89 mm	0 cm
October	13.0°C	3.2°C	8.1°C	103 mm	1 cm
November	5.4°C	−2.7°C	1.3°C	84 mm	16 cm
December	−1.9°C	−10.2°C	−6.1°C	92 mm	48 cm
Year	11.3°C	0.7°C	6.0°C	1,041 mm	217 cm

Year to year

A January here can run warm or cold, its average moving by about 3.1°C; the steadiest month is June

The thirty-year records stretch furthest in March: a low of −29.5°C in 1992 and a high of 26.0°C in 2012.

−50°

−40°

−30°

−20°

−10°

0°

10°

20°

30°

40°

JanFebMarAprMayJunJulAugSepOctNovDec

Record low to record high, 1991–2020Normal

Sources

Where Boucherville’s numbers come from

Averages over 30 years, not a forecast.

Normals: the Canadian Climate Normals, 1991–2020, at L'Assomption (the closest location with all twelve months of temperatures).
Other locations: a location missing months of precipitation or snow is filled from the nearest that has them all, never mixed month by month.
Comparisons: the 2,500-plus towns and neighbourhoods of Canada, each read from its closest normals location; whole cities and reserves aren’t counted.
Not on this page: sunshine, not in ECCC’s 1991–2020 normals, and the effect of the town’s height, for which there is no figure.

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

Questions about Boucherville’s climate

How warm does Boucherville get in summer?

Highs reach 26.6°C on an average July day; no month is warmer.

How cold does Boucherville get in winter?

Winter bottoms out in January, with lows near −16.0°C.

How much rain and snow does Boucherville get?

October is the wettest month at 103 mm and February the driest at 66 mm, for 1,041 mm over the year.

Are these figures for Boucherville itself?

No: Boucherville has no normals location, so the figures come from L'Assomption, the nearest with 1991–2020 normals.

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

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).