Photo: Matdumsa · CC BY-SA 4.0

Climate in Bois-des-Filion · ECCC 1991–2020 normals

Afternoon heat in Bois-des-Filion beats that of 78% of Canadian towns

The depth of winter brings overnight lows near −13.5°C. By precipitation alone, it ranks wetter than 74% of Canadian towns. The wettest month is October; the driest is February. Have the furnace checked before October to April, the months that average under 10°C.

July afternoons: warmer than 78% of Canadian towns

January nights: milder than 51% of Canadian towns

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

ECCC publishes no normals for Bois-des-Filion itself; the figures are those of Montréal Trudeau (Airport), 22 km south.

July high

26.7°C

Typical Canadian town 25.5°C

January low

−13.5°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

146

a year at 0°C or below

Frost-free days

167

29 Apr to 14 Oct

A year in Bois-des-Filion at a glance

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

Jan−5°C−14°CColdest nightsSnowiest

Feb−3°C−12°C

Mar2°C−7°C

Apr11°C1°CLast frost ~29 Apr

May19°C8°C

Jun24°C14°C

Jul27°C17°CWarmest

Aug26°C16°C

Sep21°C11°C

Oct13°C5°CWettestFirst frost ~14 Oct

Nov now6°C−2°C

Dec−1°C−9°C

What stands out about Bois-des-Filion’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.Warmer than 78% of Canadian townsJuly afternoons average 26.7°C, the warmest of the year. 4th warmest of 513 towns of 2,500+ in Quebec.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 Bois-des-Filion feels like

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

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

26°C / 15°C

268 mm of rain and snow

Autumn

13°C / 5°C

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

−20°

−10°

0°

10°

20°

30°

40°

−5°C−14°C

−3°C−12°C

2°C−7°C

11°C1°C

19°C8°C

24°C14°C

27°C17°C

26°C16°C

21°C11°C

13°C5°C

6°C−2°C

−1°C−9°C

JanFebMarAprMayJunJulAugSepOctNovDec

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

Frost & warm days

Frost on 146 days, 20°C on 121

The frost season runs October to April, and January freezes nearly every night. Some 12 nights a year drop under −20°C.

167 frost-free days · average dates, 1991–2020

29 Apr 14 Oct

JanFebMarAprMayJunJulAugSepOctNovDec

146

Frost days a year (0°C or below)

Fewer frosts than 65% of Canadian towns

Days that stay below 0°C

Nights a year below −20°C

121

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

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

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

101

Days a year with 1 cm or more on the ground

11 cm

Snow on the ground at the end of January, the deepest month

Snowfall by month

Centimetres

52 cm

JFMAMJJASOND

Snow on the ground by month

Centimetres at month’s end

11 cm

JFMAMJJASOND

Heating

Heating a home in Bois-des-Filion

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

4,281 heating degree days (below 18°C)a year, 1991–2020

2,247 growing degree days (above 5°C)a year, 1991–2020

Every day colder than 18°C on average adds its gap in degrees to the year’s heating total. That means homes here need less heating than 62% of Canadian towns.

Living here

Living with Bois-des-Filion’s climate

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

The garden window

The frost-free stretch runs from about 29 April to about 14 October, some 167 days in a normal year.

Get outside

The outdoor season by the averages is May, Jun, Jul, Aug and Sep, with highs of 17–27°C and lows of 8°C or more.

Parks & trails →

Wind chill

Expect around 40 days a year when the wind chill sinks below −20.

Humidex

Humid heat, a humidex over 30, comes on about 50 days a year.

Storms and extremes

Ice storms, floods and heat waves are risks, not averages: they are on Bois-des-Filion’s hazards page.

Flood & hazards →

Weather station

ECCC’s normals location: Montréal Trudeau (Airport)

Behind the 1991–2020 normals for Montréal Trudeau (Airport) are 3 stations, which ECCC combines into one record.

Distance from the town	22 km south
Station altitude	36 m
Completeness	meets the WMO “3 and 5” rule
WMO standard normals	No
Coldest reading, 1991–2020	−31.8°C
Hottest reading, 1991–2020	36.6°C
Average wind	15.4 km/h on average, most often from the west
Next-nearest location	L'Assomption, 30 km

Compared with other towns

How Bois-des-Filion compares

Against the 2,611 Canadian towns and neighbourhoods of 2,500 or more, each read from its own normals location; the dots are the other locations those towns use in Quebec.

July afternoons26.7°C

Bois-des-FilionMedian Canadian town

18°C20°C22°C24°C26°C28°C

Warmer than 78% of Canadian towns4th warmest of 513 towns of 2,500+ in Quebec

January nights−13.5°C

Bois-des-FilionMedian Canadian town

−30°C−25°C−20°C−15°C−10°C−5°C

Milder than 51% of Canadian towns

Rain and snow a year1,041 mm

Bois-des-FilionMedian Canadian town

05001,0001,5002,000

Wetter than 74% of Canadian towns

Snowfall a year217 cm

Bois-des-FilionMedian Canadian town

100200300400

Snowier than 80% of Canadian towns

Next door

Nearby towns’ climate

Nearby places read from a different ECCC location (places on Bois-des-Filion’s own would show the same figures). Bois-des-Filion has no close neighbour with figures; the nearest is 9 km away.

Town	July high	January low	Rain & snow
Bois-des-Filion Montréal Trudeau (Airport)	26.7°C	−13.5°C	1,041 mm
Terrebonne 9.0 km · L'Assomption	26.6°C about the same	−16.0°C 2.5°C colder	1,041 mm

Month by month

Bois-des-Filion 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	−5.0°C	−13.5°C	−9.2°C	86 mm	52 cm
February	−3.4°C	−12.4°C	−8.0°C	66 mm	47 cm
March	2.4°C	−6.5°C	−2.0°C	77 mm	37 cm
April	11.3°C	1.1°C	6.2°C	90 mm	15 cm
May	19.4°C	8.3°C	13.9°C	86 mm	0 cm
June	24.2°C	13.8°C	19.0°C	84 mm	0 cm
July	26.7°C	16.7°C	21.7°C	91 mm	0 cm
August	25.7°C	15.6°C	20.6°C	94 mm	0 cm
September	21.1°C	10.9°C	16.0°C	89 mm	0 cm
October	13.2°C	4.5°C	8.9°C	103 mm	1 cm
November	6.1°C	−1.7°C	2.3°C	84 mm	16 cm
December	−1.2°C	−8.7°C	−5.0°C	92 mm	48 cm
Year	11.7°C	2.3°C	7.0°C	1,041 mm	217 cm

Year to year

A March here can run from −26.9°C to 25.8°C

Bars run from each month’s record low to its record high over 1991–2020; January is the month whose average wanders most from year to year (±3.0°C around −9.2°C), June the one that wanders least (±1.1°C).

−40°

−30°

−20°

−10°

0°

10°

20°

30°

40°

JanFebMarAprMayJunJulAugSepOctNovDec

Record low to record high, 1991–2020Normal

Sources

Where Bois-des-Filion’s numbers come from

Averages over 30 years, not a forecast.

Normals: ECCC’s normals for Montréal Trudeau (Airport), 1991–2020, chosen as the nearest location with a full temperature record.
Comparisons: every place of 2,500+ in Canada but the city hubs and the reserves, each on its nearest ECCC location.
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 Bois-des-Filion’s climate

How warm does Bois-des-Filion get in summer?

Afternoons average 26.7°C in July, the warmest time of year.

How cold does Bois-des-Filion get in winter?

Deep winter means January, when nights average −13.5°C.

How much rain and snow does Bois-des-Filion get?

1,041 mm a year counting snow as water. The wettest month is October (103 mm); the driest, February (66 mm).

How long does snow stay on the ground?

There is 1 cm of snow or more on the ground on roughly 101 days a year.

Are these figures for Bois-des-Filion itself?

Not directly: Bois-des-Filion has no ECCC normals of its own, and Montréal Trudeau (Airport) stands in for it.

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

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).