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Climate in Westmount · ECCC 1991–2020 normals

Less rain and snow fall on Westmount than on 90% of Canadian towns: 423 mm a year

High summer brings afternoon highs near 23.5°C. Summers stay cool: July afternoons here are cooler than in 80% of Canadian towns. Precipitation follows the seasons: July brings about 7.0 times as much as February. Plan for rain or snow on about 72 days a year, the days with 1 mm or more.

July afternoons: cooler than 80% of Canadian towns
January nights: colder than 67% of Canadian towns
Rain and snow a year: drier than 90% of Canadian towns

Read at Edmonton (City), 2.4 km north-east: ECCC’s normals for 1991–2020.

A year in Westmount at a glance

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

Jan−6°C−15°CColdest nightsSnowiest
Feb−3°C−13°C
Mar2°C−8°C
Apr10°C−1°C
May18°C6°CLast frost ~7 May
Jun21°C10°C
Jul24°C13°CWarmestWettest
Aug23°C11°C
Sep18°C6°CFirst frost ~25 Sep
Oct10°C0°C
Nov now1°C−8°C
Dec−5°C−13°C

What stands out about Westmount’s climate

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

A normal year

What a year in Westmount feels like

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

Winter
−5°C / −14°C
43 mm, with 53 cm of snow
Spring
10°C / −1°C
90 mm, with 39 cm of snow
Summer
22°C / 11°C
213 mm of rain and snow, the wettest season
Autumn
9°C / 0°C
77 mm, with 32 cm of snow
Best months to be outsideJunJulAugHighs of 17–27°C and nights of 8°C or more
Frost & warm days

179 frost days and 90 days above 20°C a year

Frost comes from September to May; in January almost every night freezes. Deep cold, under −20°C, comes on about 24 nights a year.

179
Frost days a year (0°C or below)
More frosts than 67% of Canadian towns
86
Days that stay below 0°C
24
Nights a year below −20°C
90
Days a year above 20°C
4
Days a year above 30°C

Frost days by month

Average days at 0°C or below

31
JFMAMJJASOND

Days above 20°C by month

Average days

25
JFMAMJJASOND
Rain & snow

423 mm of precipitation in a typical year

423 mm
Rain and snow a year
Drier than 90% of Canadian towns
329 mm
Of it as rain alone (78%)
83 mm
July, the wettest month
12 mm
February, the driest month

Rain and snow by month

Millimetres

83 mm
JFMAMJJASOND

Rain alone by month

Millimetres

78 mm
JFMAMJJASOND
Snow

About 124 cm of snow a year

From October to May snow is likely; January is the peak, at about 26 cm.

124 cm
Snowfall a year
Less snowy than 71% of Canadian towns
49
Days a year with 0.2 cm of snow or more
21 cm
Snow on the ground at the end of January, the deepest month

Snowfall by month

Centimetres

26 cm
JFMAMJJASOND

Snow on the ground by month

Centimetres at month’s end

21 cm
JFMAMJJASOND
Heating

Heating a home in Westmount

89% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.

5,126 heating degree days (below 18°C)a year, 1991–2020
1,648 growing degree days (above 5°C)a year, 1991–2020

Degree days add up how far each day’s mean temperature falls below 18°C over a year. In heating terms, homes need more heating than 76% of Canadian towns.

Living here

Living with Westmount’s climate

The averages read for the garden, the outdoors and the coldest and hottest days.

The garden window

Gardens get from about 7 May to 25 September without frost, around 141 days in all.

Get outside

Plan time outside for Jun, Jul and Aug: highs of 17–27°C and nights no colder than 8°C.

Parks & trails →
Wind chill

Winter brings about 50 days with a wind chill below −20.

Humidex

Plan shade and water for about 11 days a year above 30 on the humidex.

Storms and extremes

A normal year has no blizzard, flood or heat wave in it; Westmount’s hazards page looks at those.

Flood & hazards →
Weather station

ECCC’s normals location: Edmonton (City)

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

Distance from the town2.4 km north-east
Station altitude671 m
Completenessmeets the WMO “3 and 5” rule
WMO standard normalsNo
Coldest reading, 1991–2020−37.8°C
Hottest reading, 1991–202034.9°C
Average wind12.2 km/h on average, most often from the west
Next-nearest locationEdmonton (Airport), 26 km
Compared with other towns

How Westmount compares

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

July afternoons23.5°C
WestmountMedian Canadian town
20°C22°C24°C26°C28°C
Cooler than 80% of Canadian towns
January nights−14.7°C
WestmountMedian Canadian town
−25°C−20°C−15°C−10°C
Colder than 67% of Canadian towns
Rain and snow a year423 mm
WestmountMedian Canadian town
05001,0001,500
Drier than 90% of Canadian towns
Snowfall a year124 cm
WestmountMedian Canadian town
0100200300
Less snowy than 71% of Canadian towns
Next door

Nearby towns’ climate

The nearest places on a normals location of their own: those that share Westmount’s would only repeat its figures. No closer places have figures: these lie 24–25 km from Westmount.

TownJuly highJanuary lowRain & snow
Westmount Edmonton (City)23.5°C−14.7°C423 mm
Beaumont 24 km · Edmonton (Airport)23.0°C 0.5°C cooler−18.1°C 3.4°C colder434 mm
Fort Saskatchewan 25 km · Fort Saskatchewan23.6°C about the same−17.8°C 3.1°C colder473 mm
Month by month

Westmount weather by month

Average daily high and low, mean temperature, rain and snow (as water) and snowfall by month, 1991–2020.

MonthHighLowMeanRain & snowSnow
January−5.8°C−14.7°C−10.3°C20 mm26 cm
February−3.0°C−12.7°C−7.9°C12 mm13 cm
March1.7°C−7.8°C−3.1°C17 mm19 cm
April10.4°C−0.7°C4.9°C29 mm15 cm
May17.5°C5.6°C11.6°C44 mm5 cm
June21.0°C10.2°C15.6°C70 mm0 cm
July23.5°C12.6°C18.1°C83 mm0 cm
August22.6°C11.3°C17.0°C61 mmunder 1 cm
September17.6°C6.2°C11.9°C39 mm1 cm
October10.0°C−0.1°C5.0°C21 mm11 cm
November0.6°C−7.5°C−3.5°C18 mm20 cm
December−4.7°C−13.2°C−9.0°C12 mm15 cm
Year9.3°C−0.9°C4.2°C423 mm124 cm
Year to year

March has run from −34.0°C to 23.9°C in thirty years

Year to year, February varies most (a standard deviation of 4.2°C around −7.9°C) and June least (1.0°C).

Record low to record high, 1991–2020Normal
Sources

Where Westmount’s numbers come from

Averages over 30 years, not a forecast.

  • Normals: 1991–2020 normals for Edmonton (City) from ECCC’s climate data site, the nearest location with every month of temperature.
  • Comparisons: a pool of Canadian towns and neighbourhoods of 2,500 or more, read alike; whole cities and reserves stay out of it.
  • 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 Westmount’s climate

How warm does Westmount get in summer?

July is the warmest month, with average highs of 23.5°C.

How cold does Westmount get in winter?

Midwinter means January, when a typical night reaches −14.7°C.

How much rain and snow does Westmount get?

Around 423 mm a year in all, from 83 mm in July down to 12 mm in February.

Are these figures for Westmount itself?

They are the normals for Edmonton (City), measured just outside Westmount itself.

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

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).