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Climate in Wellington · ECCC 1991–2020 normals

Dry weather: only 423 mm of rain and snow a year falls on Wellington, less than on 90% of Canadian towns

The depth of winter brings overnight lows near −14.7°C. In July, afternoons here are cooler than in 80% of Canadian towns. Some 38°C separates winter nights from summer afternoons. Wet days, with 1 mm of rain or snow or more, come about 72 times a year.

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

1991–2020 normals from ECCC’s Edmonton (City) location, 3.8 km south-east.

A year in Wellington 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 Wellington’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 Wellington 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

About 179 frosts and 90 warm days a year

From September to May frost is routine, and in January it comes on almost every night. Some 24 nights a year drop under −20°C.

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

July brings the most rain and snow; February, the least.

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

Snowfall: about 124 cm in a normal 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 Wellington

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

One degree below 18°C for one day makes one heating degree day; the year’s days are added together. By this count, homes here need more heating than 76% of Canadian towns.

Living here

Living with Wellington’s climate

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

The garden window

Seedlings can go out once the average last frost, around 7 May, has passed; autumn’s first, near 25 September, ends a season of about 141 days.

Get outside

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

Parks & trails →
Wind chill

Roughly 50 days a year feel colder than −20 in the wind.

Humidex

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

Storms and extremes

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

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 town3.8 km south-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 locationFort Saskatchewan, 28 km
Compared with other towns

How Wellington 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 Alberta.

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

Nearby towns’ climate

Places around Wellington whose figures come from another normals location. Wellington has few close neighbours with figures, so the list reaches 23–30 km out.

TownJuly highJanuary lowRain & snow
Wellington Edmonton (City)23.5°C−14.7°C423 mm
Fort Saskatchewan 23 km · Fort Saskatchewan23.6°C about the same−17.8°C 3.1°C colder473 mm
Beaumont 29 km · Edmonton (Airport)23.0°C 0.5°C cooler−18.1°C 3.4°C colder434 mm
Month by month

Wellington 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

A February here can run warm or cold, its average moving by about 4.2°C; the steadiest month is June

The thirty-year records stretch furthest in March: a low of −34.0°C in 2003 and a high of 23.9°C in 2004.

Record low to record high, 1991–2020Normal
Sources

Where Wellington’s numbers come from

Averages over 30 years, not a forecast.

  • Normals: ECCC’s 1991–2020 Canadian Climate Normals for Edmonton (City), the nearest location with a full year of temperatures.
  • 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 Wellington’s climate

How warm does Wellington get in summer?

Of all twelve months, July has the warmest afternoons, about 23.5°C.

How cold does Wellington get in winter?

At its coldest, in January, the normal low is −14.7°C.

How much rain and snow does Wellington get?

Some 423 mm falls in a year. Most of it comes in July (83 mm), the least in February (12 mm).

Are these figures for Wellington itself?

Almost: ECCC’s Edmonton (City) location, which gives these figures, lies a short way outside Wellington.

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

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).