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Climate in Central St. Boniface · ECCC 1991–2020 normals

Nights turn raw in Central St. Boniface each January, colder than in 95% of Canadian towns

Sunny July days climb to about 25.8°C. The gap between a January night and a July afternoon is 47°C. It is a dry place: less rain and snow fall here than on 72% of Canadian towns. Windshields need scraping on about 193 mornings a year, the days the air reaches 0°C or below.

July afternoons: warmer than 57% of Canadian towns
January nights: colder than 95% of Canadian towns
Rain and snow a year: drier than 72% of Canadian towns

Read at Winnipeg Richardson (Airport), 9.0 km north-west: ECCC’s normals for 1991–2020.

A year in Central St. Boniface at a glance

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

Jan−11°C−21°CColdest nights
Feb−9°C−19°C
Mar−1°C−11°C
Apr10°C−3°C
May18°C4°CLast frost ~23 May
Jun23°C11°C
Jul26°C13°CWarmestWettest
Aug25°C12°C
Sep20°C7°CFirst frost ~22 Sep
Oct10°C0°C
Nov now0°C−9°C
Dec−8°C−17°CSnowiest

What stands out about Central St. Boniface’s climate

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

A normal year

What a year in Central St. Boniface feels like

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

Winter
−9°C / −19°C
51 mm, with 64 cm of snow
Spring
9°C / −3°C
128 mm, with 37 cm of snow
Summer
25°C / 12°C
225 mm of rain and snow, the wettest season
Autumn
10°C / −1°C
116 mm, with 25 cm of snow
Best months to be outsideJunJulAugHighs of 17–27°C and nights of 8°C or more
Frost & warm days

About 193 frosts and 110 warm days a year

From September to May frost is routine, and in January it comes on almost every night. Deep cold, under −20°C, comes on about 52 nights a year.

193
Frost days a year (0°C or below)
More frosts than 85% of Canadian towns
115
Days that stay below 0°C
52
Nights a year below −20°C
110
Days a year above 20°C
12
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

29
JFMAMJJASOND
Rain & snow

Rain and melted snow: about 519 mm a year

The most falls in July, the least in February. Some 80 days a year see 1 mm of rain or snow or more.

519 mm
Rain and snow a year
Drier than 72% of Canadian towns
436 mm
Of it as rain alone (84%)
77 mm
July, the wettest month
13 mm
February, the driest month

Rain and snow by month

Millimetres

77 mm
JFMAMJJASOND

Rain alone by month

Millimetres

89 mm
JFMAMJJASOND
Snow

Snowfall: about 126 cm in a normal year

The snow season runs October to May; December brings the most, about 27 cm.

126 cm
Snowfall a year
Less snowy than 64% of Canadian towns
54
Days a year with 0.2 cm of snow or more
19 cm
Snow on the ground at the end of January, the deepest month

Snowfall by month

Centimetres

27 cm
JFMAMJJASOND

Snow on the ground by month

Centimetres at month’s end

19 cm
JFMAMJJASOND
Heating

Heating a home in Central St. Boniface

91% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.

5,672 heating degree days (below 18°C)a year, 1991–2020
1,814 growing degree days (above 5°C)a year, 1991–2020

Behind the figure: the degrees each day’s mean falls under 18°C, summed for the year. That means homes here need more heating than 89% of Canadian towns.

Living here

Living with Central St. Boniface’s climate

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

The garden window

About 122 days a year pass without frost, from an average last frost of 23 May to a first of 22 September.

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

Count on some 86 days a year when the wind makes it feel below −20.

Humidex

The humidex tops 30 on about 37 days a year: muggy days to plan around.

Storms and extremes

Storms, floods and heat waves sit outside these normals; Central St. Boniface’s hazards page covers them.

Flood & hazards →
Weather station

ECCC’s normals location: Winnipeg Richardson (Airport)

Behind the 1991–2020 normals for Winnipeg Richardson (Airport) are 4 stations, which ECCC combines into one record.

Distance from the town9.0 km north-west
Station altitude239 m
Completenessmeets the WMO “3 and 5” rule
WMO standard normalsNo
Coldest reading, 1991–2020−41.8°C
Hottest reading, 1991–202037.8°C
Average wind17.5 km/h on average, most often from the south
Next-nearest locationPinawa, 82 km
Compared with other towns

How Central St. Boniface 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 Manitoba.

July afternoons25.8°C
Central St. BonifaceMedian Canadian town
20°C22°C24°C26°C28°C
Warmer than 57% of Canadian towns8th warmest of 189 towns of 2,500+ in Manitoba
January nights−21.2°C
Central St. BonifaceMedian Canadian town
−30°C−25°C−20°C−15°C−10°C
Colder than 95% of Canadian towns
Rain and snow a year519 mm
Central St. BonifaceMedian Canadian town
05001,0001,500
Drier than 72% of Canadian towns
Snowfall a year126 cm
Central St. BonifaceMedian Canadian town
0100200300
Less snowy than 64% of Canadian towns
Next door

Nearby towns’ climate

The nearest places on a normals location of their own: those that share Central St. Boniface’s would only repeat its figures. The nearest places to Central St. Boniface with figures are 40–47 km away.

TownJuly highJanuary lowRain & snow
Central St. Boniface Winnipeg Richardson (Airport)25.8°C−21.2°C519 mm
Brokenhead 40 km · Pinawa25.2°C 0.6°C cooler−21.7°C 0.5°C colder571 mm
Cartier 47 km · Portage Southport25.4°C about the same−19.1°C 2.1°C milder493 mm
Month by month

Central St. Boniface weather by month

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

MonthHighLowMeanRain & snowSnow
January−11.4°C−21.2°C−16.3°C18 mm25 cm
February−8.8°C−19.3°C−14.1°C13 mm12 cm
March−0.9°C−11.2°C−6.1°C26 mm19 cm
April10.0°C−2.5°C3.8°C33 mm14 cm
May18.1°C4.2°C11.1°C70 mm4 cm
June23.3°C10.9°C17.1°C74 mm0 cm
July25.8°C13.2°C19.5°C77 mm0 cm
August25.4°C11.9°C18.7°C74 mm0 cm
September19.6°C6.9°C13.3°C53 mm0 cm
October10.4°C−0.2°C5.1°C38 mm4 cm
November0.1°C−8.8°C−4.4°C25 mm21 cm
December−8.2°C−17.3°C−12.7°C19 mm27 cm
Year8.6°C−2.8°C2.9°C519 mm126 cm
Year to year

December strays furthest from its normal year to year, by 4.1°C; July the least

The thirty-year records stretch furthest in March: a low of −37.4°C in 2003 and a high of 23.7°C in 2012.

Record low to record high, 1991–2020Normal
Sources

Where Central St. Boniface’s numbers come from

Averages over 30 years, not a forecast.

  • Normals: the 1991–2020 Canadian Climate Normals at Winnipeg Richardson (Airport), the closest ECCC location with twelve months of temperature normals.
  • 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: 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 Central St. Boniface’s climate

How warm does Central St. Boniface get in summer?

On a normal day in July the thermometer climbs to 25.8°C, the warmest of the year.

How cold does Central St. Boniface get in winter?

January nights average −21.2°C, the coldest of the year.

How much rain and snow does Central St. Boniface get?

About 519 mm a year, rain and melted snow together. July is the wettest month (77 mm) and February the driest (13 mm).

Are these figures for Central St. Boniface itself?

They are the normals for Winnipeg Richardson (Airport), measured just outside Central St. Boniface itself.

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

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).