Climate in Attawapiskat 91A · ECCC 1991–2020 normals

Hardly any Canadian towns see harsher January nights than Attawapiskat 91A

The warmest part of a July day comes in at 22.9°C on average. Expect the most rain and snow in September and the least in February. By July afternoons alone, it runs cooler than 92% of Canadian towns. The heating season runs October to May: each of those months averages under 10°C.

July afternoons: cooler than 92% of Canadian towns

January nights: colder than almost every Canadian town

Rain and snow a year: drier than 67% of Canadian towns

Attawapiskat 91A has no ECCC normals station nearby: the figures come from Moosonee, 220 km south-east, so read them as the wider area’s climate.

July high

22.9°C

Typical Canadian town 25.5°C

January low

−24.4°C

Typical Canadian town −13.5°C

Rain & snow a year

700 mm

Typical Canadian town 883 mm

Frost days

216

a year at 0°C or below

A year in Attawapiskat 91A at a glance

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

Jan−13°C−24°CColdest nights

Feb−11°C−24°C

Mar−4°C−18°C

Apr4°C−8°C

May13°C0°C

Jun20°C6°C

Jul23°C10°CWarmest

Aug22°C9°C

Sep17°C6°CWettest

Oct9°C1°C

Nov now0°C−8°C

Dec−9°C−18°C

What stands out about Attawapiskat 91A’s climate

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

Colder than almost every Canadian townJanuary nights average −24.4°C, the coldest of the year. 870th mildest of 872 towns of 2,500+ in Ontario.A wider year than almost every Canadian townFrom January nights to July afternoons, the year spans 47.3°C.Cooler than 92% of Canadian townsJuly afternoons average 22.9°C, the warmest of the year. 868th warmest of 872 towns of 2,500+ in Ontario.

A normal year

What a year in Attawapiskat 91A feels like

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

Winter

−11°C / −22°C

110 mm of rain and snow

Spring

4°C / −9°C

136 mm of rain and snow

Summer

21°C / 8°C

239 mm of rain and snow, the wettest season

Autumn

9°C / 0°C

216 mm of rain and snow

−30°

−20°

−10°

0°

10°

20°

30°

−13°C−24°C

−11°C−24°C

−4°C−18°C

4°C−8°C

13°C0°C

20°C6°C

23°C10°C

22°C9°C

17°C6°C

9°C1°C

0°C−8°C

−9°C−18°C

JanFebMarAprMayJunJulAugSepOctNovDec

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

Frost & warm days

About 216 frosts and 69 warm days a year

The frost season runs September to June, and January freezes nearly every night. On about 73 nights a year the air falls below −20°C.

216

Frost days a year (0°C or below)

More frosts than almost every Canadian town

127

Days that stay below 0°C

Nights a year below −20°C

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

700 mm of precipitation in a typical year

872nd wettest of 872 towns of 2,500+ in Ontario. About 114 days a year bring 1 mm or more.

700 mm

Rain and snow a year

Drier than 67% of Canadian towns

503 mm

Of it as rain alone (72%)

91 mm

September, the wettest month

31 mm

February, the driest month

Rain and snow by month

Millimetres

91 mm

JFMAMJJASOND

Rain alone by month

Millimetres

90 mm

JFMAMJJASOND

Heating

Heating a home in Attawapiskat 91A

86% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.

6,580 heating degree days (below 18°C)a year, 1991–2020

1,256 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. Over a year, a home here needs more heating than almost every Canadian town.

Living here

Living with Attawapiskat 91A’s climate

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

Get outside

For long days outdoors, Jul and Aug bring highs of 17–27°C and lows of 8°C or more.

Parks & trails →

Wind chill

A wind chill below −20 is part of about 100 days a year here.

Humidex

Humid heat, a humidex over 30, comes on about 21 days a year.

Storms and extremes

Averages smooth over blizzards, ice storms, floods and heat waves; Attawapiskat 91A’s hazards page covers the risks.

Flood & hazards →

Weather station

ECCC’s normals location: Moosonee

Moosonee is a composite: ECCC joins 5 stations’ readings to make its 1991–2020 normals.

Distance from the town	220 km south-east
Station altitude	9 m
Completeness	at least 20 years
WMO standard normals	No
Snowfall from	No location within 100 km
Coldest reading, 1991–2020	−47.8°C
Hottest reading, 1991–2020	37.1°C
Average wind	11.2 km/h on average, most often from the west
Next-nearest location	Peawanuck, 301 km

Compared with other towns

How Attawapiskat 91A 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 Ontario.

July afternoons22.9°C

Attawapiskat 91AMedian Canadian town

20°C22°C24°C26°C28°C30°C

Cooler than 92% of Canadian towns868th warmest of 872 towns of 2,500+ in Ontario

January nights−24.4°C

Attawapiskat 91AMedian Canadian town

−25°C−20°C−15°C−10°C−5°C

Colder than almost every Canadian town870th mildest of 872 towns of 2,500+ in Ontario

Rain and snow a year700 mm

Attawapiskat 91AMedian Canadian town

05001,0001,5002,000

Drier than 67% of Canadian towns872nd wettest of 872 towns of 2,500+ in Ontario

Month by month

Attawapiskat 91A weather by month

Average daily high and low, mean temperature and precipitation by month, 1991–2020.

Month	High	Low	Mean	Rain & snow
January	−13.0°C	−24.4°C	−18.7°C	35 mm
February	−10.8°C	−23.9°C	−17.4°C	31 mm
March	−4.0°C	−18.0°C	−11.0°C	33 mm
April	3.8°C	−8.1°C	−2.2°C	37 mm
May	12.7°C	0.1°C	6.4°C	66 mm
June	19.8°C	5.7°C	12.7°C	68 mm
July	22.9°C	9.8°C	16.3°C	90 mm
August	21.6°C	9.4°C	15.5°C	80 mm
September	16.9°C	5.8°C	11.3°C	91 mm
October	8.9°C	0.6°C	4.9°C	72 mm
November	0.1°C	−7.5°C	−3.6°C	54 mm
December	−8.8°C	−18.2°C	−13.5°C	44 mm
Year	5.8°C	−5.7°C	0.1°C	700 mm

Year to year

A March here can run from −39.5°C to 24.5°C

Bars run from each month’s record low to its record high over 1991–2020; December is the month whose average wanders most from year to year (±3.7°C around −13.5°C), August the one that wanders least (±1.2°C).

−50°

−40°

−30°

−20°

−10°

0°

10°

20°

30°

40°

JanFebMarAprMayJunJulAugSepOctNovDec

Record low to record high, 1991–2020Normal

Sources

Where Attawapiskat 91A’s numbers come from

Averages over 30 years, not a forecast.

Normals: ECCC’s normals for Moosonee, 1991–2020, chosen as the nearest location with a full temperature record.
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: snowfall (no location within 100 km publishes a full year of it), sunshine (none for 1991–2020) and an altitude correction.

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

Questions about Attawapiskat 91A’s climate

How warm does Attawapiskat 91A get in summer?

At its warmest, in July, the normal high is 22.9°C.

How cold does Attawapiskat 91A get in winter?

Midwinter means January, when a typical night reaches −24.4°C.

How much rain and snow does Attawapiskat 91A get?

A normal year brings 700 mm, snow included as water: September is wettest at 91 mm, February driest at 31 mm.

Are these figures for Attawapiskat 91A itself?

No. The nearest normals are those of Moosonee, a long way from Attawapiskat 91A.

Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Attawapiskat 91A →

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).