Photo: danrmg · CC BY 2.0

Climate in St. Louis No. 431 · ECCC 1991–2020 normals

St. Louis No. 431 sits near the bottom of Canadian towns for winter warmth

Peak summer warmth arrives in July, with afternoons near 24.2°C. June is the wettest month here, with about 7.5 times the rain and snow of February. Counting rain and snow together, it is drier than 86% of Canadian towns. Warm coats and heating bills mark the months from October to April, when means dip under 10°C.

July afternoons: cooler than 69% of Canadian towns

January nights: colder than almost every Canadian town

Rain and snow a year: drier than 86% of Canadian towns

The nearest ECCC normals location to St. Louis No. 431 is Prince Albert, 48 km north, and every figure on this page is its.

July high

24.2°C

Typical Canadian town 25.5°C

January low

−22.8°C

Typical Canadian town −13.5°C

Rain & snow a year

432 mm

Typical Canadian town 883 mm

Snowfall a year

112 cm

Typical Canadian town 141 cm

Frost days

209

a year at 0°C or below

Frost-free days

113

24 May to 15 Sep

A year in St. Louis No. 431 at a glance

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

Jan−12°C−23°CColdest nightsSnowiest

Feb−8°C−20°C

Mar−1°C−13°C

Apr9°C−4°C

May17°C3°CLast frost ~24 May

Jun22°C9°CWettest

Jul24°C12°CWarmest

Aug23°C10°C

Sep18°C4°CFirst frost ~15 Sep

Oct9°C−2°C

Nov now−2°C−11°C

Dec−9°C−19°C

What stands out about St. Louis No. 431’s climate

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

Colder than almost every Canadian townJanuary nights average −22.8°C, the coldest of the year. 98th mildest of 105 towns of 2,500+ in Saskatchewan.A wider year than 96% of Canadian townsFrom January nights to July afternoons, the year spans 47.0°C.Less snowy than 87% of Canadian townsAbout 112 cm of snow falls in a year, most of it in January.

A normal year

What a year in St. Louis No. 431 feels like

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

Winter

−10°C / −21°C

46 mm, with 58 cm of snow

Spring

8°C / −5°C

85 mm, with 28 cm of snow

Summer

23°C / 10°C

214 mm of rain and snow, the wettest season

Autumn

8°C / −3°C

88 mm, with 26 cm of snow

−30°

−20°

−10°

0°

10°

20°

30°

−12°C−23°C

−8°C−20°C

−1°C−13°C

9°C−4°C

17°C3°C

22°C9°C

24°C12°C

23°C10°C

18°C4°C

9°C−2°C

−2°C−11°C

−9°C−19°C

JanFebMarAprMayJunJulAugSepOctNovDec

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

Frost & warm days

About 209 frosts and 94 warm days a year

From September to May frost is routine, and in January it comes on almost every night. On about 58 nights a year the air falls below −20°C.

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

24 May 15 Sep

JanFebMarAprMayJunJulAugSepOctNovDec

209

Frost days a year (0°C or below)

More frosts than 96% of Canadian towns

120

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

432 mm of precipitation in a typical year

9th wettest of 105 towns of 2,500+ in Saskatchewan. On about 71 days a year, 1 mm or more falls.

432 mm

Rain and snow a year

Drier than 86% of Canadian towns

344 mm

Of it as rain alone (80%)

86 mm

June, the wettest month

12 mm

February, the driest month

Rain and snow by month

Millimetres

86 mm

JFMAMJJASOND

Rain alone by month

Millimetres

86 mm

JFMAMJJASOND

Snow

About 112 cm of snow a year

From October to May snow is likely; January is the peak, at about 23 cm.

112 cm

Snowfall a year

Less snowy than 87% of Canadian towns

Days a year with 0.2 cm of snow or more

146

Days a year with 1 cm or more on the ground

23 cm

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

Snowfall by month

Centimetres

23 cm

JFMAMJJASOND

Snow on the ground by month

Centimetres at month’s end

23 cm

JFMAMJJASOND

Heating

Heating a home in St. Louis No. 431

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

6,112 heating degree days (below 18°C)a year, 1991–2020

1,498 growing degree days (above 5°C)a year, 1991–2020

A day averaging 10 degrees under 18°C adds 10 to the total; warm days add nothing. Homes here need more heating than almost every Canadian town.

Living here

Living with St. Louis No. 431’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 24 May to about 15 September, some 113 days in a normal year.

Get outside

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

Parks & trails →

Wind chill

Frostbite weather, a wind chill under −20, turns up on about 84 days a year.

Humidex

Expect around 17 sticky days a year with the humidex above 30.

Storms and extremes

For blizzards, floods and wildfire, turn to St. Louis No. 431’s hazards page.

Flood & hazards →

Weather station

ECCC’s normals location: Prince Albert

Behind the 1991–2020 normals for Prince Albert are 3 stations, which ECCC combines into one record.

Distance from the town	48 km north
Station altitude	428 m
Completeness	at least 25 years
WMO standard normals	No
Coldest reading, 1991–2020	−46.1°C
Hottest reading, 1991–2020	36.5°C
Average wind	11.8 km/h on average, most often from the west
Next-nearest location	Melfort, 76 km

Compared with other towns

How St. Louis No. 431 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 Saskatchewan.

July afternoons24.2°C

St. Louis No. 431Median Canadian town

20°C22°C24°C26°C28°C

Cooler than 69% of Canadian towns

January nights−22.8°C

St. Louis No. 431Median Canadian town

−25°C−20°C−15°C−10°C

Colder than almost every Canadian town98th mildest of 105 towns of 2,500+ in Saskatchewan

Rain and snow a year432 mm

St. Louis No. 431Median Canadian town

05001,0001,500

Drier than 86% of Canadian towns9th wettest of 105 towns of 2,500+ in Saskatchewan

Snowfall a year112 cm

St. Louis No. 431Median Canadian town

0100200300

Less snowy than 87% of Canadian towns

Next door

Nearby towns’ climate

The nearest places on a normals location of their own: those that share St. Louis No. 431’s would only repeat its figures. No closer place has figures: this one lies 43 km from St. Louis No. 431.

Town	July high	January low	Rain & snow
St. Louis No. 431 Prince Albert	24.2°C	−22.8°C	432 mm
Rosthern 43 km · Saskatoon Diefenbaker (Airport)	25.0°C 0.8°C warmer	−20.7°C 2.1°C milder	357 mm

Month by month

St. Louis No. 431 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	−11.6°C	−22.8°C	−17.2°C	19 mm	23 cm
February	−7.9°C	−20.3°C	−14.1°C	12 mm	14 cm
March	−1.4°C	−13.4°C	−7.4°C	15 mm	15 cm
April	9.1°C	−3.8°C	2.7°C	28 mm	10 cm
May	17.3°C	2.7°C	10.1°C	43 mm	2 cm
June	21.5°C	8.7°C	15.2°C	86 mm	0 cm
July	24.2°C	11.6°C	17.9°C	77 mm	0 cm
August	23.4°C	9.8°C	16.7°C	50 mm	0 cm
September	17.6°C	4.2°C	10.9°C	42 mm	under 1 cm
October	8.5°C	−2.4°C	3.1°C	30 mm	10 cm
November	−2.0°C	−10.9°C	−6.5°C	16 mm	16 cm
December	−9.3°C	−19.4°C	−14.4°C	16 mm	20 cm
Year	7.4°C	−4.7°C	1.4°C	432 mm	112 cm

Year to year

From −30.4°C to 30.3°C: April’s coldest and warmest days since 1991

Year to year, December varies most (a standard deviation of 4.3°C around −14.4°C) and June least (1.2°C).

−50°

−40°

−30°

−20°

−10°

0°

10°

20°

30°

40°

JanFebMarAprMayJunJulAugSepOctNovDec

Record low to record high, 1991–2020Normal

Sources

Where St. Louis No. 431’s numbers come from

Averages over 30 years, not a forecast.

Normals: the closest ECCC location with twelve months of temperature normals, Prince Albert, 1991–2020.
Comparisons: the towns and neighbourhoods of 2,500+ across Canada, each on its nearest normals location, without the city totals or the reserves.
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 St. Louis No. 431’s climate

How warm does St. Louis No. 431 get in summer?

Midsummer means July, with afternoons near 24.2°C on a typical day.

How cold does St. Louis No. 431 get in winter?

The year’s coldest nights belong to January, at about −22.8°C.

How much rain and snow does St. Louis No. 431 get?

Some 432 mm falls in a year. Most of it comes in June (86 mm), the least in February (12 mm).

How long does snow stay on the ground?

The ground is white, with 1 cm or more, on some 146 days a year.

Are these figures for St. Louis No. 431 itself?

They are the closest available: the normals for Prince Albert, since St. Louis No. 431 has none.

Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for St. Louis No. 431 →

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).