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Climate in Sundance · ECCC 1991–2020 normals

Dry weather: only 445 mm of rain and snow a year falls on Sundance, less than on 82% of Canadian towns

January mornings start at about −13.5°C. From frozen January to warm July, readings climb 37°C. By July afternoons alone, it runs cooler than 80% of Canadian towns. 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: milder than 51% of Canadian towns
Rain and snow a year: drier than 82% of Canadian towns

Read at Calgary (Airport), 25 km north: ECCC’s normals for 1991–2020.

A year in Sundance at a glance

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

Jan−2°C−14°CColdest nights
Feb0°C−12°C
Mar4°C−8°CSnowiest
Apr11°C−2°C
May16°C3°CLast frost ~21 May
Jun20°C8°CWettest
Jul24°C10°CWarmest
Aug23°C9°C
Sep18°C5°CFirst frost ~18 Sep
Oct11°C−1°C
Nov now4°C−8°C
Dec0°C−12°C

What stands out about Sundance’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 Sundance feels like

Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.

Winter
−1°C / −12°C
34 mm, with 50 cm of snow
Spring
10°C / −2°C
108 mm, with 56 cm of snow
Summer
22°C / 9°C
232 mm of rain and snow, the wettest season
Autumn
11°C / −1°C
71 mm, with 33 cm of snow
Best months to be outsideJulAugHighs of 17–27°C and nights of 8°C or more
Frost & warm days

193 frost days and 87 days above 20°C a year

Frost comes from September to May; in December almost every night freezes. Some 22 nights a year drop under −20°C.

193
Frost days a year (0°C or below)
More frosts than 79% of Canadian towns
61
Days that stay below 0°C
22
Nights a year below −20°C
87
Days a year above 20°C
5
Days a year above 30°C

Frost days by month

Average days at 0°C or below

30
JFMAMJJASOND

Days above 20°C by month

Average days

24
JFMAMJJASOND
Rain & snow

About 445 mm of rain and snow a year

June brings the most rain and snow; January, the least.

445 mm
Rain and snow a year
Drier than 82% of Canadian towns
342 mm
Of it as rain alone (77%)
113 mm
June, the wettest month
10 mm
January, the driest month

Rain and snow by month

Millimetres

113 mm
JFMAMJJASOND

Rain alone by month

Millimetres

113 mm
JFMAMJJASOND
Snow

About 139 cm of snow a year

Snow falls from September to May, most of all in March (about 24 cm).

139 cm
Snowfall a year
Less snowy than 54% of Canadian towns
55
Days a year with 0.2 cm of snow or more
93
Days a year with 1 cm or more on the ground
6 cm
Snow on the ground at the end of December, the deepest month

Snowfall by month

Centimetres

24 cm
JFMAMJJASOND

Snow on the ground by month

Centimetres at month’s end

6 cm
JFMAMJJASOND
Heating

Heating a home in Sundance

85% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.

4,994 heating degree days (below 18°C)a year, 1991–2020
1,448 growing degree days (above 5°C)a year, 1991–2020

Each day the mean sits under 18°C adds its shortfall; a year’s total is its heating degree days. Over a year, a home here needs more heating than 68% of Canadian towns.

Living here

Living with Sundance’s climate

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

The garden window

From about 21 May to 18 September the garden is usually clear of frost, some 119 days.

Get outside

The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: Jul and Aug.

Parks & trails →
Wind chill

Frostbite weather, a wind chill under −20, turns up on about 42 days a year.

Humidex

Summer brings about 9 days when the humidex passes 30.

Storms and extremes

Thirty years of averages say little about one bad storm; Sundance’s hazards page does.

Flood & hazards →
Weather station

ECCC’s normals location: Calgary (Airport)

Calgary (Airport) is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.

Distance from the town25 km north
Station altitude1,099 m
Completenessat least 20 years
WMO standard normalsNo
Coldest reading, 1991–2020−39.7°C
Hottest reading, 1991–202036.5°C
Average wind13.8 km/h on average, most often from the south
Next-nearest locationQueenstown, 81 km
Compared with other towns

How Sundance 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
SundanceMedian Canadian town
20°C22°C24°C26°C28°C
Cooler than 80% of Canadian towns
January nights−13.5°C
SundanceMedian Canadian town
−25°C−20°C−15°C−10°C
Milder than 51% of Canadian towns
Rain and snow a year445 mm
SundanceMedian Canadian town
05001,0001,500
Drier than 82% of Canadian towns
Snowfall a year139 cm
SundanceMedian Canadian town
0100200300
Less snowy than 54% of Canadian towns
Next door

Nearby towns’ climate

Places around Sundance whose figures come from another normals location. No closer places have figures: these lie 57–73 km from Sundance.

TownJuly highJanuary lowRain & snow
Sundance Calgary (Airport)23.5°C−13.5°C445 mm
Wheatland County 57 km · Queenstown25.0°C 1.5°C warmer−13.7°C about the same412 mm
Stoney 142, 143, 144 64 km · Banff22.5°C 1.0°C cooler−13.5°C about the same454 mm
Nanton 64 km · Claresholm25.2°C 1.7°C warmer−13.2°C about the same428 mm
Carstairs 73 km · Sundre22.8°C 0.7°C cooler−18.0°C 4.5°C colder496 mm
Month by month

Sundance weather by month

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

MonthHighLowMeanRain & snowSnow
January−1.5°C−13.5°C−7.6°C10 mm17 cm
February0.1°C−11.8°C−5.9°C12 mm17 cm
March3.8°C−8.1°C−2.2°C18 mm24 cm
April10.8°C−1.9°C4.5°C30 mm23 cm
May16.4°C3.4°C9.9°C61 mm10 cm
June19.7°C7.7°C13.7°C113 mmunder 1 cm
July23.5°C10.2°C16.9°C66 mm0 cm
August23.1°C9.2°C16.2°C54 mm0 cm
September18.3°C4.7°C11.5°C37 mm2 cm
October11.1°C−1.3°C4.9°C17 mm12 cm
November4.1°C−7.5°C−1.7°C16 mm19 cm
December−0.4°C−12.1°C−6.3°C13 mm16 cm
Year10.8°C−1.8°C4.5°C445 mm139 cm
Year to year

February strays furthest from its normal year to year, by 4.1°C; June the least

Records from 1991 to 2020: no month spans more than December, between −38.2°C (1996) and 19.5°C (1999).

Record low to record high, 1991–2020Normal
Sources

Where Sundance’s numbers come from

Averages over 30 years, not a forecast.

  • Normals: the closest ECCC location with twelve months of temperature normals, Calgary (Airport), 1991–2020.
  • Comparisons: Canadian towns and neighbourhoods of at least 2,500, each placed by its nearest location (city totals and reserves excluded).
  • 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 Sundance’s climate

How warm does Sundance get in summer?

Midsummer means July, with afternoons near 23.5°C on a typical day.

How cold does Sundance get in winter?

Overnight lows average −13.5°C in January, the coldest month.

How much rain and snow does Sundance get?

The year adds up to 445 mm. June is the peak month (113 mm) and January the low one (10 mm).

How long does snow stay on the ground?

In a normal winter there are about 93 days with at least 1 cm of snow lying.

Are these figures for Sundance itself?

They are the normals for Calgary (Airport), measured just outside Sundance itself.

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

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).