Less rain and snow fall on Whitehorn than on 82% of Canadian towns: 445 mm a year
On a normal January night the air cools to about −13.5°C. The seasons are far apart: from a winter night to a summer afternoon the average spans 37°C. By July afternoons alone, it runs cooler than 80% of Canadian towns. Plan time outside for July and August, when highs sit at 23–24°C.
Read at Calgary (Airport), 4.4 km north-west: ECCC’s normals for 1991–2020.
A year in Whitehorn at a glance
Each month’s typical high and low, in °C.
What stands out about Whitehorn’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Whitehorn feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
193 frost days and 87 days above 20°C a year
Frost comes from September to May; in December almost every night freezes. Deep cold, under −20°C, comes on about 22 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
445 mm of precipitation in a typical year
June brings the most rain and snow; January, the least. About 72 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
139 cm of snow in a typical year
Expect snow from September to May, with about 24 cm in March, the snowiest month.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Whitehorn
85% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.
ECCC sums, over the year, how many degrees each day’s average falls short of 18°C. A house here needs more heating than 68% of Canadian towns.
Living with Whitehorn’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Seedlings can go out once the average last frost, around 21 May, has passed; autumn’s first, near 18 September, ends a season of about 119 days.
Plan time outside for Jul and Aug: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →Winter brings about 42 days with a wind chill below −20.
Count on some 9 humid days a year with the humidex past 30.
A normal year has no blizzard, flood or heat wave in it; Whitehorn’s hazards page looks at those.
Flood & hazards →ECCC’s normals location: Calgary (Airport)
ECCC builds the Calgary (Airport) normals from 2 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 4.4 km north-west |
| Station altitude | 1,099 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −39.7°C |
| Hottest reading, 1991–2020 | 36.5°C |
| Average wind | 13.8 km/h on average, most often from the south |
| Next-nearest location | Queenstown, 88 km |
How Whitehorn 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 Alberta.
Nearby towns’ climate
Places around Whitehorn whose figures come from another normals location. No closer places have figures: these lie 52–68 km from Whitehorn.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Whitehorn Calgary (Airport) | 23.5°C | −13.5°C | 445 mm |
| Wheatland County 52 km · Queenstown | 25.0°C 1.5°C warmer | −13.7°C about the same | 412 mm |
| Carstairs 53 km · Sundre | 22.8°C 0.7°C cooler | −18.0°C 4.5°C colder | 496 mm |
| Stoney 142, 143, 144 62 km · Banff | 22.5°C 1.0°C cooler | −13.5°C about the same | 454 mm |
Whitehorn 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 | −1.5°C | −13.5°C | −7.6°C | 10 mm | 17 cm |
| February | 0.1°C | −11.8°C | −5.9°C | 12 mm | 17 cm |
| March | 3.8°C | −8.1°C | −2.2°C | 18 mm | 24 cm |
| April | 10.8°C | −1.9°C | 4.5°C | 30 mm | 23 cm |
| May | 16.4°C | 3.4°C | 9.9°C | 61 mm | 10 cm |
| June | 19.7°C | 7.7°C | 13.7°C | 113 mm | under 1 cm |
| July | 23.5°C | 10.2°C | 16.9°C | 66 mm | 0 cm |
| August | 23.1°C | 9.2°C | 16.2°C | 54 mm | 0 cm |
| September | 18.3°C | 4.7°C | 11.5°C | 37 mm | 2 cm |
| October | 11.1°C | −1.3°C | 4.9°C | 17 mm | 12 cm |
| November | 4.1°C | −7.5°C | −1.7°C | 16 mm | 19 cm |
| December | −0.4°C | −12.1°C | −6.3°C | 13 mm | 16 cm |
| Year | 10.8°C | −1.8°C | 4.5°C | 445 mm | 139 cm |
December: −38.2°C at its coldest, 19.5°C at its warmest
Year to year, February varies most (a standard deviation of 4.1°C around −5.9°C) and June least (1.1°C).
Where Whitehorn’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the Canadian Climate Normals, 1991–2020, at Calgary (Airport) (the closest location with all twelve months of temperatures).
- Comparisons: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- 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 Whitehorn’s climate
How warm does Whitehorn get in summer?
July is the warmest month, with average highs of 23.5°C.
How cold does Whitehorn get in winter?
Overnight lows average −13.5°C in January, the coldest month.
How much rain and snow does Whitehorn get?
Some 445 mm falls in a year. Most of it comes in June (113 mm), the least in January (10 mm).
How long does snow stay on the ground?
About 93 days a year have 1 cm of snow or more on the ground.
Are these figures for Whitehorn itself?
Close to it: they are ECCC’s 1991–2020 normals for Calgary (Airport), just outside Whitehorn’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Whitehorn →
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).