Charleswood is drier than 82% of Canadian towns: 445 mm of rain and snow a year
Sunny July days climb to about 23.5°C. A year here swings 37°C from midwinter lows to midsummer highs. Its July afternoons stay fresher than in 80% of Canadian towns. Warm coats and heating bills mark the months from October to May, when means dip under 10°C.
Environment and Climate Change Canada’s 1991–2020 normals at its Calgary (Airport) station, 7.8 km north-east.
A year in Charleswood at a glance
Each month’s typical high and low, in °C.
What stands out about Charleswood’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Charleswood feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
Frost on 193 days, 20°C on 87
From September to May frost is routine, and in December it comes on almost every night. Some 22 nights a year drop under −20°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
Rain and melted snow: about 445 mm a year
June brings the most rain and snow; January, the least. On about 72 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
139 cm of snow in a typical year
The snow season runs September to May; March brings the most, about 24 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Charleswood
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 Charleswood’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Gardens get from about 21 May to 18 September without frost, around 119 days in all.
Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to Jul and Aug.
Parks & trails →Roughly 42 days a year feel colder than −20 in the wind.
About 9 days a year feel above 30 on the humidex.
Storms, floods and heat waves sit outside these normals; Charleswood’s hazards page covers them.
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 | 7.8 km north-east |
| 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 | Sundre, 86 km |
How Charleswood compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Alberta.
Nearby towns’ climate
Places around Charleswood whose figures come from another normals location. The nearest places to Charleswood with figures are 52–72 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Charleswood Calgary (Airport) | 23.5°C | −13.5°C | 445 mm |
| Carstairs 52 km · Sundre | 22.8°C 0.7°C cooler | −18.0°C 4.5°C colder | 496 mm |
| Stoney 142, 143, 144 53 km · Banff | 22.5°C 1.0°C cooler | −13.5°C about the same | 454 mm |
| Wheatland County 62 km · Queenstown | 25.0°C 1.5°C warmer | −13.7°C about the same | 412 mm |
Charleswood 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 |
A February here can run warm or cold, its average moving by about 4.1°C; the steadiest month is June
Each bar spans a month’s coldest and warmest readings over thirty years; December’s run from −38.2°C in 1996 to 19.5°C in 1999.
Where Charleswood’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 normals from ECCC for Calgary (Airport), its nearest location with complete temperatures.
- 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: hours of sunshine, missing from the 1991–2020 normals, and a height correction: the town has no elevation on file.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Charleswood’s climate
How warm does Charleswood get in summer?
Highs reach 23.5°C on an average July day; no month is warmer.
How cold does Charleswood get in winter?
At its coldest, in January, the normal low is −13.5°C.
How much rain and snow does Charleswood 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?
Snow lies on the ground for about 93 days in a normal year.
Are these figures for Charleswood itself?
Almost: ECCC’s Calgary (Airport) location, which gives these figures, lies a short way outside Charleswood.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Charleswood →
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).