Less rain and snow fall on Rosedale than on 82% of Canadian towns: 445 mm a year
Midsummer highs settle at about 23.5°C. Summers stay cool: July afternoons here are cooler than in 80% of Canadian towns. Temperatures cover 37°C across the year, low to high. Plan for rain or snow on about 72 days a year, the days with 1 mm or more.
Environment and Climate Change Canada’s 1991–2020 normals at its Calgary (Airport) station, 8.1 km north-east.
A year in Rosedale at a glance
Each month’s typical high and low, in °C.
What stands out about Rosedale’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Rosedale 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. On about 22 nights a year the air falls below −20°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 445 mm of rain and snow a year
June is the wettest month and January the driest.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 139 cm of snow a 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 Rosedale
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. Over a year, a home here needs more heating than 68% of Canadian towns.
Living with Rosedale’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 →Plan for about 42 days a year with a wind chill below −20.
About 9 days a year feel above 30 on the humidex.
What averages leave out, the floods and ice storms, is on Rosedale’s hazards page.
Flood & hazards →ECCC’s normals location: Calgary (Airport)
Behind the 1991–2020 normals for Calgary (Airport) are 2 stations, which ECCC combines into one record.
| Distance from the town | 8.1 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, 90 km |
How Rosedale 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
Nearby places read from a different ECCC location (places on Rosedale’s own would show the same figures). Rosedale has few close neighbours with figures, so the list reaches 55–74 km out.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Rosedale Calgary (Airport) | 23.5°C | −13.5°C | 445 mm |
| Carstairs 55 km · Sundre | 22.8°C 0.7°C cooler | −18.0°C 4.5°C colder | 496 mm |
| Stoney 142, 143, 144 55 km · Banff | 22.5°C 1.0°C cooler | −13.5°C about the same | 454 mm |
| Wheatland County 59 km · Queenstown | 25.0°C 1.5°C warmer | −13.7°C about the same | 412 mm |
Rosedale weather by month
Average daily high and low, mean temperature, rain and snow (as water) and snowfall by month, 1991–2020.
| 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
The thirty-year records stretch furthest in December: a low of −38.2°C in 1996 and a high of 19.5°C in 1999.
Where Rosedale’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s 1991–2020 Canadian Climate Normals for Calgary (Airport), the nearest location with a full year of temperatures.
- Comparisons: every Canadian town and neighbourhood of 2,500 or more, each read from its own nearest location; city totals and reserves are left out.
- 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 Rosedale’s climate
How warm does Rosedale get in summer?
The year’s warmest days come in July, with highs averaging 23.5°C.
How cold does Rosedale get in winter?
January nights average −13.5°C, the coldest of the year.
How much rain and snow does Rosedale get?
Around 445 mm a year in all, from 113 mm in June down to 10 mm in January.
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 Rosedale itself?
Close to it: they are ECCC’s 1991–2020 normals for Calgary (Airport), just outside Rosedale’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Rosedale →
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).