Lower Mount Royal is drier than 82% of Canadian towns: 445 mm of rain and snow a year
January mornings start at about −13.5°C. A year here swings 37°C from midwinter lows to midsummer highs. Its July afternoons stay fresher than in 80% of Canadian towns. An umbrella or a shovel earns its place on about 72 days a year with 1 mm or more.
Figures: ECCC’s 1991–2020 normals for Calgary (Airport) (11 km north-east).
A year in Lower Mount Royal at a glance
Each month’s typical high and low, in °C.
What stands out about Lower Mount Royal’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Lower Mount Royal feels like
Each season’s and each month’s usual high and low, 1991–2020.
Frost on 193 days, 20°C on 87
The frost season runs September to May, and December freezes nearly every night. 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 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
From September to May snow is likely; March is the peak, at about 24 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Lower Mount Royal
85% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.
Degree days add up how far each day’s mean temperature falls below 18°C over a year. Homes here need more heating than 68% of Canadian towns.
Living with Lower Mount Royal’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Plant out after about 21 May; the first frost of autumn usually arrives near 18 September, leaving roughly 119 days without frost.
Warm afternoons without cold nights, 17–27°C and 8°C or more, mark Jul and Aug.
Parks & trails →Frostbite weather, a wind chill under −20, turns up on about 42 days a year.
On some 9 days a year the humidex climbs past 30.
Averages smooth over blizzards, ice storms, floods and heat waves; Lower Mount Royal’s hazards page covers the risks.
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 | 11 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 | Queenstown, 91 km |
How Lower Mount Royal 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
The nearest places on a normals location of their own: those that share Lower Mount Royal’s would only repeat its figures. Lower Mount Royal has few close neighbours with figures, so the list reaches 55–73 km out.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Lower Mount Royal Calgary (Airport) | 23.5°C | −13.5°C | 445 mm |
| Stoney 142, 143, 144 55 km · Banff | 22.5°C 1.0°C cooler | −13.5°C about the same | 454 mm |
| Carstairs 58 km · Sundre | 22.8°C 0.7°C cooler | −18.0°C 4.5°C colder | 496 mm |
| Wheatland County 60 km · Queenstown | 25.0°C 1.5°C warmer | −13.7°C about the same | 412 mm |
Lower Mount Royal 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 |
In December, anything from −38.2°C to 19.5°C
Bars run from each month’s record low to its record high over 1991–2020; February is the month whose average wanders most from year to year (±4.1°C around −5.9°C), June the one that wanders least (±1.1°C).
Where Lower Mount Royal’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: sunshine, which none of ECCC’s 450 locations publishes for 1991–2020, and the town’s own height above sea level, so no figure is adjusted for altitude.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Lower Mount Royal’s climate
How warm does Lower Mount Royal get in summer?
Expect highs near 23.5°C in July, the hottest month on average.
How cold does Lower Mount Royal get in winter?
Overnight lows average −13.5°C in January, the coldest month.
How much rain and snow does Lower Mount Royal get?
Over twelve months, rain and melted snow come to 445 mm; the range runs from 10 mm in January to 113 mm in June.
How long does snow stay on the ground?
Roughly 93 days a year start with snow cover of 1 cm or more.
Are these figures for Lower Mount Royal itself?
Nearly: Calgary (Airport), the location behind them, sits just beyond Lower Mount Royal’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Lower Mount Royal →
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).