Glenbrook is drier than 82% of Canadian towns: 445 mm of rain and snow a year
July afternoons average 23.5°C. Summers stay cool: July afternoons here are cooler than in 80% of Canadian towns. Seasons differ by 37°C, from the coldest nights to the warmest afternoons. The heating season runs October to May: each of those months averages under 10°C.
1991–2020 normals from ECCC’s Calgary (Airport) location, 14 km north-east.
A year in Glenbrook at a glance
Each month’s typical high and low, in °C.
What stands out about Glenbrook’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Glenbrook feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
About 193 frosts and 87 warm days a year
From September to May frost is routine, and in December it comes on almost every night. 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
Rain and melted snow: about 445 mm a year
The most falls in June, the least in January. Some 72 days a year see 1 mm of rain or snow or more.
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 Glenbrook
85% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.
Every day colder than 18°C on average adds its gap in degrees to the year’s heating total. By this count, homes here need more heating than 68% of Canadian towns.
Living with Glenbrook’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
About 119 days a year pass without frost, from an average last frost of 21 May to a first of 18 September.
Afternoons of 17–27°C and nights of at least 8°C arrive in Jul and Aug.
Parks & trails →Frostbite weather, a wind chill under −20, turns up on about 42 days a year.
Muggy heat with a humidex over 30 arrives on about 9 days a year.
For blizzards, floods and wildfire, turn to Glenbrook’s hazards page.
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 | 14 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, 91 km |
How Glenbrook 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
Nearby places read from a different ECCC location (places on Glenbrook’s own would show the same figures). No closer places have figures: these lie 51–70 km from Glenbrook.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Glenbrook Calgary (Airport) | 23.5°C | −13.5°C | 445 mm |
| Stoney 142, 143, 144 51 km · Banff | 22.5°C 1.0°C cooler | −13.5°C about the same | 454 mm |
| Carstairs 59 km · Sundre | 22.8°C 0.7°C cooler | −18.0°C 4.5°C colder | 496 mm |
| Wheatland County 64 km · Queenstown | 25.0°C 1.5°C warmer | −13.7°C about the same | 412 mm |
Glenbrook 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 |
The month with the widest range: December, −38.2°C to 19.5°C
Two years in three, February’s average falls within 4.1°C of its normal of −5.9°C; June keeps to within 1.1°C.
Where Glenbrook’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: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- 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 Glenbrook’s climate
How warm does Glenbrook get in summer?
Expect highs near 23.5°C in July, the hottest month on average.
How cold does Glenbrook get in winter?
Lows sink to −13.5°C on an average January night.
How much rain and snow does Glenbrook get?
Rain and snow, with snow counted as water, total 445 mm a year; June leads with 113 mm and January trails with 10 mm.
How long does snow stay on the ground?
Around 93 days a year see 1 cm of snow or more lying.
Are these figures for Glenbrook itself?
Almost: ECCC’s Calgary (Airport) location, which gives these figures, lies a short way outside Glenbrook.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Glenbrook →
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).