Garrison Woods is drier than 82% of Canadian towns: 445 mm of rain and snow a year
July afternoons average 23.5°C. June is the wettest month, January the driest. Summers stay cool: July afternoons here are cooler than in 80% of Canadian towns. The outdoor season, with highs of 23–24°C, runs through July and August.
Environment and Climate Change Canada’s 1991–2020 normals at its Calgary (Airport) station, 14 km north-east.
A year in Garrison Woods at a glance
Each month’s typical high and low, in °C.
What stands out about Garrison Woods’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Garrison Woods feels like
Each season’s and each month’s usual high and low, 1991–2020.
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
Rain and melted snow: about 445 mm a year
On about 72 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 139 cm of snow a 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 Garrison Woods
85% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.
The total grows by a degree for every degree a day’s mean sits under 18°C. That means homes here need more heating than 68% of Canadian towns.
Living with Garrison Woods’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Wait until about 21 May to plant out; frost tends to come back around 18 September, about 119 days later.
Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to Jul and Aug.
Parks & trails →Winter brings about 42 days with a wind chill below −20.
Humid summer days, the humidex above 30, number about 9 a year.
Severe weather is a separate story from the averages: see Garrison Woods’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 | 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 | Queenstown, 92 km |
How Garrison Woods 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 Garrison Woods’s own would show the same figures). Garrison Woods has few close neighbours with figures, so the list reaches 54–73 km out.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Garrison Woods Calgary (Airport) | 23.5°C | −13.5°C | 445 mm |
| Stoney 142, 143, 144 54 km · Banff | 22.5°C 1.0°C cooler | −13.5°C about the same | 454 mm |
| Carstairs 60 km · Sundre | 22.8°C 0.7°C cooler | −18.0°C 4.5°C colder | 496 mm |
| Wheatland County 62 km · Queenstown | 25.0°C 1.5°C warmer | −13.7°C about the same | 412 mm |
Garrison Woods weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and 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 most changeable month: February, give or take 4.1°C; the steadiest, June
Over 1991–2020, December saw both −38.2°C (1996) and 19.5°C (1999), the widest span of any month.
Where Garrison Woods’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Calgary (Airport), 1991–2020, chosen as the nearest location with a full temperature record.
- Comparisons: every place of 2,500+ in Canada but the city hubs and the reserves, each on its nearest ECCC location.
- 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 Garrison Woods’s climate
How warm does Garrison Woods get in summer?
July is the warmest month, with average highs of 23.5°C.
How cold does Garrison Woods get in winter?
Lows sink to −13.5°C on an average January night.
How much rain and snow does Garrison Woods get?
Precipitation totals 445 mm a year, with June the wettest month (113 mm) and January the driest (10 mm).
How long does snow stay on the ground?
Snow cover of 1 cm or more lasts about 93 days in a typical year.
Are these figures for Garrison Woods itself?
Nearly: Calgary (Airport), the location behind them, sits just beyond Garrison Woods’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Garrison Woods →
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).