Less rain and snow fall on Rocky Ridge than on 82% of Canadian towns: 445 mm a year
On a normal January night the air cools to about −13.5°C. June is the wettest month, January the driest. Its July afternoons stay fresher than in 80% of Canadian towns. The furnace earns its keep from October to May, the months that average under 10°C.
Read at Calgary (Airport), 17 km east: ECCC’s normals for 1991–2020.
A year in Rocky Ridge at a glance
Each month’s typical high and low, in °C.
What stands out about Rocky Ridge’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Rocky Ridge 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. 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
445 mm of precipitation in a typical year
About 72 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 139 cm in a normal 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 Rocky Ridge
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. By this count, homes here need more heating than 68% of Canadian towns.
Living with Rocky Ridge’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
From about 21 May to 18 September the garden is usually clear of frost, some 119 days.
The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: Jul and Aug.
Parks & trails →Wind chill falls below −20 on about 42 days a year: cover skin and dress in layers.
A humidex above 30 marks about 9 days in a normal year.
The normals describe a typical year, not its worst days; the hazards page covers Rocky Ridge’s.
Flood & hazards →ECCC’s normals location: Calgary (Airport)
Calgary (Airport) is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 17 km 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, 77 km |
How Rocky Ridge compares
Placed among 2,611 Canadian towns and neighbourhoods of 2,500+, each on its nearest normals location; each dot is another location used in Alberta.
Nearby towns’ climate
Places around Rocky Ridge whose figures come from another normals location. Rocky Ridge has few close neighbours with figures, so the list reaches 42–65 km out.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Rocky Ridge Calgary (Airport) | 23.5°C | −13.5°C | 445 mm |
| Stoney 142, 143, 144 42 km · Banff | 22.5°C 1.0°C cooler | −13.5°C about the same | 454 mm |
| Carstairs 47 km · Sundre | 22.8°C 0.7°C cooler | −18.0°C 4.5°C colder | 496 mm |
Rocky Ridge 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 |
December has run from −38.2°C to 19.5°C in thirty years
The month to count on least is February: one year in three its average strays more than 4.1°C from −5.9°C. June moves least, typically by 1.1°C.
Where Rocky Ridge’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: 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: 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 Rocky Ridge’s climate
How warm does Rocky Ridge get in summer?
In July, the warmest month, the typical high is 23.5°C.
How cold does Rocky Ridge get in winter?
The coldest nights come in January, averaging −13.5°C.
How much rain and snow does Rocky Ridge 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?
Roughly 93 days a year start with snow cover of 1 cm or more.
Are these figures for Rocky Ridge itself?
Nearly: Calgary (Airport), the location behind them, sits just beyond Rocky Ridge’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Rocky Ridge →
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).