Glamorgan is drier than 82% of Canadian towns: 445 mm of rain and snow a year
The coldest hours of a January night bottom out at −13.5°C on average. Some 37°C separates winter nights from summer afternoons. In July, afternoons here are cooler than in 80% of Canadian towns. About 72 days a year bring 1 mm of precipitation or more.
Figures: ECCC’s 1991–2020 normals for Calgary (Airport) (15 km north-east).
A year in Glamorgan at a glance
Each month’s typical high and low, in °C.
What stands out about Glamorgan’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Glamorgan feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
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. 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
Rain and melted snow: about 445 mm a year
June is the wettest month and January the driest.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 139 cm in a normal year
Snow falls from September to May, most of all in March (about 24 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Glamorgan
85% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.
Heating degree days total each day’s gap between its mean temperature and 18°C. In heating terms, homes need more heating than 68% of Canadian towns.
Living with Glamorgan’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Frost usually lets go around 21 May and returns near 18 September, about 119 days apart.
Warm afternoons without cold nights, 17–27°C and 8°C or more, mark Jul and Aug.
Parks & trails →About 42 days a year bring a wind chill under −20, when bare skin chills fast.
Humid summer days, the humidex above 30, number about 9 a year.
What averages leave out, the floods and ice storms, is on Glamorgan’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 | 15 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, 93 km |
How Glamorgan 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
Nearby places read from a different ECCC location (places on Glamorgan’s own would show the same figures). No closer places have figures: these lie 52–72 km from Glamorgan.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Glamorgan Calgary (Airport) | 23.5°C | −13.5°C | 445 mm |
| Stoney 142, 143, 144 52 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 64 km · Queenstown | 25.0°C 1.5°C warmer | −13.7°C about the same | 412 mm |
Glamorgan 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 |
Two years in three, February’s average lands within 4.1°C of normal, against the steadier June
Each bar spans a month’s coldest and warmest readings over thirty years; December’s run from −38.2°C in 1996 to 19.5°C in 1999.
Where Glamorgan’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: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- 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 Glamorgan’s climate
How warm does Glamorgan get in summer?
The warmest month is July, when afternoons average 23.5°C.
How cold does Glamorgan get in winter?
Winter bottoms out in January, with lows near −13.5°C.
How much rain and snow does Glamorgan 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?
A layer of at least 1 cm stays down on about 93 days a year.
Are these figures for Glamorgan itself?
They are the normals for Calgary (Airport), measured just outside Glamorgan itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Glamorgan →
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).