Precipitation in Somerset trails that of 82% of Canadian towns: 445 mm a year
Expect July afternoons of about 23.5°C. Its July afternoons stay fresher than in 80% of Canadian towns. Of all months, June brings the most precipitation and January the least. An umbrella or a shovel earns its place on about 72 days a year with 1 mm or more.
Borrowed figures: Somerset has no normals station, so these come from Calgary (Airport), 25 km north.
A year in Somerset at a glance
Each month’s typical high and low, in °C.
What stands out about Somerset’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Somerset feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
Frost on 193 days, 20°C on 87
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
Rain and melted snow: about 445 mm a year
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
139 cm of snow in a typical 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 Somerset
85% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.
ECCC sums, over the year, how many degrees each day’s average falls short of 18°C. Over a year, a home here needs more heating than 68% of Canadian towns.
Living with Somerset’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Tender plants are usually safe from around 21 May until frost returns near 18 September: about 119 days.
For long days outdoors, Jul and Aug bring highs of 17–27°C and lows of 8°C or more.
Parks & trails →Roughly 42 days a year feel colder than −20 in the wind.
Muggy heat with a humidex over 30 arrives on about 9 days a year.
A typical year is calm by definition; Somerset’s hazards page covers the exceptions.
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 | 25 km north |
| 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, 84 km |
How Somerset 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
The nearest places on a normals location of their own: those that share Somerset’s would only repeat its figures. The nearest places to Somerset with figures are 60–73 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Somerset Calgary (Airport) | 23.5°C | −13.5°C | 445 mm |
| Wheatland County 60 km · Queenstown | 25.0°C 1.5°C warmer | −13.7°C about the same | 412 mm |
| Stoney 142, 143, 144 61 km · Banff | 22.5°C 1.0°C cooler | −13.5°C about the same | 454 mm |
| Nanton 65 km · Claresholm | 25.2°C 1.7°C warmer | −13.2°C about the same | 428 mm |
| Carstairs 73 km · Sundre | 22.8°C 0.7°C cooler | −18.0°C 4.5°C colder | 496 mm |
Somerset 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
February is the least predictable month: about two years in three its average lands within 4.1°C of the normal, −5.9°C. June is the steadiest, within 1.1°C.
Where Somerset’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 normals from ECCC for Calgary (Airport), its nearest location with complete temperatures.
- Comparisons: the towns and neighbourhoods of 2,500+ across Canada, each on its nearest normals location, without the city totals or the reserves.
- Not on this page: a sunshine figure (ECCC published none for 1991–2020) and any lapse-rate correction for height, as the town has no elevation here.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Somerset’s climate
How warm does Somerset get in summer?
The warmest month is July, when afternoons average 23.5°C.
How cold does Somerset get in winter?
Expect nights around −13.5°C in January; no month is colder.
How much rain and snow does Somerset get?
Count on roughly 445 mm a year, heaviest in June (113 mm) and lightest in January (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 Somerset itself?
Not as such: Calgary (Airport) is the nearest normals location, and Somerset has none.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Somerset →
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).