Precipitation in Sherwood trails that of 82% of Canadian towns: 445 mm a year
January nights here settle around −13.5°C. The year swings widely: the coldest month’s nights and the warmest month’s afternoons are 37°C apart. Its July afternoons stay fresher than in 80% of Canadian towns. Frost comes on about 193 days a year, so leave time to clear the car.
1991–2020 normals from ECCC’s Calgary (Airport) location, 11 km south-east.
A year in Sherwood at a glance
Each month’s typical high and low, in °C.
What stands out about Sherwood’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Sherwood 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
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
June brings the most rain and snow; January, the least. On about 72 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
139 cm of snow in a typical 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 Sherwood
85% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.
Think of it as a year’s worth of daily shortfalls below 18°C, added up. In heating terms, homes need more heating than 68% of Canadian towns.
Living with Sherwood’s climate
What the normals mean for a garden, a day outside and the depth of winter.
A normal year gives the garden about 119 frost-free days, roughly 21 May to 18 September.
For long days outdoors, Jul and Aug bring highs of 17–27°C and lows of 8°C or more.
Parks & trails →Expect around 42 days a year when the wind chill sinks below −20.
Summer brings about 9 days when the humidex passes 30.
A typical year is calm by definition; Sherwood’s hazards page covers the exceptions.
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 | 11 km south-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, 78 km |
How Sherwood 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 Sherwood’s own would show the same figures). Distances here run 44–67 km: that is how far the nearest places with figures are from Sherwood.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Sherwood Calgary (Airport) | 23.5°C | −13.5°C | 445 mm |
| Carstairs 44 km · Sundre | 22.8°C 0.7°C cooler | −18.0°C 4.5°C colder | 496 mm |
| Stoney 142, 143, 144 49 km · Banff | 22.5°C 1.0°C cooler | −13.5°C about the same | 454 mm |
| Wheatland County 67 km · Queenstown | 25.0°C 1.5°C warmer | −13.7°C about the same | 412 mm |
Sherwood 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 |
December: −38.2°C at its coldest, 19.5°C at its warmest
Year to year, February varies most (a standard deviation of 4.1°C around −5.9°C) and June least (1.1°C).
Where Sherwood’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 Canadian Climate Normals at Calgary (Airport), the closest ECCC location with twelve months of temperature normals.
- Comparisons: the 2,500-plus towns and neighbourhoods of Canada, each read from its closest normals location; whole cities and reserves aren’t counted.
- 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 Sherwood’s climate
How warm does Sherwood get in summer?
Of all twelve months, July has the warmest afternoons, about 23.5°C.
How cold does Sherwood get in winter?
Winter bottoms out in January, with lows near −13.5°C.
How much rain and snow does Sherwood get?
Measured as water, a year brings 445 mm: 113 mm in June, the wettest month, and 10 mm in January, the driest.
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 Sherwood itself?
They are the normals for Calgary (Airport), measured just outside Sherwood itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Sherwood →
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).