Calder is drier than 90% of Canadian towns: 423 mm of rain and snow a year
The warmest part of a July day comes in at 23.5°C on average. A year here swings 38°C from midwinter lows to midsummer highs. Its July afternoons stay fresher than in 80% of Canadian towns. Plan for rain or snow on about 72 days a year, the days with 1 mm or more.
Read at Edmonton (City), 2.0 km south: ECCC’s normals for 1991–2020.
A year in Calder at a glance
Each month’s typical high and low, in °C.
What stands out about Calder’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Calder feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
About 179 frosts and 90 warm days a year
The frost season runs September to May, and January freezes nearly every night. Deep cold, under −20°C, comes on about 24 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 423 mm a year
July brings the most rain and snow; February, the least.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 124 cm of snow a year
Expect snow from October to May, with about 26 cm in January, the snowiest month.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Calder
89% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Heating degree days total each day’s gap between its mean temperature and 18°C. That means homes here need more heating than 76% of Canadian towns.
Living with Calder’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
The growing season between frosts lasts about 141 days, roughly 7 May to 25 September.
The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: Jun, Jul and Aug.
Parks & trails →Frostbite weather, a wind chill under −20, turns up on about 50 days a year.
Humid summer days, the humidex above 30, number about 11 a year.
A normal year has no blizzard, flood or heat wave in it; Calder’s hazards page looks at those.
Flood & hazards →ECCC’s normals location: Edmonton (City)
Behind the 1991–2020 normals for Edmonton (City) are 3 stations, which ECCC combines into one record.
| Distance from the town | 2.0 km south |
| Station altitude | 671 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −37.8°C |
| Hottest reading, 1991–2020 | 34.9°C |
| Average wind | 12.2 km/h on average, most often from the west |
| Next-nearest location | Fort Saskatchewan, 27 km |
How Calder compares
Against the 2,611 Canadian towns and neighbourhoods of 2,500 or more, each read from its own normals location; the dots are the other locations those towns use in Alberta.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Calder’s would only repeat its figures. No closer places have figures: these lie 22–29 km from Calder.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Calder Edmonton (City) | 23.5°C | −14.7°C | 423 mm |
| Fort Saskatchewan 22 km · Fort Saskatchewan | 23.6°C about the same | −17.8°C 3.1°C colder | 473 mm |
| Beaumont 27 km · Edmonton (Airport) | 23.0°C 0.5°C cooler | −18.1°C 3.4°C colder | 434 mm |
Calder weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −5.8°C | −14.7°C | −10.3°C | 20 mm | 26 cm |
| February | −3.0°C | −12.7°C | −7.9°C | 12 mm | 13 cm |
| March | 1.7°C | −7.8°C | −3.1°C | 17 mm | 19 cm |
| April | 10.4°C | −0.7°C | 4.9°C | 29 mm | 15 cm |
| May | 17.5°C | 5.6°C | 11.6°C | 44 mm | 5 cm |
| June | 21.0°C | 10.2°C | 15.6°C | 70 mm | 0 cm |
| July | 23.5°C | 12.6°C | 18.1°C | 83 mm | 0 cm |
| August | 22.6°C | 11.3°C | 17.0°C | 61 mm | under 1 cm |
| September | 17.6°C | 6.2°C | 11.9°C | 39 mm | 1 cm |
| October | 10.0°C | −0.1°C | 5.0°C | 21 mm | 11 cm |
| November | 0.6°C | −7.5°C | −3.5°C | 18 mm | 20 cm |
| December | −4.7°C | −13.2°C | −9.0°C | 12 mm | 15 cm |
| Year | 9.3°C | −0.9°C | 4.2°C | 423 mm | 124 cm |
The month with the widest range: March, −34.0°C to 23.9°C
Bars run from each month’s record low to its record high over 1991–2020; February is the month whose average wanders most from year to year (±4.2°C around −7.9°C), June the one that wanders least (±1.0°C).
Where Calder’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the Canadian Climate Normals, 1991–2020, at Edmonton (City) (the closest location with all twelve months of temperatures).
- Comparisons: Canadian towns and neighbourhoods of at least 2,500, each placed by its nearest location (city totals and reserves excluded).
- Not on this page: sunshine, absent from every 1991–2020 location, and an altitude correction, for want of the town’s own elevation.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Calder’s climate
How warm does Calder get in summer?
Midsummer means July, with afternoons near 23.5°C on a typical day.
How cold does Calder get in winter?
The coldest nights come in January, averaging −14.7°C.
How much rain and snow does Calder get?
Over twelve months, rain and melted snow come to 423 mm; the range runs from 12 mm in February to 83 mm in July.
Are these figures for Calder itself?
They are the normals for Edmonton (City), measured just outside Calder itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Calder →
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).