Photo: Qyd · CC BY 2.5Summers in Grande Cache are cooler than in 94% of Canadian towns
Midwinter brings lows of about −19.4°C. Frosty nights outnumber those of 91% of Canadian towns. The year is lopsided: July gets about 4.7 times what February does. Warm coats and heating bills mark the months from October to April, when means dip under 10°C.
Grande Cache has no ECCC normals station of its own: every figure here comes from Grande Prairie, 44 km north.
A year in Grande Cache at a glance
Each month’s typical high and low, in °C.
What stands out about Grande Cache’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Grande Cache feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
Frost on 202 days, 20°C on 80
The frost season runs September to May, and January freezes nearly every night. Some 43 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 435 mm a year
On about 87 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
162 cm of snow in a typical year
Snow falls from September to May, most of all in January (about 34 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Grande Cache
87% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Think of it as a year’s worth of daily shortfalls below 18°C, added up. A house here needs more heating than 96% of Canadian towns.
Living with Grande Cache’s climate
What the normals mean for a garden, a day outside and the depth of winter.
About 111 days a year pass without frost, from an average last frost of 21 May to a first of 10 September.
Plan time outside for Jun, Jul and Aug: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →Winter brings about 67 days with a wind chill below −20.
The air feels heavier than 30 on the humidex for about 5 days a year.
For blizzards, floods and wildfire, turn to Grande Cache’s hazards page.
Flood & hazards →ECCC’s normals location: Grande Prairie
ECCC builds the Grande Prairie normals from 2 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 44 km north |
| Station altitude | 669 m |
| Completeness | at least 25 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −47.1°C |
| Hottest reading, 1991–2020 | 35.6°C |
| Average wind | 11.9 km/h on average, most often from the west |
| Next-nearest location | Dawson Creek, 128 km |
How Grande Cache compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Alberta.
Nearby towns’ climate
Nearby places read from a different ECCC location (places on Grande Cache’s own would show the same figures). Grande Cache has few close neighbours with figures, so the list reaches 130–137 km out.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Grande Cache Grande Prairie | 22.7°C | −19.4°C | 435 mm |
| Birch Hills County 130 km · Peace River | 22.7°C about the same | −20.1°C 0.7°C colder | 384 mm |
| Tumbler Ridge 131 km · Dawson Creek | 22.5°C about the same | −19.4°C about the same | 421 mm |
Grande Cache 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 | −8.3°C | −19.4°C | −13.9°C | 28 mm | 34 cm |
| February | −4.6°C | −16.3°C | −10.5°C | 16 mm | 20 cm |
| March | −0.1°C | −11.5°C | −5.8°C | 18 mm | 22 cm |
| April | 9.9°C | −2.3°C | 3.8°C | 22 mm | 11 cm |
| May | 17.0°C | 3.4°C | 10.3°C | 42 mm | 5 cm |
| June | 20.6°C | 8.0°C | 14.3°C | 72 mm | under 1 cm |
| July | 22.7°C | 9.9°C | 16.3°C | 73 mm | 0 cm |
| August | 22.0°C | 8.4°C | 15.2°C | 50 mm | 0 cm |
| September | 17.3°C | 3.8°C | 10.5°C | 37 mm | 2 cm |
| October | 9.1°C | −2.4°C | 3.3°C | 30 mm | 15 cm |
| November | −0.9°C | −10.7°C | −5.9°C | 29 mm | 28 cm |
| December | −6.4°C | −17.0°C | −11.7°C | 19 mm | 25 cm |
| Year | 8.2°C | −3.9°C | 2.2°C | 435 mm | 162 cm |
A January here can run from −47.1°C to 15.2°C
Bars run from each month’s record low to its record high over 1991–2020; December is the month whose average wanders most from year to year (±5.0°C around −11.7°C), June the one that wanders least (±0.9°C).
Where Grande Cache’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 Canadian Climate Normals at Grande Prairie, the closest ECCC location with twelve months of temperature normals.
- Comparisons: a pool of Canadian towns and neighbourhoods of 2,500 or more, read alike; whole cities and reserves stay out of it.
- Not on this page: sunshine, not in ECCC’s 1991–2020 normals, and the effect of the town’s height, for which there is no figure.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Grande Cache’s climate
How warm does Grande Cache get in summer?
In July, the warmest month, the typical high is 22.7°C.
How cold does Grande Cache get in winter?
The coldest nights come in January, averaging −19.4°C.
How much rain and snow does Grande Cache get?
Count on roughly 435 mm a year, heaviest in July (73 mm) and lightest in February (16 mm).
Are these figures for Grande Cache itself?
They are the closest available: the normals for Grande Prairie, since Grande Cache has none.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Grande Cache →
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).