Photo: Unknown author Unknown author · Public domainIce on the ground: Bonnyville sees more frosts than 90% of Canadian towns
July afternoons average 23.6°C. Rain or snow is most frequent in June and least in February. Precipitation is light here, less than falls on 85% of Canadian towns. The outdoor season runs from June to August, with highs of 21–24°C.
Bonnyville has no ECCC normals station of its own: every figure here comes from Cold Lake, 34 km north-east.
A year in Bonnyville at a glance
Each month’s typical high and low, in °C.
What stands out about Bonnyville’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Bonnyville feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
Frost on 198 days, 20°C on 89
From September to May frost is routine, and in December it comes on almost every night. On about 43 nights a year the air falls below −20°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 437 mm of rain and snow a year
Some 76 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
127 cm of snow in a typical year
The snow season runs October to May; January brings the most, about 23 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Bonnyville
89% 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. Over a year, a home here needs more heating than 94% of Canadian towns.
Living with Bonnyville’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
The frost-free stretch runs from about 19 May to about 16 September, some 119 days in a normal year.
Warm afternoons without cold nights, 17–27°C and 8°C or more, mark Jun, Jul and Aug.
Parks & trails →Plan for about 70 days a year with a wind chill below −20.
Roughly 11 days a year feel hotter than 30 once humidity is counted.
Ice storms, floods and heat waves are risks, not averages: they are on Bonnyville’s hazards page.
Flood & hazards →ECCC’s normals location: Cold Lake
The page’s figures are ECCC’s 1991–2020 normals for Cold Lake, one of its 450 normals locations.
| Distance from the town | 34 km north-east |
| Station altitude | 541 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | Yes |
| Coldest reading, 1991–2020 | −44.4°C |
| Hottest reading, 1991–2020 | 36.3°C |
| Average wind | 11.1 km/h on average, most often from the west |
| Next-nearest location | Lac la Biche, 101 km |
How Bonnyville 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
Places around Bonnyville whose figures come from another normals location. The nearest places to Bonnyville with figures are 48–73 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Bonnyville Cold Lake | 23.6°C | −19.6°C | 437 mm |
| St. Paul 48 km · Vegreville | 23.5°C about the same | −19.0°C 0.6°C milder | 388 mm |
| White Fish Lake 128 72 km · Lac la Biche | 23.1°C 0.5°C cooler | −19.1°C 0.5°C milder | 388 mm |
Bonnyville weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −9.9°C | −19.6°C | −14.8°C | 17 mm | 23 cm |
| February | −6.3°C | −17.3°C | −11.8°C | 13 mm | 17 cm |
| March | 0.5°C | −10.7°C | −5.1°C | 18 mm | 18 cm |
| April | 9.4°C | −2.2°C | 3.6°C | 34 mm | 14 cm |
| May | 17.1°C | 4.1°C | 10.6°C | 40 mm | 2 cm |
| June | 21.0°C | 9.2°C | 15.1°C | 86 mm | under 1 cm |
| July | 23.6°C | 11.8°C | 17.7°C | 79 mm | 0 cm |
| August | 22.5°C | 10.3°C | 16.4°C | 52 mm | under 1 cm |
| September | 16.9°C | 4.9°C | 10.9°C | 39 mm | under 1 cm |
| October | 8.4°C | −1.3°C | 3.6°C | 24 mm | 8 cm |
| November | −1.9°C | −9.8°C | −5.9°C | 19 mm | 23 cm |
| December | −8.7°C | −17.4°C | −13.1°C | 16 mm | 22 cm |
| Year | 7.7°C | −3.2°C | 2.3°C | 437 mm | 127 cm |
December strays furthest from its normal year to year, by 4.3°C; June the least
The thirty-year records stretch furthest in March: a low of −39.6°C in 2009 and a high of 17.9°C in 1992.
Where Bonnyville’s numbers come from
Averages over 30 years, not a forecast.
- Normals: Environment and Climate Change Canada’s 1991–2020 normals, Cold Lake: the nearest of its locations with every month’s temperatures.
- Comparisons: Canada’s towns and neighbourhoods of 2,500+ (no city totals, no reserves), each through its own nearest location.
- 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 Bonnyville’s climate
How warm does Bonnyville get in summer?
Afternoons average 23.6°C in July, the warmest time of year.
How cold does Bonnyville get in winter?
Of all twelve months, January has the coldest nights, about −19.6°C.
How much rain and snow does Bonnyville get?
437 mm a year counting snow as water. The wettest month is June (86 mm); the driest, February (13 mm).
How long does snow stay on the ground?
There is 1 cm of snow or more on the ground on roughly 142 days a year.
Are these figures for Bonnyville itself?
No, they come from Cold Lake; ECCC keeps no 1991–2020 normals in Bonnyville itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Bonnyville →
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).