Photo: Gabriel Picard · CC BY-SA 4.0Precipitation in Fossambault-sur-le-Lac tops that of 87% of Canadian towns: 1,173 mm a year
Nights in January average −16.7°C. Winter nights are cold: in January they are colder than in 80% of Canadian towns. Temperatures cover 42°C across the year, low to high. The outdoor season runs from June to September, with highs of 19–25°C.
No ECCC station in Fossambault-sur-le-Lac has 1991–2020 normals; the page reads Québec Jean Lesage (Airport), 20 km south-east, instead.
A year in Fossambault-sur-le-Lac at a glance
Each month’s typical high and low, in °C.
What stands out about Fossambault-sur-le-Lac’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Fossambault-sur-le-Lac feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
About 170 frosts and 100 warm days a year
From October to May frost is routine, and in January it comes on almost every night. Some 27 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 1,173 mm a year
The most falls in July, the least in February. On about 135 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Snowfall: about 299 cm in a normal year
The snow season runs October to April; December brings the most, about 77 cm.
Snowfall by month
Centimetres
ECCC’s Québec Jean Lesage (Airport) normals leave snowfall out; the figures here come from Lauzon, 40 km away.
Heating a home in Fossambault-sur-le-Lac
91% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Warm days count for nothing; each colder day adds how far its mean sits below 18°C. That means homes here need more heating than 64% of Canadian towns.
Living with Fossambault-sur-le-Lac’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Gardens get from about 10 May to 5 October without frost, around 148 days in all.
The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: Jun, Jul, Aug and Sep.
Parks & trails →Frostbite weather, a wind chill under −20, turns up on about 56 days a year.
Expect around 34 sticky days a year with the humidex above 30.
The normals describe a typical year, not its worst days; the hazards page covers Fossambault-sur-le-Lac’s.
Flood & hazards →ECCC’s normals location: Québec Jean Lesage (Airport)
Behind the 1991–2020 normals for Québec Jean Lesage (Airport) are 2 stations, which ECCC combines into one record.
| Distance from the town | 20 km south-east |
| Station altitude | 74 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | Lauzon, 40 km |
| Coldest reading, 1991–2020 | −36.7°C |
| Hottest reading, 1991–2020 | 34.2°C |
| Average wind | 13.2 km/h on average, most often from the west |
| Next-nearest location | Ste-Foy (U. Laval), 25 km |
How Fossambault-sur-le-Lac 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 Quebec.
Nearby towns’ climate
Places around Fossambault-sur-le-Lac whose figures come from another normals location. No closer places have figures: these lie 25–28 km from Fossambault-sur-le-Lac.
Fossambault-sur-le-Lac 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 | −7.1°C | −16.7°C | −11.9°C | 87 mm | 62 cm |
| February | −5.0°C | −15.7°C | −10.4°C | 66 mm | 71 cm |
| March | 0.4°C | −9.3°C | −4.5°C | 78 mm | 51 cm |
| April | 8.3°C | −1.2°C | 3.5°C | 94 mm | 12 cm |
| May | 17.5°C | 5.6°C | 11.6°C | 92 mm | 0 cm |
| June | 22.5°C | 10.8°C | 16.7°C | 115 mm | 0 cm |
| July | 25.0°C | 13.9°C | 19.5°C | 119 mm | 0 cm |
| August | 24.0°C | 12.8°C | 18.4°C | 109 mm | 0 cm |
| September | 19.1°C | 8.3°C | 13.7°C | 111 mm | 0 cm |
| October | 11.3°C | 2.4°C | 6.8°C | 116 mm | 2 cm |
| November | 3.6°C | −3.8°C | −0.1°C | 91 mm | 24 cm |
| December | −3.3°C | −11.4°C | −7.3°C | 96 mm | 77 cm |
| Year | 9.7°C | −0.4°C | 4.7°C | 1,173 mm | 299 cm |
January varies most from one year to the next (2.9°C), August least
January has the widest record range, −36.7°C in 2015 to 17.7°C in 1996; the tick on each bar is the month’s normal.
Where Fossambault-sur-le-Lac’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the Canadian Climate Normals, 1991–2020, at Québec Jean Lesage (Airport) (the closest location with all twelve months of temperatures).
- Other locations: a location missing months of precipitation or snow is filled from the nearest that has them all, never mixed month by month.
- Comparisons: every Canadian town and neighbourhood of 2,500 or more, each read from its own nearest location; city totals and reserves are left out.
- 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 Fossambault-sur-le-Lac’s climate
How warm does Fossambault-sur-le-Lac get in summer?
Peak warmth comes in July, at about 25.0°C by mid-afternoon.
How cold does Fossambault-sur-le-Lac get in winter?
The year’s coldest nights belong to January, at about −16.7°C.
How much rain and snow does Fossambault-sur-le-Lac get?
Rain and snow add up to about 1,173 mm of water a year; July brings the most (119 mm), February the least (66 mm).
Are these figures for Fossambault-sur-le-Lac itself?
The figures are ECCC’s for Québec Jean Lesage (Airport); Fossambault-sur-le-Lac has no normals station.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Fossambault-sur-le-Lac →
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).