Photo: Veillg1 · CC0More rain and snow fall on Lac-aux-Sables than on 84% of Canadian towns: 1,138 mm a year
The coldest hours of a January night bottom out at −16.9°C on average. Its January nights bite harder than in 81% of Canadian towns. Some 42°C separates winter nights from summer afternoons. Wet days, with 1 mm of rain or snow or more, come about 141 times a year.
The nearest ECCC normals location is Fortierville, 52 km south-east: at that distance its figures describe the region more than Lac-aux-Sables itself.
A year in Lac-aux-Sables at a glance
Each month’s typical high and low, in °C.
What stands out about Lac-aux-Sables’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Lac-aux-Sables feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
175 frost days and 107 days above 20°C a year
From September to May frost is routine, and in January it comes on almost every night. Deep cold, under −20°C, comes on about 29 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 1,138 mm a year
The most falls in July, the least in February.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
253 cm of snow in a typical year
From October to April snow is likely; December is the peak, at about 59 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Lac-aux-Sables
91% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
A day averaging 10 degrees under 18°C adds 10 to the total; warm days add nothing. In heating terms, homes need more heating than 61% of Canadian towns.
Living with Lac-aux-Sables’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
The outdoor season by the averages is Jun, Jul, Aug and Sep, with highs of 17–27°C and lows of 8°C or more.
Parks & trails →For the weather that does damage, from ice storms to floods, see Lac-aux-Sables’s hazards page.
Flood & hazards →ECCC’s normals location: Fortierville
Every temperature, frost, snow and degree-day figure on this page is the 1991–2020 normal ECCC publishes for Fortierville.
| Distance from the town | 52 km south-east |
| Station altitude | 53 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −41.0°C |
| Hottest reading, 1991–2020 | 35.9°C |
| Next-nearest location | Trois-Rivières, 60 km |
How Lac-aux-Sables 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 Quebec.
Nearby towns’ climate
Places around Lac-aux-Sables whose figures come from another normals location. The nearest places to Lac-aux-Sables with figures are 21–35 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Lac-aux-Sables Fortierville | 25.5°C | −16.9°C | 1,138 mm |
| Saint-Tite 21 km · Trois-Rivières | 25.1°C about the same | −14.1°C 2.8°C milder | 1,101 mm |
| Saint-Léonard-de-Portneuf 35 km · Québec Jean Lesage (Airport) | 25.0°C 0.5°C cooler | −16.7°C about the same | 1,173 mm |
Lac-aux-Sables weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −6.9°C | −16.9°C | −12.0°C | 81 mm | 56 cm |
| February | −4.9°C | −15.9°C | −10.5°C | 69 mm | 55 cm |
| March | 1.2°C | −9.0°C | −4.0°C | 79 mm | 47 cm |
| April | 9.5°C | −1.0°C | 4.4°C | 94 mm | 15 cm |
| May | 18.4°C | 5.8°C | 12.1°C | 92 mm | 1 cm |
| June | 23.3°C | 11.1°C | 17.2°C | 108 mm | 0 cm |
| July | 25.5°C | 14.0°C | 19.6°C | 133 mm | 0 cm |
| August | 24.5°C | 12.9°C | 18.6°C | 103 mm | 0 cm |
| September | 20.0°C | 8.3°C | 14.2°C | 95 mm | 0 cm |
| October | 12.1°C | 2.5°C | 7.4°C | 105 mm | 3 cm |
| November | 4.6°C | −3.2°C | 0.9°C | 82 mm | 19 cm |
| December | −2.9°C | −10.9°C | −6.9°C | 100 mm | 59 cm |
| Year | 10.4°C | −0.2°C | 5.1°C | 1,138 mm | 253 cm |
From −32.0°C to 23.5°C: March’s coldest and warmest days since 1991
The month to count on least is January: one year in three its average strays more than 3.2°C from −12.0°C. June moves least, typically by 1.0°C.
Where Lac-aux-Sables’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 Canadian Climate Normals at Fortierville, the closest ECCC location with twelve months of temperature normals.
- Comparisons: Canada’s towns and neighbourhoods of 2,500+ (no city totals, no reserves), each through its own nearest location.
- 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 Lac-aux-Sables’s climate
How warm does Lac-aux-Sables get in summer?
Afternoons average 25.5°C in July, the warmest time of year.
How cold does Lac-aux-Sables get in winter?
Of all twelve months, January has the coldest nights, about −16.9°C.
How much rain and snow does Lac-aux-Sables get?
Some 1,138 mm falls in a year. Most of it comes in July (133 mm), the least in February (69 mm).
How long does snow stay on the ground?
Count on about 134 days of snow cover a year, 1 cm or deeper.
Are these figures for Lac-aux-Sables itself?
No: they come from Fortierville, the nearest ECCC normals location, and far enough away to describe the wider area more than Lac-aux-Sables.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Lac-aux-Sables →
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).