Precipitation in Saint-Alexis tops that of 82% of Canadian towns: 1,109 mm a year
Midsummer highs settle at about 26.6°C. By January nights alone, it runs colder than 75% of Canadian towns. August is the wettest month, February the driest. From June to September, highs of 21–27°C make it easy to spend the day outdoors.
No ECCC station in Saint-Alexis has 1991–2020 normals; the page reads L'Assomption, 23 km south-east, instead.
A year in Saint-Alexis at a glance
Each month’s typical high and low, in °C.
What stands out about Saint-Alexis’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Saint-Alexis feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
About 161 frosts and 119 warm days a year
The frost season runs October 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
1,109 mm of precipitation in a typical year
Some 145 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
L'Assomption publishes no full year of precipitation or snowfall, so these figures, and the snow below, come from Fleury, 53 km away.
202 cm of snow in a typical year
Snow falls from October to April, most of all in December (about 49 cm).
Snowfall by month
Centimetres
Heating a home in Saint-Alexis
93% 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.
Living with Saint-Alexis’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 →A wind chill below −20 is part of about 44 days a year here.
Count on some 49 humid days a year with the humidex past 30.
Extremes don’t show in averages: floods, wildfire smoke and ice storms are on Saint-Alexis’s hazards page.
Flood & hazards →ECCC’s normals location: L'Assomption
L'Assomption is one of the 450 places where ECCC publishes 1991–2020 normals.
| Distance from the town | 23 km south-east |
| Station altitude | 21 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Precipitation from | Fleury, 53 km |
| Coldest reading, 1991–2020 | −40.0°C |
| Hottest reading, 1991–2020 | 36.2°C |
| Average wind | 10.0 km/h on average, most often from the south-west |
| Next-nearest location | Fleury, 53 km |
How Saint-Alexis compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Quebec.
Nearby towns’ climate
Nearby places read from a different ECCC location (places on Saint-Alexis’s own would show the same figures). Saint-Alexis has few close neighbours with figures, so the list reaches 27–33 km out.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Saint-Alexis L'Assomption | 26.6°C | −16.0°C | 1,109 mm |
| Sainte-Sophie 27 km · Lachute | 26.5°C about the same | −14.7°C 1.3°C milder | 1,178 mm |
| Entrelacs 32 km · St-Jovite | 25.3°C 1.3°C cooler | −18.3°C 2.3°C colder | 1,178 mm |
| Bois-des-Filion 32 km · Montréal Trudeau (Airport) | 26.7°C about the same | −13.5°C 2.5°C milder | 1,041 mm |
Saint-Alexis weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −5.9°C | −16.0°C | −10.9°C | 81 mm | 45 cm |
| February | −4.0°C | −14.8°C | −9.4°C | 61 mm | 43 cm |
| March | 1.8°C | −8.3°C | −3.2°C | 71 mm | 38 cm |
| April | 10.8°C | 0.1°C | 5.5°C | 96 mm | 13 cm |
| May | 19.2°C | 7.2°C | 13.2°C | 98 mm | under 1 cm |
| June | 24.3°C | 12.4°C | 18.4°C | 102 mm | 0 cm |
| July | 26.6°C | 14.8°C | 20.7°C | 106 mm | 0 cm |
| August | 25.5°C | 13.7°C | 19.6°C | 114 mm | 0 cm |
| September | 21.1°C | 9.2°C | 15.2°C | 97 mm | 0 cm |
| October | 13.0°C | 3.2°C | 8.1°C | 108 mm | 2 cm |
| November | 5.4°C | −2.7°C | 1.3°C | 90 mm | 12 cm |
| December | −1.9°C | −10.2°C | −6.1°C | 85 mm | 49 cm |
| Year | 11.3°C | 0.7°C | 6.0°C | 1,109 mm | 202 cm |
A January here can run warm or cold, its average moving by about 3.1°C; the steadiest month is June
Each bar spans a month’s coldest and warmest readings over thirty years; March’s run from −29.5°C in 1992 to 26.0°C in 2012.
Where Saint-Alexis’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the Canadian Climate Normals, 1991–2020, at L'Assomption (the closest location with all twelve months of temperatures).
- Other locations: where a location publishes no full year of precipitation or snowfall, the nearest one that does supplies it, named beside those figures.
- Comparisons: the 2,500-plus towns and neighbourhoods of Canada, each read from its closest normals location; whole cities and reserves aren’t counted.
- Not on this page: hours of sunshine, missing from the 1991–2020 normals, and a height correction: the town has no elevation on file.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Saint-Alexis’s climate
How warm does Saint-Alexis get in summer?
Expect highs near 26.6°C in July, the hottest month on average.
How cold does Saint-Alexis get in winter?
On a normal January night the air drops to −16.0°C, the coldest of the year.
How much rain and snow does Saint-Alexis get?
Around 1,109 mm a year in all, from 114 mm in August down to 61 mm in February.
Are these figures for Saint-Alexis itself?
They describe L'Assomption, the nearest normals location, rather than Saint-Alexis itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Saint-Alexis →
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).