McMasterville is wetter than 82% of Canadian towns: 1,109 mm of rain and snow a year
Midwinter brings lows of about −13.6°C. Seasons differ by 40°C, from the coldest nights to the warmest afternoons. In July, afternoons here are warmer than in 70% of Canadian towns. Plan for rain or snow on about 145 days a year, the days with 1 mm or more.
No ECCC station in McMasterville has 1991–2020 normals; the page reads L'Acadie, 30 km south, instead.
A year in McMasterville at a glance
Each month’s typical high and low, in °C.
What stands out about McMasterville’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in McMasterville feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
Frost on 149 days, 20°C on 124
The frost season runs October to April, and January freezes nearly every night. Some 15 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
About 1,109 mm of rain and snow a year
August brings the most rain and snow; February, the least.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Precipitation and snowfall: Fleury, 33 km away (L'Acadie records no complete year of either).
Snowfall: about 202 cm in a normal year
From October to April snow is likely; December is the peak, at about 49 cm.
Snowfall by month
Centimetres
Heating a home in McMasterville
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Every day colder than 18°C on average adds its gap in degrees to the year’s heating total.
Living with McMasterville’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Highs of 17–27°C with nights of 8°C or more come in Jun, Jul, Aug and Sep.
Parks & trails →On some 36 days a year the wind chill drops past −20; mitts and a scarf earn their place.
About 50 days a year feel above 30 on the humidex.
A normal year has no blizzard, flood or heat wave in it; McMasterville’s hazards page looks at those.
Flood & hazards →ECCC’s normals location: L'Acadie
The page’s figures are ECCC’s 1991–2020 normals for L'Acadie, one of its 450 normals locations.
| Distance from the town | 30 km south |
| Station altitude | 44 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Precipitation from | Fleury, 33 km |
| Coldest reading, 1991–2020 | −32.5°C |
| Hottest reading, 1991–2020 | 36.1°C |
| Average wind | 11.4 km/h on average, most often from the west |
| Next-nearest location | L'Assomption, 33 km |
How McMasterville 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
The nearest places on a normals location of their own: those that share McMasterville’s would only repeat its figures.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| McMasterville L'Acadie | 26.6°C | −13.6°C | 1,109 mm |
| Otterburn Park 2.8 km · L'Acadie | 26.6°C about the same | −13.6°C about the same | 1,109 mm |
| Beloeil 3.2 km · Fleury | 26.0°C 0.6°C cooler | −14.8°C 1.2°C colder | 1,109 mm |
| Saint-Mathieu-de-Beloeil 5.3 km · L'Assomption | 26.6°C about the same | −16.0°C 2.4°C colder | 1,109 mm |
McMasterville 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 | −4.3°C | −13.6°C | −9.0°C | 81 mm | 45 cm |
| February | −2.9°C | −12.7°C | −7.8°C | 61 mm | 43 cm |
| March | 2.6°C | −6.7°C | −2.1°C | 71 mm | 38 cm |
| April | 11.1°C | 0.7°C | 5.9°C | 96 mm | 13 cm |
| May | 19.5°C | 7.8°C | 13.7°C | 98 mm | under 1 cm |
| June | 24.2°C | 13.2°C | 18.7°C | 102 mm | 0 cm |
| July | 26.6°C | 15.5°C | 21.1°C | 106 mm | 0 cm |
| August | 25.3°C | 13.9°C | 19.6°C | 114 mm | 0 cm |
| September | 21.4°C | 9.7°C | 15.6°C | 97 mm | 0 cm |
| October | 13.6°C | 4.1°C | 8.9°C | 108 mm | 2 cm |
| November | 6.1°C | −1.7°C | 2.2°C | 90 mm | 12 cm |
| December | −0.7°C | −8.6°C | −4.7°C | 85 mm | 49 cm |
| Year | 11.9°C | 1.8°C | 6.8°C | 1,109 mm | 202 cm |
March: −28.7°C at its coldest, 25.4°C at its warmest
From one year to the next, January’s average typically shifts by 2.9°C around its normal of −9.0°C, the widest of any month, while August’s shifts by 1.0°C.
Where McMasterville’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 Canadian Climate Normals at L'Acadie, the closest ECCC location with twelve months of temperature normals.
- 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: 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, which none of ECCC’s 450 locations publishes for 1991–2020, and the town’s own height above sea level, so no figure is adjusted for altitude.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about McMasterville’s climate
How warm does McMasterville get in summer?
In July, the warmest month, the typical high is 26.6°C.
How cold does McMasterville get in winter?
On a normal January night the air drops to −13.6°C, the coldest of the year.
How much rain and snow does McMasterville get?
Around 1,109 mm a year in all, from 114 mm in August down to 61 mm in February.
Are these figures for McMasterville itself?
No. ECCC measures normals at L'Acadie, not in McMasterville; the page uses the nearest it has.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for McMasterville →
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).