Photo: P199 · CC BY-SA 4.0Prévost is wetter than 88% of Canadian towns: 1,178 mm of rain and snow a year
Nights in January average −14.7°C. Winter and summer sit 41°C apart. In January, nights here are colder than in 67% of Canadian towns. Ice scrapers and block heaters earn their keep on roughly 159 days a year at 0°C or below.
The nearest ECCC normals location to Prévost is Lachute, 31 km south-west, and every figure on this page is its.
A year in Prévost at a glance
Each month’s typical high and low, in °C.
What stands out about Prévost’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Prévost feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
Frost on 159 days, 20°C on 115
The frost season runs October to May, and January freezes nearly every night. On about 19 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
Rain and melted snow: about 1,178 mm a year
The most falls in October, the least in February. About 143 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 218 cm of snow a year
From October to April snow is likely; January is the peak, at about 56 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Prévost
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 Prévost’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Seedlings can go out once the average last frost, around 12 May, has passed; autumn’s first, near 3 October, ends a season of about 143 days.
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 blizzards, floods and wildfire, turn to Prévost’s hazards page.
Flood & hazards →ECCC’s normals location: Lachute
Every temperature, frost, snow and degree-day figure on this page is the 1991–2020 normal ECCC publishes for Lachute.
| Distance from the town | 31 km south-west |
| Station altitude | 91 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −36.0°C |
| Hottest reading, 1991–2020 | 36.0°C |
| Next-nearest location | St-Jovite, 46 km |
How Prévost 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
Places around Prévost whose figures come from another normals location. The nearest places to Prévost with figures are 13–22 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Prévost Lachute | 26.5°C | −14.7°C | 1,178 mm |
| Sainte-Adèle 13 km · St-Jovite | 25.3°C 1.2°C cooler | −18.3°C 3.6°C colder | 1,178 mm |
| Saint-Calixte 19 km · L'Assomption | 26.6°C about the same | −16.0°C 1.3°C colder | 1,178 mm |
Prévost weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −5.5°C | −14.7°C | −10.2°C | 97 mm | 56 cm |
| February | −3.6°C | −13.6°C | −8.3°C | 72 mm | 47 cm |
| March | 2.4°C | −7.2°C | −2.5°C | 74 mm | 34 cm |
| April | 11.0°C | 0.5°C | 5.9°C | 100 mm | 8 cm |
| May | 19.4°C | 7.4°C | 13.3°C | 89 mm | 0 cm |
| June | 24.1°C | 12.6°C | 18.4°C | 111 mm | 0 cm |
| July | 26.5°C | 15.1°C | 20.5°C | 112 mm | 0 cm |
| August | 25.4°C | 14.3°C | 19.8°C | 104 mm | 0 cm |
| September | 20.8°C | 9.9°C | 15.4°C | 114 mm | 0 cm |
| October | 12.8°C | 3.7°C | 8.4°C | 120 mm | 2 cm |
| November | 5.2°C | −2.3°C | 1.6°C | 93 mm | 17 cm |
| December | −1.9°C | −9.5°C | −6.0°C | 94 mm | 53 cm |
| Year | 11.4°C | 1.4°C | 6.4°C | 1,178 mm | 218 cm |
March has run from −30.5°C to 26.5°C in thirty years
From one year to the next, January’s average typically shifts by 3.2°C around its normal of −10.2°C, the widest of any month, while August’s shifts by 1.0°C.
Where Prévost’s numbers come from
Averages over 30 years, not a forecast.
- Normals: 1991–2020 normals for Lachute from ECCC’s climate data site, the nearest location with every month of temperature.
- Comparisons: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- Not on this page: sunshine (no 1991–2020 normals exist for it) and any altitude adjustment, since there is no elevation for the town itself.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Prévost’s climate
How warm does Prévost get in summer?
Peak warmth comes in July, at about 26.5°C by mid-afternoon.
How cold does Prévost get in winter?
The year’s coldest nights belong to January, at about −14.7°C.
How much rain and snow does Prévost get?
Measured as water, a year brings 1,178 mm: 120 mm in October, the wettest month, and 72 mm in February, the driest.
How long does snow stay on the ground?
Snow cover of 1 cm or more lasts about 128 days in a typical year.
Are these figures for Prévost itself?
No, the station behind them is Lachute, beyond Prévost’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Prévost →
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).