Photo: Chicoutimi · CC BY 3.0Summer afternoons in Hampstead are warmer than in 78% of Canadian towns
In January the night’s low is typically −13.5°C. Precipitation is plentiful here, more than falls on 74% of Canadian towns. Temperatures cover 40°C across the year, low to high. Expect about 146 frosty starts a year, days when the air falls to freezing.
These are not Hampstead’s own readings: ECCC keeps no normals there, so the page uses Montréal Trudeau (Airport), 8.4 km west.
A year in Hampstead at a glance
Each month’s typical high and low, in °C.
What stands out about Hampstead’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Hampstead feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
About 146 frosts and 121 warm days a year
From October to April frost is routine, and in January it comes on almost every night. On about 12 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
1,041 mm of precipitation in a typical year
The most falls in October, the least in February. On about 122 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
217 cm of snow in a typical year
Snow falls from October to April, most of all in January (about 52 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Hampstead
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Think of it as a year’s worth of daily shortfalls below 18°C, added up. Homes here need less heating than 62% of Canadian towns.
Living with Hampstead’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Wait until about 29 April to plant out; frost tends to come back around 14 October, about 167 days later.
Afternoons of 17–27°C and nights of at least 8°C arrive in May, Jun, Jul, Aug and Sep.
Parks & trails →Roughly 40 days a year feel colder than −20 in the wind.
About 50 days a year turn sultry, with the humidex past 30.
Storms, floods and heat waves sit outside these normals; Hampstead’s hazards page covers them.
Flood & hazards →ECCC’s normals location: Montréal Trudeau (Airport)
Behind the 1991–2020 normals for Montréal Trudeau (Airport) are 3 stations, which ECCC combines into one record.
| Distance from the town | 8.4 km west |
| Station altitude | 36 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −31.8°C |
| Hottest reading, 1991–2020 | 36.6°C |
| Average wind | 15.4 km/h on average, most often from the west |
| Next-nearest location | L'Acadie, 31 km |
How Hampstead 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 Hampstead whose figures come from another normals location. The nearest places to Hampstead with figures are 14–20 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Hampstead Montréal Trudeau (Airport) | 26.7°C | −13.5°C | 1,041 mm |
| Brossard 14 km · L'Acadie | 26.6°C about the same | −13.6°C about the same | 1,041 mm |
| Montréal-Est 20 km · L'Assomption | 26.6°C about the same | −16.0°C 2.5°C colder | 1,041 mm |
Hampstead weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −5.0°C | −13.5°C | −9.2°C | 86 mm | 52 cm |
| February | −3.4°C | −12.4°C | −8.0°C | 66 mm | 47 cm |
| March | 2.4°C | −6.5°C | −2.0°C | 77 mm | 37 cm |
| April | 11.3°C | 1.1°C | 6.2°C | 90 mm | 15 cm |
| May | 19.4°C | 8.3°C | 13.9°C | 86 mm | 0 cm |
| June | 24.2°C | 13.8°C | 19.0°C | 84 mm | 0 cm |
| July | 26.7°C | 16.7°C | 21.7°C | 91 mm | 0 cm |
| August | 25.7°C | 15.6°C | 20.6°C | 94 mm | 0 cm |
| September | 21.1°C | 10.9°C | 16.0°C | 89 mm | 0 cm |
| October | 13.2°C | 4.5°C | 8.9°C | 103 mm | 1 cm |
| November | 6.1°C | −1.7°C | 2.3°C | 84 mm | 16 cm |
| December | −1.2°C | −8.7°C | −5.0°C | 92 mm | 48 cm |
| Year | 11.7°C | 2.3°C | 7.0°C | 1,041 mm | 217 cm |
The most changeable month: January, give or take 3.0°C; the steadiest, June
Records from 1991 to 2020: no month spans more than March, between −26.9°C (1992) and 25.8°C (2012).
Where Hampstead’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Montréal Trudeau (Airport), 1991–2020, chosen as the nearest location with a full temperature record.
- 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 Hampstead’s climate
How warm does Hampstead get in summer?
A normal July afternoon tops out at about 26.7°C, the year’s high point.
How cold does Hampstead get in winter?
Deep winter means January, when nights average −13.5°C.
How much rain and snow does Hampstead get?
Rain and snow add up to about 1,041 mm of water a year; October brings the most (103 mm), February the least (66 mm).
How long does snow stay on the ground?
Count on about 101 days of snow cover a year, 1 cm or deeper.
Are these figures for Hampstead itself?
They come from Montréal Trudeau (Airport), which ECCC uses as the nearest normals location for Hampstead.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Hampstead →
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).