Wet weather: 1,414 mm of rain and snow a year falls on Westmount, more than on 95% of Canadian towns
On a normal July day the thermometer tops out near 22.7°C. None of its 4 nearest neighbours has cooler July afternoons. Expect the most rain and snow in December and the least in August. Frost comes on about 133 days a year, so leave time to clear the car.
Westmount has no ECCC normals station of its own: every figure here comes from Shearwater, 9.4 km east.
A year in Westmount at a glance
Each month’s typical high and low, in °C.
What stands out about Westmount’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Nova Scotia beside it.
What a year in Westmount feels like
Each season’s and each month’s usual high and low, 1991–2020.
Frost on 133 days, 20°C on 82
Frost comes from October to April; in January almost every night freezes.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
1,414 mm of precipitation in a typical year
On about 124 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
215 cm of snow in a typical year
The snow season runs November to May; January brings the most, about 54 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Shearwater publishes no full year of snowfall, so these figures come from Halifax Stanfield (Airport), 29 km away.
Heating a home in Westmount
88% of a year’s heating need falls between October and April. Months averaging under 10°C: November to May.
The total grows by a degree for every degree a day’s mean sits under 18°C. Homes here need less heating than 71% of Canadian towns.
Living with Westmount’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
About 181 days a year pass without frost, from an average last frost of 30 April to a first of 29 October.
For long days outdoors, Jun, Jul, Aug and Sep bring highs of 17–27°C and lows of 8°C or more.
Parks & trails →Winter brings about 15 days with a wind chill below −20.
Humid heat, a humidex over 30, comes on about 19 days a year.
Averages smooth over blizzards, ice storms, floods and heat waves; Westmount’s hazards page covers the risks.
Flood & hazards →ECCC’s normals location: Shearwater
ECCC builds the Shearwater normals from 3 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 9.4 km east |
| Station altitude | 44 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | Halifax Stanfield (Airport), 29 km |
| Coldest reading, 1991–2020 | −26.5°C |
| Hottest reading, 1991–2020 | 34.3°C |
| Average wind | 14.3 km/h on average, most often from the north-west |
| Next-nearest location | Halifax Stanfield (Airport), 29 km |
How Westmount compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Nova Scotia.
Nearby towns’ climate
Nearby places read from a different ECCC location (places on Westmount’s own would show the same figures). Westmount has few close neighbours with figures, so the list reaches 43–59 km out.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Westmount Shearwater | 22.7°C | −8.3°C | 1,414 mm |
| Enfield 43 km · Halifax Stanfield (Airport) | 24.2°C 1.5°C warmer | −10.1°C 1.8°C colder | 1,393 mm |
| Chester 52 km · Bridgewater | 25.5°C 2.8°C warmer | −10.2°C 1.9°C colder | 1,561 mm |
| Windsor 56 km · Waterville Cambridge | 25.9°C 3.2°C warmer | −9.1°C 0.8°C colder | 1,216 mm |
| Stewiacke 59 km · Upper Stewiacke | 25.1°C 2.4°C warmer | −11.6°C 3.3°C colder | 1,277 mm |
Westmount weather by month
Average daily high and low, mean temperature, rain and snow (as water) and snowfall by month, 1991–2020.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | 0.2°C | −8.3°C | −4.1°C | 124 mm | 54 cm |
| February | 0.6°C | −7.9°C | −3.7°C | 114 mm | 44 cm |
| March | 3.7°C | −4.3°C | −0.3°C | 120 mm | 34 cm |
| April | 8.6°C | 0.4°C | 4.5°C | 108 mm | 17 cm |
| May | 14.0°C | 5.0°C | 9.5°C | 115 mm | 2 cm |
| June | 18.9°C | 9.9°C | 14.4°C | 107 mm | 0 cm |
| July | 22.7°C | 14.3°C | 18.5°C | 95 mm | 0 cm |
| August | 23.3°C | 14.7°C | 19.1°C | 94 mm | 0 cm |
| September | 20.1°C | 11.3°C | 15.8°C | 107 mm | 0 cm |
| October | 14.2°C | 6.2°C | 10.2°C | 141 mm | 1 cm |
| November | 8.6°C | 1.3°C | 5.0°C | 135 mm | 19 cm |
| December | 3.6°C | −3.9°C | −0.2°C | 156 mm | 44 cm |
| Year | 11.6°C | 3.2°C | 7.4°C | 1,414 mm | 215 cm |
The most changeable month: January, give or take 2.0°C; the steadiest, August
Bars run from each month’s record low to its record high since 1991. March spans the most, from −19.1°C (1992) to 28.3°C (2012).
Where Westmount’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the closest ECCC location with twelve months of temperature normals, Shearwater, 1991–2020.
- Other locations: a location missing months of precipitation or snow is filled from the nearest that has them all, never mixed month by month.
- Comparisons: every place of 2,500+ in Canada but the city hubs and the reserves, each on its nearest ECCC location.
- 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 Westmount’s climate
How warm does Westmount get in summer?
In August, the warmest month, the typical high is 23.3°C.
How cold does Westmount get in winter?
Overnight lows average −8.3°C in January, the coldest month.
How much rain and snow does Westmount get?
Rain and snow, with snow counted as water, total 1,414 mm a year; December leads with 156 mm and August trails with 94 mm.
Are these figures for Westmount itself?
Not directly: Westmount has no ECCC normals of its own, and Shearwater stands in for it.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Westmount →
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).