Photo: Brad4826 · CC BY 3.0Precipitation in Grand Bay-Westfield tops that of 92% of Canadian towns: 1,271 mm a year
Nights in January average −13.2°C. Summers stay cool: July afternoons here are cooler than in 90% of Canadian towns. November is the wettest month, August the driest. Homes need heating from October to May, the months averaging under 10°C.
ECCC publishes no normals for Grand Bay-Westfield itself; the figures are those of Saint John, 25 km east.
A year in Grand Bay-Westfield at a glance
Each month’s typical high and low, in °C.
What stands out about Grand Bay-Westfield’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in New Brunswick beside it.
What a year in Grand Bay-Westfield feels like
Each season’s and each month’s usual high and low, 1991–2020.
170 frost days and 80 days above 20°C a year
Frost comes from September to May; in January almost every night freezes. On about 13 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
About 1,271 mm of rain and snow a year
The wettest of 60 towns of 2,500+ in New Brunswick. On about 120 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 215 cm in a normal year
The snow season runs November to April; January brings the most, about 60 cm. 51st snowiest of 60 towns of 2,500+ in New Brunswick.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Grand Bay-Westfield
87% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.
Heating degree days total each day’s gap between its mean temperature and 18°C.
Living with Grand Bay-Westfield’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
The growing season between frosts lasts about 128 days, roughly 21 May to 27 September.
Warm afternoons without cold nights, 17–27°C and 8°C or more, mark Jun, Jul and Aug.
Parks & trails →Wind chill falls below −20 on about 37 days a year: cover skin and dress in layers.
Humid heat, a humidex over 30, comes on about 12 days a year.
Averages smooth over blizzards, ice storms, floods and heat waves; Grand Bay-Westfield’s hazards page covers the risks.
Flood & hazards →ECCC’s normals location: Saint John
Behind the 1991–2020 normals for Saint John are 2 stations, which ECCC combines into one record.
| Distance from the town | 25 km east |
| Station altitude | 109 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −33.2°C |
| Hottest reading, 1991–2020 | 33.7°C |
| Average wind | 15.3 km/h on average, most often from the north |
| Next-nearest location | Point Lepreau, 36 km |
How Grand Bay-Westfield compares
Placed among 2,611 Canadian towns and neighbourhoods of 2,500+, each on its nearest normals location; each dot is another location used in New Brunswick.
Nearby towns’ climate
Nearby places read from a different ECCC location (places on Grand Bay-Westfield’s own would show the same figures). Grand Bay-Westfield has few close neighbours with figures, so the list reaches 26–49 km out.
Grand Bay-Westfield weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −2.5°C | −13.2°C | −7.9°C | 116 mm | 60 cm |
| February | −1.6°C | −12.6°C | −7.1°C | 92 mm | 46 cm |
| March | 2.6°C | −7.7°C | −2.6°C | 107 mm | 37 cm |
| April | 8.8°C | −1.6°C | 3.7°C | 100 mm | 16 cm |
| May | 15.3°C | 3.5°C | 9.4°C | 94 mm | 1 cm |
| June | 20.0°C | 8.1°C | 14.1°C | 87 mm | 0 cm |
| July | 23.0°C | 11.6°C | 17.3°C | 90 mm | 0 cm |
| August | 23.0°C | 11.2°C | 17.1°C | 73 mm | 0 cm |
| September | 18.8°C | 7.4°C | 13.1°C | 109 mm | 0 cm |
| October | 13.0°C | 2.6°C | 7.9°C | 138 mm | 1 cm |
| November | 6.9°C | −2.0°C | 2.4°C | 138 mm | 13 cm |
| December | 1.3°C | −8.3°C | −3.5°C | 128 mm | 42 cm |
| Year | 10.7°C | −0.1°C | 5.3°C | 1,271 mm | 215 cm |
Two years in three, January’s average lands within 2.5°C of normal, against the steadier August
March has the widest record range, −28.4°C in 2014 to 25.4°C in 2012; the tick on each bar is the month’s normal.
Where Grand Bay-Westfield’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the Canadian Climate Normals, 1991–2020, at Saint John (the closest location with all twelve months of temperatures).
- Comparisons: the towns and neighbourhoods of 2,500+ across Canada, each on its nearest normals location, without the city totals or the reserves.
- 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 Grand Bay-Westfield’s climate
How warm does Grand Bay-Westfield get in summer?
At its warmest, in July, the normal high is 23.0°C.
How cold does Grand Bay-Westfield get in winter?
A typical January night falls to −13.2°C, the year’s low point.
How much rain and snow does Grand Bay-Westfield get?
Count on roughly 1,271 mm a year, heaviest in November (138 mm) and lightest in August (73 mm).
Are these figures for Grand Bay-Westfield itself?
Not directly: Grand Bay-Westfield has no ECCC normals of its own, and Saint John stands in for it.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Grand Bay-Westfield →
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).