Summer arrives in force in Westminster-Branson, hotter than in 91% of Canadian towns
In January the night’s low is typically −10.1°C. Expect the most rain and snow in June and the least in February. Frosty nights are scarcer than in 70% of Canadian towns. Homes need heating from October to April, the months averaging under 10°C.
Environment and Climate Change Canada’s 1991–2020 normals at its Toronto Buttonville (Airport) station, 11 km north-east.
A year in Westminster-Branson at a glance
Each month’s typical high and low, in °C.
What stands out about Westminster-Branson’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Westminster-Branson feels like
Each season’s and each month’s usual high and low, 1991–2020.
Frost on 145 days, 20°C on 126
From October to May frost is routine, and in January it comes on almost every night. Some 6 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
Rain and melted snow: about 862 mm a year
About 113 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 146 cm in a normal year
Snow falls from November to April, most of all in January (about 40 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Westminster-Branson
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Measured against 18°C: each day’s shortfall in mean temperature, added over twelve months. By this count, homes here need less heating than 74% of Canadian towns.
Living with Westminster-Branson’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Seedlings can go out once the average last frost, around 3 May, has passed; autumn’s first, near 13 October, ends a season of about 161 days.
Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to Jun, Aug and Sep.
Parks & trails →Winter brings about 22 days with a wind chill below −20.
The humidex tops 30 on about 55 days a year: muggy days to plan around.
For blizzards, floods and wildfire, turn to Westminster-Branson’s hazards page.
Flood & hazards →ECCC’s normals location: Toronto Buttonville (Airport)
Toronto Buttonville (Airport) is a composite: ECCC joins 3 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 11 km north-east |
| Station altitude | 198 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −35.2°C |
| Hottest reading, 1991–2020 | 37.8°C |
| Average wind | 12.2 km/h on average, most often from the north |
| Next-nearest location | Toronto (City), 13 km |
How Westminster-Branson compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Ontario.
Nearby towns’ climate
Places around Westminster-Branson whose figures come from another normals location. No closer places have figures: these lie 9–29 km from Westminster-Branson.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Westminster-Branson Toronto Buttonville (Airport) | 27.3°C | −10.1°C | 862 mm |
| Toronto 8.8 km · Toronto (City) | 27.0°C about the same | −6.7°C 3.4°C milder | 823 mm |
| Brampton 26 km · Toronto Pearson (Airport) | 27.4°C about the same | −8.9°C 1.2°C milder | 807 mm |
| Pickering 28 km · Oshawa | 25.7°C 1.6°C cooler | −8.9°C 1.2°C milder | 906 mm |
Westminster-Branson weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −1.7°C | −10.1°C | −6.0°C | 64 mm | 40 cm |
| February | −1.0°C | −10.1°C | −5.6°C | 51 mm | 34 cm |
| March | 4.6°C | −5.0°C | −0.2°C | 52 mm | 20 cm |
| April | 11.8°C | 1.2°C | 6.5°C | 79 mm | 7 cm |
| May | 19.3°C | 7.4°C | 13.4°C | 80 mm | under 1 cm |
| June | 24.6°C | 13.0°C | 18.8°C | 87 mm | 0 cm |
| July | 27.3°C | 15.6°C | 21.5°C | 85 mm | 0 cm |
| August | 26.3°C | 14.8°C | 20.6°C | 72 mm | 0 cm |
| September | 21.9°C | 10.4°C | 16.2°C | 83 mm | 0 cm |
| October | 14.3°C | 4.3°C | 9.4°C | 71 mm | 1 cm |
| November | 7.4°C | −0.8°C | 3.3°C | 77 mm | 12 cm |
| December | 1.5°C | −5.8°C | −2.2°C | 63 mm | 33 cm |
| Year | 13.0°C | 2.9°C | 8.0°C | 862 mm | 146 cm |
January varies most from one year to the next (3.1°C), June least
March has the widest record range, −25.6°C in 2003 to 26.3°C in 2012; the tick on each bar is the month’s normal.
Where Westminster-Branson’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 normals from ECCC for Toronto Buttonville (Airport), its nearest location with complete temperatures.
- Comparisons: every Canadian town and neighbourhood of 2,500 or more, each read from its own nearest location; city totals and reserves are left out.
- Not on this page: sunshine, not in ECCC’s 1991–2020 normals, and the effect of the town’s height, for which there is no figure.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Westminster-Branson’s climate
How warm does Westminster-Branson get in summer?
Expect highs near 27.3°C in July, the hottest month on average.
How cold does Westminster-Branson get in winter?
The coldest nights come in January, averaging −10.1°C.
How much rain and snow does Westminster-Branson get?
Over twelve months, rain and melted snow come to 862 mm; the range runs from 51 mm in February to 87 mm in June.
How long does snow stay on the ground?
The ground is white, with 1 cm or more, on some 76 days a year.
Are these figures for Westminster-Branson itself?
They are the normals for Toronto Buttonville (Airport), measured just outside Westminster-Branson itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Westminster-Branson →
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).