July in West Hill runs hotter than in 91% of Canadian towns
January mornings start at about −10.1°C. The year swings widely: the coldest month’s nights and the warmest month’s afternoons are 37°C apart. Frost is rarer than in 70% of Canadian towns: about 145 nights a year drop below freezing. Ice scrapers and block heaters earn their keep on roughly 145 days a year at 0°C or below.
Read at Toronto Buttonville (Airport), 18 km north-west: ECCC’s normals for 1991–2020.
A year in West Hill at a glance
Each month’s typical high and low, in °C.
What stands out about West Hill’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in West Hill feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
About 145 frosts and 126 warm days a year
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
June is the wettest month and February the driest. On about 113 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
146 cm of snow in a typical year
Expect snow from November to April, with about 40 cm in January, the snowiest month.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in West Hill
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Degree days add up how far each day’s mean temperature falls below 18°C over a year. By this count, homes here need less heating than 74% of Canadian towns.
Living with West Hill’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Between the last frost, near 3 May, and the first, near 13 October, lie about 161 frost-free days.
The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: Jun, Aug and Sep.
Parks & trails →The wind chill passes −20 on about 22 days in a normal year.
Expect around 55 sticky days a year with the humidex above 30.
For the weather that does damage, from ice storms to floods, see West Hill’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 | 18 km north-west |
| 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), 21 km |
How West Hill 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
Nearby places read from a different ECCC location (places on West Hill’s own would show the same figures). West Hill has few close neighbours with figures, so the list reaches 10–25 km out.
West Hill 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 | −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 |
March: −25.6°C at its coldest, 26.3°C at its warmest
From one year to the next, January’s average typically shifts by 3.1°C around its normal of −6.0°C, the widest of any month, while June’s shifts by 1.2°C.
Where West Hill’s numbers come from
Averages over 30 years, not a forecast.
- Normals: 1991–2020 normals for Toronto Buttonville (Airport) from ECCC’s climate data site, the nearest location with every month of temperature.
- Comparisons: Canadian towns and neighbourhoods of at least 2,500, each placed by its nearest location (city totals and reserves excluded).
- 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 West Hill’s climate
How warm does West Hill get in summer?
Of all twelve months, July has the warmest afternoons, about 27.3°C.
How cold does West Hill get in winter?
Deep winter means January, when nights average −10.1°C.
How much rain and snow does West Hill get?
The year adds up to 862 mm. June is the peak month (87 mm) and February the low one (51 mm).
How long does snow stay on the ground?
On about 76 days a year the ground keeps at least 1 cm of snow.
Are these figures for West Hill itself?
They are the normals for Toronto Buttonville (Airport), measured just outside West Hill itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for West Hill →
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).