Frosty mornings in Downsview are scarcer than in 89% of Canadian towns
Midsummer highs settle at about 27.0°C. Seasons differ by 34°C, from the coldest nights to the warmest afternoons. Summer afternoons here are warmer than in 86% of Canadian towns. The heating season runs November to April: each of those months averages under 10°C.
Read at Toronto (City), 9.4 km south-east: ECCC’s normals for 1991–2020.
A year in Downsview at a glance
Each month’s typical high and low, in °C.
What stands out about Downsview’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Downsview feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
Frost on 101 days, 20°C on 124
The frost season runs November to April, peaking in January at about 26 nights. About 14 days a year top 30°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 823 mm a year
The most falls in June, the least in March. Some 104 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
About 115 cm of snow a year
The snow season runs November to April; January brings the most, about 32 cm.
Snowfall by month
Centimetres
ECCC’s Toronto (City) normals leave snowfall out; the figures here come from Toronto Pearson (Airport), 13 km away.
Heating a home in Downsview
94% of a year’s heating need falls between October and April. Months averaging under 10°C: November to April.
The total grows by a degree for every degree a day’s mean sits under 18°C. A house here needs less heating than 90% of Canadian towns.
Living with Downsview’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
The frost-free stretch runs from about 11 April to about 6 November, some 208 days in a normal year.
The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: May, Jun, Jul, Aug and Sep.
Parks & trails →Humid summer days, the humidex above 30, number about 59 a year.
A normal year has no blizzard, flood or heat wave in it; Downsview’s hazards page looks at those.
Flood & hazards →ECCC’s normals location: Toronto (City)
Behind the 1991–2020 normals for Toronto (City) are 2 stations, which ECCC combines into one record.
| Distance from the town | 9.4 km south-east |
| Station altitude | 113 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | Toronto Pearson (Airport), 13 km |
| Coldest reading, 1991–2020 | −25.9°C |
| Hottest reading, 1991–2020 | 38.2°C |
| Next-nearest location | Toronto (Island), 13 km |
How Downsview compares
Against the 2,611 Canadian towns and neighbourhoods of 2,500 or more, each read from its own normals location; the dots are the other locations those towns use in Ontario.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Downsview’s would only repeat its figures. No closer places have figures: these lie 12–23 km from Downsview.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Downsview Toronto (City) | 27.0°C | −6.7°C | 823 mm |
| Vaughan 12 km · Toronto Buttonville (Airport) | 27.3°C about the same | −10.1°C 3.4°C colder | 862 mm |
| Mississauga 22 km · Toronto Pearson (Airport) | 27.4°C about the same | −8.9°C 2.2°C colder | 807 mm |
Downsview 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 | −0.3°C | −6.7°C | −3.5°C | 65 mm | 32 cm |
| February | 0.6°C | −6.0°C | −2.7°C | 54 mm | 28 cm |
| March | 5.1°C | −1.8°C | 1.7°C | 53 mm | 17 cm |
| April | 11.7°C | 3.9°C | 7.8°C | 78 mm | 5 cm |
| May | 18.8°C | 10.0°C | 14.5°C | 76 mm | under 1 cm |
| June | 24.2°C | 15.3°C | 19.8°C | 82 mm | 0 cm |
| July | 27.0°C | 18.1°C | 22.5°C | 77 mm | 0 cm |
| August | 26.1°C | 17.7°C | 21.9°C | 72 mm | 0 cm |
| September | 22.0°C | 13.8°C | 17.9°C | 69 mm | 0 cm |
| October | 14.6°C | 7.7°C | 11.2°C | 69 mm | under 1 cm |
| November | 8.1°C | 2.3°C | 5.2°C | 71 mm | 9 cm |
| December | 2.6°C | −2.7°C | −0.1°C | 58 mm | 24 cm |
| Year | 13.4°C | 6.0°C | 9.7°C | 823 mm | 115 cm |
A March here can run from −23.1°C to 25.7°C
Two years in three, January’s average falls within 2.7°C of its normal of −3.5°C; June keeps to within 1.2°C.
Where Downsview’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the closest ECCC location with twelve months of temperature normals, Toronto (City), 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: 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: 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 Downsview’s climate
How warm does Downsview get in summer?
Summer peaks in July: a typical afternoon reaches 27.0°C.
How cold does Downsview get in winter?
Midwinter means January, when a typical night reaches −6.7°C.
How much rain and snow does Downsview get?
Count on roughly 823 mm a year, heaviest in June (82 mm) and lightest in March (53 mm).
Are these figures for Downsview itself?
Nearly: Toronto (City), the location behind them, sits just beyond Downsview’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Downsview →
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).