Ice rarely forms: Ionview sees fewer frosts than 89% of Canadian towns
Expect July afternoons of about 27.0°C. June is the wettest month, March the driest. In July, afternoons here are warmer than in 86% of Canadian towns. An umbrella or a shovel earns its place on about 104 days a year with 1 mm or more.
Read at Toronto (City), 12 km south-west: ECCC’s normals for 1991–2020.
A year in Ionview at a glance
Each month’s typical high and low, in °C.
What stands out about Ionview’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Ionview feels like
Each season’s and each month’s usual high and low, 1991–2020.
About 101 frosts and 124 warm days a year
Frost comes from November to April, most of all in January (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
Rain and snow 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
ECCC’s Toronto (City) normals leave snowfall out; the figures here come from Toronto Buttonville (Airport), 16 km away.
Heating a home in Ionview
94% of a year’s heating need falls between October and April. Months averaging under 10°C: November to April.
Measured against 18°C: each day’s shortfall in mean temperature, added over twelve months. Homes here need less heating than 90% of Canadian towns.
Living with Ionview’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Frost usually lets go around 11 April and returns near 6 November, about 208 days apart.
Plan time outside for May, Jun, Jul, Aug and Sep: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →Roughly 59 days a year feel hotter than 30 once humidity is counted.
Severe weather is a separate story from the averages: see Ionview’s hazards page.
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 | 12 km south-west |
| Station altitude | 113 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | Toronto Buttonville (Airport), 16 km |
| Coldest reading, 1991–2020 | −25.9°C |
| Hottest reading, 1991–2020 | 38.2°C |
| Next-nearest location | Toronto (Island), 15 km |
How Ionview 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 Ontario.
Nearby towns’ climate
Nearby places read from a different ECCC location (places on Ionview’s own would show the same figures). The nearest places to Ionview with figures are 15–24 km away.
Ionview weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −0.3°C | −6.7°C | −3.5°C | 65 mm | 40 cm |
| February | 0.6°C | −6.0°C | −2.7°C | 54 mm | 34 cm |
| March | 5.1°C | −1.8°C | 1.7°C | 53 mm | 20 cm |
| April | 11.7°C | 3.9°C | 7.8°C | 78 mm | 7 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 | 1 cm |
| November | 8.1°C | 2.3°C | 5.2°C | 71 mm | 12 cm |
| December | 2.6°C | −2.7°C | −0.1°C | 58 mm | 33 cm |
| Year | 13.4°C | 6.0°C | 9.7°C | 823 mm | 146 cm |
In March, anything 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 Ionview’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s 1991–2020 Canadian Climate Normals for Toronto (City), the nearest location with a full year of temperatures.
- 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: Canada’s towns and neighbourhoods of 2,500+ (no city totals, no reserves), each through its own nearest 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 Ionview’s climate
How warm does Ionview get in summer?
Expect highs near 27.0°C in July, the hottest month on average.
How cold does Ionview get in winter?
Midwinter means January, when a typical night reaches −6.7°C.
How much rain and snow does Ionview get?
A normal year brings 823 mm, snow included as water: June is wettest at 82 mm, March driest at 53 mm.
Are these figures for Ionview itself?
Nearly: Toronto (City), the location behind them, sits just beyond Ionview’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Ionview →
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).