Frosty mornings in Clairlea-Birchmount are scarcer than in 89% of Canadian towns
On a normal July day the thermometer tops out near 27.0°C. By July afternoons alone, it runs hotter than 86% of Canadian towns. The wettest month is June; the driest is March. The furnace earns its keep from November to April, the months that average under 10°C.
Read at Toronto (City), 11 km south-west: ECCC’s normals for 1991–2020.
A year in Clairlea-Birchmount at a glance
Each month’s typical high and low, in °C.
What stands out about Clairlea-Birchmount’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Clairlea-Birchmount feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
About 101 frosts and 124 warm days a year
Frost comes from November to April, most of all in January (about 26 nights). Heat of 30°C or more comes on about 14 days a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 823 mm of rain and snow a year
Some 104 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Snowfall: about 146 cm in a normal year
From November to April snow is likely; January is the peak, at about 40 cm.
Snowfall by month
Centimetres
ECCC’s Toronto (City) normals leave snowfall out; the figures here come from Toronto Buttonville (Airport), 18 km away.
Heating a home in Clairlea-Birchmount
94% of a year’s heating need falls between October and April. Months averaging under 10°C: November to April.
Every day colder than 18°C on average adds its gap in degrees to the year’s heating total. Over a year, a home here needs less heating than 90% of Canadian towns.
Living with Clairlea-Birchmount’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
On average the last spring frost comes around 11 April and the first autumn frost around 6 November: about 208 frost-free days between.
Plan time outside for May, Jun, Jul, Aug and Sep: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →About 59 days a year feel above 30 on the humidex.
Thirty years of averages say little about one bad storm; Clairlea-Birchmount’s hazards page does.
Flood & hazards →ECCC’s normals location: Toronto (City)
Toronto (City) is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 11 km south-west |
| Station altitude | 113 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | Toronto Buttonville (Airport), 18 km |
| Coldest reading, 1991–2020 | −25.9°C |
| Hottest reading, 1991–2020 | 38.2°C |
| Next-nearest location | Toronto (Island), 14 km |
How Clairlea-Birchmount 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 Clairlea-Birchmount’s own would show the same figures). Clairlea-Birchmount has few close neighbours with figures, so the list reaches 17–26 km out.
Clairlea-Birchmount weather by month
Month by month, 1991–2020: the usual high, low and mean, the rain and snow, and the 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 |
March has run from −23.1°C to 25.7°C in thirty years
The month to count on least is January: one year in three its average strays more than 2.7°C from −3.5°C. June moves least, typically by 1.2°C.
Where Clairlea-Birchmount’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Toronto (City), 1991–2020, chosen as the nearest location with a full temperature record.
- Other locations: where a location publishes no full year of precipitation or snowfall, the nearest one that does supplies it, named beside those figures.
- 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: 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 Clairlea-Birchmount’s climate
How warm does Clairlea-Birchmount get in summer?
Peak warmth comes in July, at about 27.0°C by mid-afternoon.
How cold does Clairlea-Birchmount get in winter?
Overnight lows average −6.7°C in January, the coldest month.
How much rain and snow does Clairlea-Birchmount get?
Measured as water, a year brings 823 mm: 82 mm in June, the wettest month, and 53 mm in March, the driest.
Are these figures for Clairlea-Birchmount itself?
Nearly: Toronto (City), the location behind them, sits just beyond Clairlea-Birchmount’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Clairlea-Birchmount →
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).