Photo: OldYorkGuy · CC BY-SA 3.0Toronto gets fewer frosts than 89% of Canadian towns
Sunny July days climb to about 27.0°C. By July afternoons alone, it runs hotter than 86% of Canadian towns. The gap between a January night and a July afternoon is 34°C. Warm coats and heating bills mark the months from November to April, when means dip under 10°C.
Measured at Toronto (City), 5.2 km south: ECCC’s normals for 1991–2020.
A year in Toronto at a glance
Each month’s typical high and low, in °C.
What stands out about Toronto’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Toronto feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
101 frost days and 124 days above 20°C 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
823 mm of precipitation in a typical 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
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 Toronto
94% of a year’s heating need falls between October and April. Months averaging under 10°C: November to April.
A heating degree day is one degree of shortfall below 18°C for one day, summed over the year. By this count, homes here need less heating than 90% of Canadian towns.
Living with Toronto’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Seedlings can go out once the average last frost, around 11 April, has passed; autumn’s first, near 6 November, ends a season of about 208 days.
Highs of 17–27°C with nights of 8°C or more come in May, Jun, Jul, Aug and Sep.
Parks & trails →Expect around 59 sticky days a year with the humidex above 30.
For blizzards, floods and wildfire, turn to Toronto’s hazards page.
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 | 5.2 km south |
| 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), 9.6 km |
How Toronto 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
The nearest places on a normals location of their own: those that share Toronto’s would only repeat its figures. The nearest places to Toronto with figures are 17–27 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Toronto Toronto (City) | 27.0°C | −6.7°C | 823 mm |
| Vaughan 17 km · Toronto Buttonville (Airport) | 27.3°C about the same | −10.1°C 3.4°C colder | 862 mm |
| Mississauga 26 km · Toronto Pearson (Airport) | 27.4°C about the same | −8.9°C 2.2°C colder | 807 mm |
| Pickering 27 km · Oshawa | 25.7°C 1.3°C cooler | −8.9°C 2.2°C colder | 906 mm |
Toronto 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 |
A January here can run warm or cold, its average moving by about 2.7°C; the steadiest month is June
March has the widest record range, −23.1°C in 2003 to 25.7°C in 1998; the tick on each bar is the month’s normal.
Where Toronto’s numbers come from
Averages over 30 years, not a forecast.
- Normals: 1991–2020 normals for Toronto (City) from ECCC’s climate data site, the nearest location with every month of temperature.
- 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: 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 (no 1991–2020 normals exist for it) and any altitude adjustment, since there is no elevation for the town itself.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Toronto’s climate
How warm does Toronto get in summer?
July is the warmest month, with average highs of 27.0°C.
How cold does Toronto get in winter?
On a normal January night the air drops to −6.7°C, the coldest of the year.
How much rain and snow does Toronto get?
Around 823 mm a year in all, from 82 mm in June down to 53 mm in March.
Are these figures for Toronto itself?
Yes: they are ECCC’s 1991–2020 normals for Toronto (City), a location inside Toronto.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Toronto →
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).