Summer arrives in force in Sheridan, hotter than in 95% of Canadian towns
On a normal January night the air cools to about −8.9°C. Frosty nights are scarcer than in 82% of Canadian towns. The seasons are far apart: from a winter night to a summer afternoon the average spans 36°C. Homes need heating from November to April, the months averaging under 10°C.
These are not Sheridan’s own readings: ECCC keeps no normals there, so the page uses Toronto Pearson (Airport), 8.3 km east.
A year in Sheridan at a glance
Each month’s typical high and low, in °C.
What stands out about Sheridan’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Sheridan feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
Frost on 131 days, 20°C on 125
From October to April frost is routine, and in January it comes on almost every night. Heat of 30°C or more comes on about 17 days a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
Rain and melted snow: about 807 mm a year
June brings the most rain and snow; February, the least. On about 106 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
115 cm of snow in a typical year
Expect snow from November to April, with about 32 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 Sheridan
93% of a year’s heating need falls between October and April. Months averaging under 10°C: November to April.
Each day the mean sits under 18°C adds its shortfall; a year’s total is its heating degree days. By this count, homes here need less heating than 83% of Canadian towns.
Living with Sheridan’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
About 174 days a year pass without frost, from an average last frost of 27 April to a first of 20 October.
Afternoons of 17–27°C and nights of at least 8°C arrive in May, Jun, Aug and Sep.
Parks & trails →Frostbite weather, a wind chill under −20, turns up on about 21 days a year.
Summer brings about 56 days when the humidex passes 30.
For blizzards, floods and wildfire, turn to Sheridan’s hazards page.
Flood & hazards →ECCC’s normals location: Toronto Pearson (Airport)
Behind the 1991–2020 normals for Toronto Pearson (Airport) are 2 stations, which ECCC combines into one record.
| Distance from the town | 8.3 km east |
| Station altitude | 173 m |
| Completeness | at least 25 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −31.0°C |
| Hottest reading, 1991–2020 | 37.9°C |
| Average wind | 15.7 km/h on average, most often from the west |
| Next-nearest location | Toronto (City), 26 km |
How Sheridan 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
Places around Sheridan whose figures come from another normals location. The nearest places to Sheridan with figures are 20–28 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Sheridan Toronto Pearson (Airport) | 27.4°C | −8.9°C | 807 mm |
| Milton 20 km · Burlington Piers | 25.5°C 1.9°C cooler | −6.3°C 2.6°C milder | 807 mm |
| Vaughan 26 km · Toronto Buttonville (Airport) | 27.3°C about the same | −10.1°C 1.2°C colder | 862 mm |
| Toronto 28 km · Toronto (City) | 27.0°C about the same | −6.7°C 2.2°C milder | 823 mm |
Sheridan 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 | −1.2°C | −8.9°C | −5.0°C | 62 mm | 32 cm |
| February | −0.3°C | −8.5°C | −4.4°C | 50 mm | 28 cm |
| March | 5.0°C | −3.8°C | 0.6°C | 51 mm | 17 cm |
| April | 12.0°C | 1.9°C | 7.0°C | 77 mm | 5 cm |
| May | 19.2°C | 8.2°C | 13.7°C | 78 mm | under 1 cm |
| June | 24.5°C | 13.9°C | 19.2°C | 81 mm | 0 cm |
| July | 27.4°C | 16.6°C | 22.1°C | 74 mm | 0 cm |
| August | 26.3°C | 15.8°C | 21.1°C | 69 mm | 0 cm |
| September | 22.3°C | 11.6°C | 16.9°C | 69 mm | 0 cm |
| October | 14.6°C | 5.3°C | 10.0°C | 67 mm | under 1 cm |
| November | 7.9°C | 0.2°C | 4.1°C | 72 mm | 9 cm |
| December | 1.9°C | −5.0°C | −1.6°C | 59 mm | 24 cm |
| Year | 13.3°C | 3.9°C | 8.6°C | 807 mm | 115 cm |
January strays furthest from its normal year to year, by 3.0°C; June the least
The thirty-year records stretch furthest in March: a low of −24.7°C in 2003 and a high of 26.0°C in 2012.
Where Sheridan’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 Canadian Climate Normals at Toronto Pearson (Airport), the closest ECCC location with twelve months of temperature normals.
- Comparisons: the towns and neighbourhoods of 2,500+ across Canada, each on its nearest normals location, without the city totals or the reserves.
- 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 Sheridan’s climate
How warm does Sheridan get in summer?
In July, the warmest month, the typical high is 27.4°C.
How cold does Sheridan get in winter?
The year’s coldest nights belong to January, at about −8.9°C.
How much rain and snow does Sheridan get?
Rain and snow add up to about 807 mm of water a year; June brings the most (81 mm), February the least (50 mm).
How long does snow stay on the ground?
Roughly 69 days a year start with snow cover of 1 cm or more.
Are these figures for Sheridan itself?
No. ECCC measures normals at Toronto Pearson (Airport), not in Sheridan; the page uses the nearest it has.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Sheridan →
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).