Photo: Vertiflite · CC BY-SA 3.0Vaughan has warmer summer afternoons than 91% of Canadian towns
Deep winter brings January lows near −10.1°C. The seasons are far apart: from a winter night to a summer afternoon the average spans 37°C. Frosty nights are scarcer than in 70% of Canadian towns. If you like long walks, June, August and September offer highs of 22–26°C.
The nearest ECCC normals location to Vaughan is Toronto Buttonville (Airport), 13 km east, and every figure on this page is its.
A year in Vaughan at a glance
Each month’s typical high and low, in °C.
What stands out about Vaughan’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Vaughan feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
Frost on 145 days, 20°C on 126
Frost comes from October to May; in January almost every night freezes. Deep cold, under −20°C, comes on about 6 nights 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 862 mm a year
June is the wettest month and February the driest. Some 113 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone 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
Snow on the ground by month
Centimetres at month’s end
Heating a home in Vaughan
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Behind the figure: the degrees each day’s mean falls under 18°C, summed for the year. A house here needs less heating than 74% of Canadian towns.
Living with Vaughan’s climate
What the normals mean for a garden, a day outside and the depth of winter.
From about 3 May to 13 October the garden is usually clear of frost, some 161 days.
Warm afternoons without cold nights, 17–27°C and 8°C or more, mark Jun, Aug and Sep.
Parks & trails →Winter brings about 22 days with a wind chill below −20.
About 55 days a year turn sultry, with the humidex past 30.
A normal year has no blizzard, flood or heat wave in it; Vaughan’s hazards page looks at those.
Flood & hazards →ECCC’s normals location: Toronto Buttonville (Airport)
ECCC builds the Toronto Buttonville (Airport) normals from 3 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 13 km east |
| Station altitude | 198 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −35.2°C |
| Hottest reading, 1991–2020 | 37.8°C |
| Average wind | 12.2 km/h on average, most often from the north |
| Next-nearest location | Toronto Pearson (Airport), 19 km |
How Vaughan 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 Vaughan’s own would show the same figures). Vaughan has few close neighbours with figures, so the list reaches 17–30 km out.
Vaughan 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 | −1.7°C | −10.1°C | −6.0°C | 64 mm | 40 cm |
| February | −1.0°C | −10.1°C | −5.6°C | 51 mm | 34 cm |
| March | 4.6°C | −5.0°C | −0.2°C | 52 mm | 20 cm |
| April | 11.8°C | 1.2°C | 6.5°C | 79 mm | 7 cm |
| May | 19.3°C | 7.4°C | 13.4°C | 80 mm | under 1 cm |
| June | 24.6°C | 13.0°C | 18.8°C | 87 mm | 0 cm |
| July | 27.3°C | 15.6°C | 21.5°C | 85 mm | 0 cm |
| August | 26.3°C | 14.8°C | 20.6°C | 72 mm | 0 cm |
| September | 21.9°C | 10.4°C | 16.2°C | 83 mm | 0 cm |
| October | 14.3°C | 4.3°C | 9.4°C | 71 mm | 1 cm |
| November | 7.4°C | −0.8°C | 3.3°C | 77 mm | 12 cm |
| December | 1.5°C | −5.8°C | −2.2°C | 63 mm | 33 cm |
| Year | 13.0°C | 2.9°C | 8.0°C | 862 mm | 146 cm |
The most changeable month: January, give or take 3.1°C; the steadiest, June
The thirty-year records stretch furthest in March: a low of −25.6°C in 2003 and a high of 26.3°C in 2012.
Where Vaughan’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 Canadian Climate Normals at Toronto Buttonville (Airport), the closest ECCC location with twelve months of temperature normals.
- Comparisons: Canadian towns and neighbourhoods of at least 2,500, each placed by its nearest location (city totals and reserves excluded).
- 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 Vaughan’s climate
How warm does Vaughan get in summer?
Expect highs near 27.3°C in July, the hottest month on average.
How cold does Vaughan get in winter?
Midwinter means January, when a typical night reaches −10.1°C.
How much rain and snow does Vaughan get?
Measured as water, a year brings 862 mm: 87 mm in June, the wettest month, and 51 mm in February, the driest.
How long does snow stay on the ground?
The ground is white, with 1 cm or more, on some 76 days a year.
Are these figures for Vaughan itself?
They are borrowed from Toronto Buttonville (Airport), the nearest place to Vaughan where ECCC publishes 1991–2020 normals.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Vaughan →
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).