Summer afternoons in Guildwood are warmer than in 91% of Canadian towns
Midwinter brings lows of about −10.1°C. The gap between a January night and a July afternoon is 37°C. Only about 145 nights a year bring a frost, fewer than in 70% of Canadian towns. Wet days, with 1 mm of rain or snow or more, come about 113 times a year.
Read at Toronto Buttonville (Airport), 18 km north-west: ECCC’s normals for 1991–2020.
A year in Guildwood at a glance
Each month’s typical high and low, in °C.
What stands out about Guildwood’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Guildwood feels like
Each season’s and each month’s usual high and low, 1991–2020.
About 145 frosts and 126 warm days a year
From October to May frost is routine, and in January it comes on almost every night. 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.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 146 cm of snow a year
Snow falls from November to April, most of all in January (about 40 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Guildwood
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
A heating degree day is one degree of shortfall below 18°C for one day, summed over the year. A house here needs less heating than 74% of Canadian towns.
Living with Guildwood’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Frost usually lets go around 3 May and returns near 13 October, about 161 days apart.
Plan time outside for Jun, Aug and Sep: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →A wind chill below −20 is part of about 22 days a year here.
Humid heat, a humidex over 30, comes on about 55 days a year.
For blizzards, floods and wildfire, turn to Guildwood’s hazards page.
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 | 18 km north-west |
| 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 (City), 19 km |
How Guildwood 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
Places around Guildwood whose figures come from another normals location.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Guildwood Toronto Buttonville (Airport) | 27.3°C | −10.1°C | 862 mm |
| Scarborough Village 1.7 km · Toronto (City) | 27.0°C about the same | −6.7°C 3.4°C milder | 823 mm |
| Golfdale-Cedarbrae-Woburn 2.1 km · Toronto Buttonville (Airport) | 27.3°C about the same | −10.1°C about the same | 862 mm |
Guildwood weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| 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 |
A March here can run from −25.6°C to 26.3°C
Bars run from each month’s record low to its record high over 1991–2020; January is the month whose average wanders most from year to year (±3.1°C around −6.0°C), June the one that wanders least (±1.2°C).
Where Guildwood’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s 1991–2020 Canadian Climate Normals for Toronto Buttonville (Airport), the nearest location with a full year of temperatures.
- 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, 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 Guildwood’s climate
How warm does Guildwood get in summer?
Midsummer means July, with afternoons near 27.3°C on a typical day.
How cold does Guildwood get in winter?
Overnight lows average −10.1°C in January, the coldest month.
How much rain and snow does Guildwood get?
862 mm a year counting snow as water. The wettest month is June (87 mm); the driest, February (51 mm).
How long does snow stay on the ground?
In a normal winter there are about 76 days with at least 1 cm of snow lying.
Are these figures for Guildwood itself?
Close to it: they are ECCC’s 1991–2020 normals for Toronto Buttonville (Airport), just outside Guildwood’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Guildwood →
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).