Afternoon heat in Milliken beats that of 91% of Canadian towns
In January the night’s low is typically −10.1°C. Only about 145 nights a year bring a frost, fewer than in 70% of Canadian towns. Temperatures cover 37°C across the year, low to high. Windshields need scraping on about 145 mornings a year, the days the air reaches 0°C or below.
1991–2020 normals from ECCC’s Toronto Buttonville (Airport) location, 8.5 km north-west.
A year in Milliken at a glance
Each month’s typical high and low, in °C.
What stands out about Milliken’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Milliken feels like
Each season’s and each month’s usual high and low, 1991–2020.
145 frost days and 126 days above 20°C a year
From October to May frost is routine, and in January it comes on almost every night. Some 6 nights a year drop under −20°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
862 mm of precipitation in a typical year
The most falls in June, the least in February. About 113 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 146 cm of snow a 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 Milliken
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
ECCC sums, over the year, how many degrees each day’s average falls short of 18°C. Over a year, a home here needs less heating than 74% of Canadian towns.
Living with Milliken’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Seedlings can go out once the average last frost, around 3 May, has passed; autumn’s first, near 13 October, ends a season of about 161 days.
Afternoons of 17–27°C and nights of at least 8°C arrive in Jun, Aug and Sep.
Parks & trails →Plan for about 22 days a year with a wind chill below −20.
Roughly 55 days a year feel hotter than 30 once humidity is counted.
Ice storms, floods and heat waves are risks, not averages: they are on Milliken’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 | 8.5 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), 20 km |
How Milliken 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 Milliken’s own would show the same figures). No closer places have figures: these lie 14–28 km from Milliken.
Milliken 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 |
In March, anything from −25.6°C to 26.3°C
January is the least predictable month: about two years in three its average lands within 3.1°C of the normal, −6.0°C. June is the steadiest, within 1.2°C.
Where Milliken’s numbers come from
Averages over 30 years, not a forecast.
- Normals: 1991–2020 normals for Toronto Buttonville (Airport) from ECCC’s climate data site, the nearest location with every month of temperature.
- Comparisons: every place of 2,500+ in Canada but the city hubs and the reserves, each on its nearest ECCC location.
- Not on this page: sunshine, not in ECCC’s 1991–2020 normals, and the effect of the town’s height, for which there is no figure.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Milliken’s climate
How warm does Milliken get in summer?
On a normal day in July the thermometer climbs to 27.3°C, the warmest of the year.
How cold does Milliken get in winter?
In January, the coldest month, the typical low is −10.1°C.
How much rain and snow does Milliken get?
Count on roughly 862 mm a year, heaviest in June (87 mm) and lightest in February (51 mm).
How long does snow stay on the ground?
There is 1 cm of snow or more on the ground on roughly 76 days a year.
Are these figures for Milliken itself?
Close to it: they are ECCC’s 1991–2020 normals for Toronto Buttonville (Airport), just outside Milliken’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Milliken →
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).