Summer afternoons in German Mills are warmer than in 91% of Canadian towns
January mornings start at about −10.1°C. The year swings widely: the coldest month’s nights and the warmest month’s afternoons are 37°C apart. Only about 145 nights a year bring a frost, fewer than in 70% of Canadian towns. Plan for rain or snow on about 113 days a year, the days with 1 mm or more.
No ECCC station in German Mills has 1991–2020 normals; the page reads Toronto Buttonville (Airport), 4.5 km north, instead.
A year in German Mills at a glance
Each month’s typical high and low, in °C.
What stands out about German Mills’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in German Mills 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
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
About 862 mm of rain and snow a year
The most falls in June, the least in February.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 146 cm in a normal year
The snow season runs November to April; January brings the most, about 40 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in German Mills
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Every day colder than 18°C on average adds its gap in degrees to the year’s heating total. By this count, homes here need less heating than 74% of Canadian towns.
Living with German Mills’s climate
What the normals mean for a garden, a day outside and the depth of winter.
About 161 days a year pass without frost, from an average last frost of 3 May to a first of 13 October.
Plan time outside for Jun, Aug and Sep: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →The wind chill passes −20 on about 22 days in a normal year.
About 55 days a year turn sultry, with the humidex past 30.
What averages leave out, the floods and ice storms, is on German Mills’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 | 4.5 km north |
| 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), 17 km |
How German Mills 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
The nearest places on a normals location of their own: those that share German Mills’s would only repeat its figures. Distances here run 12–28 km: that is how far the nearest places with figures are from German Mills.
German Mills 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 |
March has run from −25.6°C to 26.3°C in thirty years
The month to count on least is January: one year in three its average strays more than 3.1°C from −6.0°C. June moves least, typically by 1.2°C.
Where German Mills’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: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- Not on this page: a sunshine figure (ECCC published none for 1991–2020) and any lapse-rate correction for height, as the town has no elevation here.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about German Mills’s climate
How warm does German Mills get in summer?
The year’s warmest days come in July, with highs averaging 27.3°C.
How cold does German Mills get in winter?
Of all twelve months, January has the coldest nights, about −10.1°C.
How much rain and snow does German Mills get?
Some 862 mm falls in a year. Most of it comes in June (87 mm), the least in February (51 mm).
How long does snow stay on the ground?
Snow covers the ground, 1 cm or more, on about 76 days a year.
Are these figures for German Mills itself?
Not as such: Toronto Buttonville (Airport) is the nearest normals location, and German Mills has none.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for German Mills →
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).