Greeningdon gets less snow than 81% of Canadian towns: about 115 cm a year
In July the day’s top temperature is typically 26.6°C. Only about 139 nights a year bring a frost, fewer than in 73% of Canadian towns. The wettest month is July; the driest is February. Frost comes on about 139 days a year, so leave time to clear the car.
1991–2020 normals from ECCC’s Hamilton location, 8.0 km south-west.
A year in Greeningdon at a glance
Each month’s typical high and low, in °C.
What stands out about Greeningdon’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Greeningdon feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
Frost on 139 days, 20°C on 123
The frost season runs October to May, and January freezes nearly every night. Some 13 days a year climb past 30°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
902 mm of precipitation in a typical year
On about 114 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 115 cm of snow a year
Snow falls from November to April, most of all in January (about 32 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Hamilton publishes no full year of snowfall, so these figures come from Toronto Pearson (Airport), 54 km away.
Heating a home in Greeningdon
92% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Measured against 18°C: each day’s shortfall in mean temperature, added over twelve months. A house here needs less heating than 77% of Canadian towns.
Living with Greeningdon’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Seedlings can go out once the average last frost, around 1 May, has passed; autumn’s first, near 12 October, ends a season of about 164 days.
For long days outdoors, Jun, Jul, Aug and Sep bring highs of 17–27°C and lows of 8°C or more.
Parks & trails →Wind chill falls below −20 on about 20 days a year: cover skin and dress in layers.
A humidex above 30 marks about 59 days in a normal year.
Averages smooth over blizzards, ice storms, floods and heat waves; Greeningdon’s hazards page covers the risks.
Flood & hazards →ECCC’s normals location: Hamilton
Behind the 1991–2020 normals for Hamilton are 2 stations, which ECCC combines into one record.
| Distance from the town | 8.0 km south-west |
| Station altitude | 238 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Snowfall from | Toronto Pearson (Airport), 54 km |
| Coldest reading, 1991–2020 | −30.0°C |
| Hottest reading, 1991–2020 | 36.4°C |
| Average wind | 16.0 km/h on average, most often from the south-west |
| Next-nearest location | Burlington Piers, 10 km |
How Greeningdon 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
Places around Greeningdon whose figures come from another normals location. The nearest places to Greeningdon with figures are 2–30 km away.
Greeningdon 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 | −1.4°C | −9.1°C | −5.3°C | 73 mm | 32 cm |
| February | −0.9°C | −9.2°C | −5.0°C | 53 mm | 28 cm |
| March | 4.7°C | −4.4°C | 0.2°C | 69 mm | 17 cm |
| April | 11.8°C | 1.3°C | 6.5°C | 81 mm | 5 cm |
| May | 18.9°C | 7.3°C | 13.1°C | 81 mm | under 1 cm |
| June | 24.2°C | 12.8°C | 18.5°C | 78 mm | 0 cm |
| July | 26.6°C | 15.2°C | 20.9°C | 98 mm | 0 cm |
| August | 25.6°C | 14.5°C | 20.1°C | 67 mm | 0 cm |
| September | 21.7°C | 10.5°C | 16.1°C | 74 mm | 0 cm |
| October | 14.5°C | 4.8°C | 9.7°C | 84 mm | under 1 cm |
| November | 7.7°C | −0.2°C | 3.8°C | 78 mm | 9 cm |
| December | 1.5°C | −5.4°C | −1.9°C | 67 mm | 24 cm |
| Year | 12.9°C | 3.2°C | 8.1°C | 902 mm | 115 cm |
March: −24.6°C at its coldest, 26.8°C at its warmest
Year to year, January varies most (a standard deviation of 3.0°C around −5.3°C) and June least (1.1°C).
Where Greeningdon’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s 1991–2020 Canadian Climate Normals for Hamilton, the nearest location with a full year of temperatures.
- Other locations: a location missing months of precipitation or snow is filled from the nearest that has them all, never mixed month by month.
- Comparisons: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- 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 Greeningdon’s climate
How warm does Greeningdon get in summer?
At its warmest, in July, the normal high is 26.6°C.
How cold does Greeningdon get in winter?
On a normal February night the air drops to −9.2°C, the coldest of the year.
How much rain and snow does Greeningdon get?
The year adds up to 902 mm. July is the peak month (98 mm) and February the low one (53 mm).
How long does snow stay on the ground?
In a normal winter there are about 82 days with at least 1 cm of snow lying.
Are these figures for Greeningdon itself?
Almost: ECCC’s Hamilton location, which gives these figures, lies a short way outside Greeningdon.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Greeningdon →
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).