Snowfall in Turnball trails that of 81% of Canadian towns: about 115 cm a year
In July the day’s top temperature is typically 26.6°C. Some 36°C separates winter nights from summer afternoons. Only about 139 nights a year bring a frost, fewer than in 73% of Canadian towns. Homes need heating from October to April, the months averaging under 10°C.
1991–2020 normals from ECCC’s Hamilton location, 10 km south.
A year in Turnball at a glance
Each month’s typical high and low, in °C.
What stands out about Turnball’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Turnball feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
About 139 frosts and 123 warm days a year
The frost season runs October to May, and January freezes nearly every night. About 13 days a year top 30°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
Rain and melted snow: about 902 mm a year
July is the wettest month and February the driest. About 114 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 115 cm of snow a year
From November to April snow is likely; January is the peak, at about 32 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
ECCC’s Hamilton normals leave snowfall out; the figures here come from Toronto Pearson (Airport), 55 km away.
Heating a home in Turnball
92% 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. Over a year, a home here needs less heating than 77% of Canadian towns.
Living with Turnball’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
About 164 days a year pass without frost, from an average last frost of 1 May to a first of 12 October.
For long days outdoors, Jun, Jul, Aug and Sep bring highs of 17–27°C and lows of 8°C or more.
Parks & trails →Count on some 20 days a year when the wind makes it feel below −20.
Muggy heat with a humidex over 30 arrives on about 59 days a year.
A typical year is calm by definition; Turnball’s hazards page covers the exceptions.
Flood & hazards →ECCC’s normals location: Hamilton
ECCC builds the Hamilton normals from 2 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 10 km south |
| Station altitude | 238 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Snowfall from | Toronto Pearson (Airport), 55 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, 15 km |
How Turnball compares
Against the 2,611 Canadian towns and neighbourhoods of 2,500 or more, each read from its own normals location; the dots are the other locations those towns use in Ontario.
Nearby towns’ climate
Places around Turnball whose figures come from another normals location. The nearest places to Turnball with figures are 10–30 km away.
Turnball 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 |
A March here can run from −24.6°C to 26.8°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 (±3.0°C around −5.3°C), June the one that wanders least (±1.1°C).
Where Turnball’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Hamilton, 1991–2020, chosen as the nearest location with a full temperature record.
- Other locations: precipitation and snowfall come from the nearest location that publishes all twelve months of them, as named above.
- 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, absent from every 1991–2020 location, and an altitude correction, for want of the town’s own elevation.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Turnball’s climate
How warm does Turnball get in summer?
Afternoons average 26.6°C in July, the warmest time of year.
How cold does Turnball get in winter?
At its coldest, in February, the normal low is −9.2°C.
How much rain and snow does Turnball get?
Precipitation totals 902 mm a year, with July the wettest month (98 mm) and February the driest (53 mm).
How long does snow stay on the ground?
On about 82 days a year the ground keeps at least 1 cm of snow.
Are these figures for Turnball itself?
They are the normals for Hamilton, measured just outside Turnball itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Turnball →
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).