Hardly any Canadian towns see harsher January nights than Smooth Rock Falls
The warmest part of a July day comes in at 24.1°C on average. In July, afternoons here are cooler than in 70% of Canadian towns. Rain or snow is most frequent in September and least in February. Homes need heating from October to May, the months averaging under 10°C.
Every figure here comes from Kapuskasing, 63 km west; ECCC has no normals closer to Smooth Rock Falls, so they describe the wider area.
A year in Smooth Rock Falls at a glance
Each month’s typical high and low, in °C.
What stands out about Smooth Rock Falls’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Smooth Rock Falls feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
Frost on 207 days, 20°C on 88
From September to June frost is routine, and in January it comes on almost every night. Some 63 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
806 mm of precipitation in a typical year
Some 127 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 303 cm of snow a year
Snow falls from October to May, most of all in December (about 57 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Smooth Rock Falls
88% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.
Behind the figure: the degrees each day’s mean falls under 18°C, summed for the year. Homes here need more heating than almost every Canadian town.
Living with Smooth Rock Falls’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
A normal year gives the garden about 104 frost-free days, roughly 4 June to 17 September.
Afternoons of 17–27°C and nights of at least 8°C arrive in Jun, Jul and Aug.
Parks & trails →Roughly 90 days a year feel colder than −20 in the wind.
Humid heat, a humidex over 30, comes on about 23 days a year.
A typical year is calm by definition; Smooth Rock Falls’s hazards page covers the exceptions.
Flood & hazards →ECCC’s normals location: Kapuskasing
ECCC builds the Kapuskasing normals from 3 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 63 km west |
| Station altitude | 227 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −43.0°C |
| Hottest reading, 1991–2020 | 38.3°C |
| Average wind | 12.4 km/h on average, most often from the north-west |
| Next-nearest location | Timmins/Victor Power, 82 km |
How Smooth Rock Falls 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
Nearby places read from a different ECCC location (places on Smooth Rock Falls’s own would show the same figures). Smooth Rock Falls has no close neighbour with figures; the nearest is 49 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Smooth Rock Falls Kapuskasing | 24.1°C | −23.3°C | 806 mm |
| Cochrane 49 km · Timmins/Victor Power | 24.4°C about the same | −22.3°C 1.0°C milder | 796 mm |
Smooth Rock Falls 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 | −11.5°C | −23.3°C | −17.4°C | 48 mm | 54 cm |
| February | −8.5°C | −22.3°C | −15.4°C | 33 mm | 40 cm |
| March | −1.1°C | −15.4°C | −8.2°C | 45 mm | 42 cm |
| April | 6.9°C | −6.0°C | 0.5°C | 58 mm | 34 cm |
| May | 16.0°C | 2.0°C | 9.1°C | 67 mm | 6 cm |
| June | 22.0°C | 8.0°C | 15.0°C | 74 mm | under 1 cm |
| July | 24.1°C | 11.2°C | 17.7°C | 99 mm | under 1 cm |
| August | 22.6°C | 9.9°C | 16.3°C | 79 mm | 0 cm |
| September | 17.4°C | 5.8°C | 11.6°C | 99 mm | 1 cm |
| October | 8.5°C | −0.1°C | 4.2°C | 85 mm | 17 cm |
| November | 0.1°C | −7.6°C | −3.8°C | 67 mm | 52 cm |
| December | −7.4°C | −16.9°C | −12.2°C | 53 mm | 57 cm |
| Year | 7.4°C | −4.6°C | 1.4°C | 806 mm | 303 cm |
The most changeable month: January, give or take 3.6°C; the steadiest, July
Records from 1991 to 2020: no month spans more than March, between −37.8°C (2017) and 26.2°C (2012).
Where Smooth Rock Falls’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Kapuskasing, 1991–2020, chosen as the nearest location with a full temperature record.
- Comparisons: the towns and neighbourhoods of 2,500+ across Canada, each on its nearest normals location, without the city totals or the reserves.
- 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 Smooth Rock Falls’s climate
How warm does Smooth Rock Falls get in summer?
Of all twelve months, July has the warmest afternoons, about 24.1°C.
How cold does Smooth Rock Falls get in winter?
Of all twelve months, January has the coldest nights, about −23.3°C.
How much rain and snow does Smooth Rock Falls get?
Rain and snow, with snow counted as water, total 806 mm a year; September leads with 99 mm and February trails with 33 mm.
How long does snow stay on the ground?
Snow covers the ground, 1 cm or more, on about 165 days a year.
Are these figures for Smooth Rock Falls itself?
No. The nearest normals are those of Kapuskasing, a long way from Smooth Rock Falls.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Smooth Rock Falls →
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).